Fuel Ez

Carbon capture and storage

CO2 capture

Main articles: Carbon dioxide scrubber and carbon dioxide air capture

Capturing CO2 might be applied to large point sources, such as large fossil fuel or biomass energy facilities, industries with major CO2 emissions, natural gas processing, synthetic fuel plants and fossil fuel-based hydrogen production plants. Air capture is also possible. But air away from the point source also contains oxygen, and so capturing air, scrubbing the CO2 from the air, and then storing the CO2 could slow down the oxygen cycle in the biosphere.

Concentrated CO2 from the combustion of coal in oxygen is relatively pure, and could be directly processed. In other instances, especially with air capture, a scrubbing process would be needed.

Broadly, three different types of technologies exist: post-combustion, pre-combustion, and oxyfuel combustion.

In ost combustion capture, the CO2 is removed after combustion of the fossil fuel – this is the scheme that would be applied to fossil-fuel burning power plants. Here, carbon dioxide is captured from flue gases at power stations or other large point sources. The technology is well understood and is currently used in other industrial applications, although not at the same scale as might be required in a commercial scale power station.

The technology for pre-combustion is widely applied in fertilizer, chemical, gaseous fuel (H2, CH4), and power production. In these cases, the fossil fuel is partially oxidized, for instance in a gasifier. The resulting syngas (CO and H2) is shifted into CO2 and more H2. The resulting CO2 can be captured from a relatively pure exhaust stream. The H2 can now be used as fuel; the carbon dioxide is removed before combustion takes place.

There are several advantages and disadvantages when compared to conventional post combustion carbon dioxide capture.

In oxy-fuel combustion the fuel is burned in oxygen instead of air. To limit the resulting flame temperatures to levels common during conventional combustion, cooled flue gas is recirculated and injected into the combustion chamber. The flue gas consists of mainly carbon dioxide and water vapor, the latter of which is condensed through cooling. The result is an almost pure carbon dioxide stream that can be transported to the sequestration site and stored. Power plant processes based on oxyfuel combustion are sometimes referred to as “zero emission” cycles, because the CO2 stored is not a fraction removed from the flue gas stream (as in the cases of pre- and post-combustion capture) but the flue gas stream itself. It should be noted, however, that a certain fraction of the CO2 generated during combustion will inevitably end up in the condensed water. To warrant the label “zero emission” the water would thus have to be treated or disposed of appropriately. The technique is promising, but the initial air separation step demands a lot of energy.

Plants that produce ethanol by fermentation generate cool, essentially pure CO2 that can be pumped underground. Fermentation produces slightly less CO2 than ethanol by weight. World ethanol production in 2008 is expected to be about 16 billion gallons or 48 million tonnes.

An alternate method, which is under development, is chemical looping combustion (CLC). Chemical looping uses a metal oxide as a solid oxygen carrier. Metal oxide particles react with a solid, liquid or gaseous fuel in a fluidized bed combustor, producing solid metal particles and a mixture of carbon dioxide and water vapor. The water vapor is condensed, leaving pure carbon dioxide which can be sequestered. The solid metal particles are circulated to another fluidized bed where they react with air, producing heat and regenerating metal oxide particles that are recirculated to the fluidized bed combustor. A variant of chemical looping is calcium looping, which uses the alternate carbonation and then calcination of a CaO based carrier as a means of capturing CO2.

A few engineering proposals have been made for the more difficult task of capturing CO2 directly from the air, but work in this area is still in its infancy. Global Research Technologies demonstrated a pre-prototype in 2007. Capture costs are estimated to be higher than from point sources, but may be feasible for dealing with emissions from diffuse sources like automobiles and aircraft. The theoretically required energy for air capture is only slightly more than for capture from point sources. The additional costs come from the devices that use the natural air flow.

Removing CO2 from the atmosphere is a form of geoengineering by greenhouse gas remediation. Techniques of this type have received widespread media coverage as they offer the promise of a comprehensive solution to global warming if they can be coupled with effective carbon sequestration technologies.

It is more usual to see such techniques proposed for air capture, than for flue gas treatment. Carbon dioxide capture and storage is more commonly proposed on plants burning coal in oxygen extracted from the air, which means the CO2 is highly concentrated and no scrubbing process is necessary.

According to the Wallula Energy Resource Center in Washington state, by gasifying the coal, it is possible to capture approximately 65% of carbon dioxide embedded in coal and sequester them into the solid form.

Through Cement

Captures the CO2 from industrial smokestacks to be stored in cement during production. Five percent of the CO2 emissions are produced by manufacturing cement globally.

Process of turning carbon into cement: Seawater is the main resource for this process. Extract the NaCl from the other minerals to make salt water. Electrolyze and split the water and salt to make sodium hydroxide (lye) and hydrochloric acid. Neutralize the acid in a reaction with silicate rocks, producing sand and magnesium chloride, which can be used together or separately to melt ice on roads. Combining the highly alkaline sodium hydroxide solution with carbon dioxide streaming from a smokestack, trapping the carbon dioxide in the form of baking soda (sodium bicarbonate). Add the baking soda to seawater, which contains magnesium and calcium. The soda triggers a series of reactions, precipitating a magnesium and calcium carbonate that can be used as cement.

Some of the regulations made to greenhouse-gas emissions, such as carbon tax could eventually make this process profitable as well as environment friendly.

CO2 transport

After capture, the CO2 would have to be transported to suitable storage sites. This is done by pipeline, which is generally the cheapest form of transport. In 2008, there were approximately 5,800 km of CO2 pipelines in the United States, used to transport CO2 to oil production fields where the CO2 is injected in older fields to extract oil. The injection of CO2 to produce oil is generally called “Enhanced Oil Recovery” or EOR. In addition, there are several pilot programs in various stages to test the long-term storage of CO2 in non-oil producing geologic formations. These are discussed below.

COA conveyor belt system or ships could also be used. These methods are currently used for transporting CO2 for other applications.

According to the Congressional Research Service, “There are important unanswered questions about pipeline network requirements, economic regulation, utility cost recovery, regulatory classification of CO2 itself, and pipeline safety. Furthermore, because CO2 pipelines for enhanced oil recovery are already in use today, policy decisions affecting CO2 pipelines take on an urgency that is unrecognized by many. Federal classification of CO2 as both a commodity (by the Bureau of Land Management) and as a pollutant (by the Environmental Protection Agency) could potentially create an immediate conflict which may need to be addressed not only for the sake of future CCS implementation, but also to ensure consistency of future CCS with CO2 pipeline operations today.

CO2 storage (sequestration)

It has been suggested that this section be split into a new article. (Discuss)

Main article: CO2 sequestration

Various forms have been conceived for permanent storage of CO2. These forms include gaseous storage in various deep geological formations (including saline formations and exhausted gas fields), liquid storage in the ocean, and solid storage by reaction of CO2 with metal oxides to produce stable carbonates.

Geological storage

Also known as geo-sequestration, this method involves injecting carbon dioxide, generally in supercritical form, directly into underground geological formations. Oil fields, gas fields, saline formations, unminable coal seams, and saline-filled basalt formations have been suggested as storage sites. Various physical (e.g., highly impermeable caprock) and geochemical trapping mechanisms would prevent the CO2 from escaping to the surface.

CO2 is sometimes injected into declining oil fields to increase oil recovery. Approximately 30 to 50 million metric tonnes of CO2 are injected annually in the United States into declining oil fields.. This option is attractive because the geology of hydrocarbon reservoirs are generally well understood and storage costs may be partly offset by the sale of additional oil that is recovered. Disadvantages of old oil fields are their geographic distribution and their limited capacity, as well as that the subsequent burning of the additional oil so recovered will offset much or all of the reduction in CO2 emissions.

Unminable coal seams can be used to store CO2 because CO2 adsorbs to the surface of coal. However, the technical feasibility depends on the permeability of the coal bed. In the process of absorption the coal releases previously absorbed methane, and the methane can be recovered (enhanced coal bed methane recovery). The sale of the methane can be used to offset a portion of the cost of the CO2 storage. However, burning the resultant methane would produce CO2, which would negate some of the benefit of sequestering the original CO2.

Saline formations contain highly mineralized brines, and have so far been considered of no benefit to humans. Saline aquifers have been used for storage of chemical waste in a few cases. The main advantage of saline aquifers is their large potential storage volume and their common occurrence. The major disadvantage of saline aquifers is that relatively little is known about them, compared to oil fields. To keep the cost of storage acceptable the geophysical exploration may be limited, resulting in larger uncertainty about the aquifer structure. Unlike storage in oil fields or coal beds no side product will offset the storage cost. Leakage of CO2 back into the atmosphere may be a problem in saline aquifer storage. However, current research shows that several trapping mechanisms immobilize the CO2 underground, reducing the risk of leakage.

For well-selected, designed and managed geological storage sites, the IPCC estimates that CO2 could be trapped for millions of years, and the sites are likely to retain over 99% of the injected CO2 over 1,000 years.

In 2009 it was reported that scientists had mapped 6,000 square miles of rock formations in the U.S. that could be used to store 500 years’ worth of U.S. carbon dioxide emissions.

Ocean storage

Another proposed form of carbon storage is in the oceans. Several concepts have been proposed:

‘dissolution’ injects CO2 by ship or pipeline into the water column at depths of 1000 m or more, and the CO2 subsequently dissolves.

‘lake’ deposits CO2 directly onto the sea floor at depths greater than 3000 m, where CO2 is denser than water and is expected to form a ‘lake’ that would delay dissolution of CO2 into the environment.

convert the CO2 to bicarbonates (using limestone)

Store the CO2 in solid clathrate hydrates already existing on the ocean floor, or growing more solid clathrate.

The environmental effects of oceanic storage are generally negative, and poorly understood. Large concentrations of CO2 kills ocean organisms, but another problem is that dissolved CO2 would eventually equilibrate with the atmosphere, so the storage would not be permanent. Also, as part of the CO2 reacts with the water to form carbonic acid, H2CO3, the acidity of the ocean water increases. The resulting environmental effects on benthic life forms of the bathypelagic, abyssopelagic and hadopelagic zones are poorly understood. Even though life appears to be rather sparse in the deep ocean basins, energy and chemical effects in these deep basins could have far reaching implications. Much more work is needed here to define the extent of the potential problems.

The time it takes water in the deeper oceans to circulate to the surface has been estimated to be in the order of 1600 years, varying upon currents and other changing conditions. Costs for deep ocean disposal of liquid CO2 are estimated at US80/ton[vague]. (2002 USD) This figure covers the cost of sequestration at the power plant and naval transport to the disposal site.
The bicarbonate approach would reduce the pH effects and enhance the retention of CO2 in the ocean, but this would also increase the costs and other environmental effects.

An additional method of long term ocean based sequestration is to gather crop residue such as corn stalks or excess hay into large weighted bales of biomass and deposit it in the alluvial fan areas of the deep ocean basin. Dropping these residues in alluvial fans would cause the residues to be quickly buried in silt on the sea floor, sequestering the biomass for very long time spans. Alluvial fans exist in all of the world’s oceans and seas where river deltas fall off the edge of the continental shelf such as the Mississippi alluvial fan in the Gulf of Mexico and the Nile alluvial fan in the Mediterranean Sea.

Unfortunately, biomass and crop residues form an extremely important and valuable component of topsoil and sustainable agriculture. Removing them from the terrestrial equation is fraught with problems and would exacerbate nutrient depletion and increase dependence on chemical fertilizers and, therefore, petrochemicals, thus defeating the original intentions – to reduce Co2 in the atmosphere.

Mineral storage

Carbon sequestration by reacting naturally occurring Mg and Ca containing minerals with CO2 to form carbonates has many unique advantages. Most notabl[e] is the fact that carbonates have a lower energy state than CO2, which is why mineral carbonation is thermodynamically favorable and occurs naturally (e.g., the weathering of rock over geologic time periods). Secondly, the raw materials such as magnesium based minerals are abundant. Finally, the produced carbonates are unarguably stable and thus re-release of CO2 into the atmosphere is not an issue. However, conventional carbonation pathways are slow under ambient temperatures and pressures. The significant challenge being addressed by this effort is to identify an industrially and environmentally viable carbonation route that will allow mineral sequestration to be implemented with acceptable economics.
In this process, CO2 is exothermic ally reacted with abundantly available metal oxides which produces stable carbonates. This process occurs naturally over many years and is responsible for much of the surface limestone. The reaction rate can be made faster, for example by reacting at higher temperatures and/or pressures, or by pre-treatment of the minerals, although this method can require additional energy. The IPCC estimates that a power plant equipped with CCS using mineral storage will need 60-180% more energy than a power plant without CCS. (ch.7, p.   321, p.   330)
The following table lists principal metal oxides of Earth’s Crust. Theoretically up to 22% of this mineral mass is able to form carbonate s.

Earthen Oxide

Percent of Crust

Carbonate

Enthalpy change

(kJ/mol)

SiO2

59.71

Al2O3

15.41

CaO

4.90

CaCO3

-179

MgO

4.36

MgCO3

-117

Na2O

3.55

Na2CO3

FeO

3.52

FeCO3

K2O

2.80

K2CO3

Fe2O3

2.63

FeCO3

21.76

All Carbonates

Leakage

Cow killed by a 1986 natural carbon dioxide leak at Lake Nyos. The leakage killed 1,700 people and a large amount of livestock.

A major concern with CCS is whether leakage of stored CO2 will compromise CCS as a climate change mitigation option. For well-selected, designed and managed geological storage sites, IPCC estimates that risks are comparable to those associated with current hydrocarbon activity. CO2 could be trapped for millions of years, and although some leakage occurs upwards through the soil, well selected stores are likely to retain over 99% of the injected CO2 over 1000 years. Leakage through the injection pipe is a greater risk. Although the injection pipe is usually protected with Non-return valves (to prevent release on a power outtage), there is still a risk that the pipe itself could tear and leak due to the pressure. A small incident of this type of CO2 leakage was the Berkel and Rodenrijs incident in December 2008, where a modest release of greenhouse gas emissions resulted in the deaths of a small group of ducks. In order to measure accidental carbon releases more accurately and decrease the risk of fatalities through this type of leakage, the implementation of CO2 alert meters around the project perimeter has been proposed.

In 1986 a large leakage of naturally sequestered carbon dioxide rose from Lake Nyos in Cameroon and asphyxiated 1,700 people. While the carbon had been sequestered naturally, some point to the event as evidence for the potentially catastrophic effects of sequestering carbon.

For ocean storage, the retention of CO2 would depend on the depth; IPCC estimates 3085% would be retained after 500 years for depths 10003000 m. Mineral storage is not regarded as having any risks of leakage. The IPCC recommends that limits be set to the amount of leakage that can take place. This might rule out deep ocean storage as an option.

It should also be noted that at the conditions of the deeper oceans, (about 400 bar or 40 MPa, 280 K) waterO2(l) mixing is very low (where carbonate formation/acidification is the rate limiting step), but the formation of water-CO2 hydrates is favorable. (a kind of solid water cage that surrounds the CO2).
To further investigate the safety of CO2 sequestration, we can look into Norway’s Sleipner gas field, as it is the oldest plant that stores CO2 on an industrial scale. According to an environmental assessment of the gas field which was conducted after ten years of operation, the author affirmed that geosequestration of CO2 was the most definite form of permanent geological storage of CO2.
Available geological information shows absence of major tectonic events after the deposition of the Utsira formation [saline reservoir]. This implies that the geological environment is tectonically stable and a site suitable for carbon dioxide storage. The solubility trapping [is] the most permanent and secure form of geological storage.
In March 2009, StatoilHydro issued a study showing the slow spread of CO2 in the formation after more than 10 years operation.

Phase I of the Weyburn Project in Weyburn, Saskatchewan, Canada has determined that the likelihood of stored CO2 release is less than one percent in 5,000 years.

Detailed geological histories of basins are required and should utilise the multi billion dollar petroleum seismic data sets to decrease the risk associated with fault stability. On injection of CO2 into the earth there is a major pressure front that can break the seal and make faults unstable. The Gippsland Basin in Australia has a 3D-GEO seismic megavolume that consists of 30+ 3D seismic volumes that have been merged. Such datasets can image faults at a resolution of 15 metres over an area 100km by 100km. Mid 2010 the first full geological study of the Gippsland Basin will become openfile by 3D-GEO making CCS fault risk workflow available with the associated data that constrains it. In basins around the world such studies are not available and can only be bought at a price tag of greater than a million dollars.

CO2 re-use

Making Jet fuel by scrubbing CO2 from the air would allow aviation to continue in a low carbon economy

A potentially useful way of dealing with industrial sources of CO2 is to convert it into hydrocarbons where it can be stored or reused as fuel or to make plastics. There are a number of projects investigating this possibility. Currently, biofuels represent the other potentially carbon-neutral jet fuel available.

Carbon dioxide scrubbing variants exist based on potassium carbonate which can be used to create liquid fuels. Although the creation of fuel from atmospheric CO2 is not a geoengineering technique, nor does it actually function as greenhouse gas remediation, it nevertheless is potentially very useful in the creation of a low carbon economy, as transport fuels, especially aviation fuel, are currently hard to make other than by using fossil fuels. Whilst electric car technology is widely available, and can be used with renewable energy for carbon neutral driving, there are no electric jet airliners available, nor are there likely to be in the foreseeable future.[citation needed]

Single step methods: CO2 + H2 methanol

A proven process to produce a hydrocarbon is to make methanol. Methanol is rather easily synthesized from CO2 and H2 (See Green Methanol Synthesis). Based on this fact the idea of a methanol economy was born.

Single step methods: CO2 hydrocarbons

At the department of Industrial Chemistry and Engineering of Materials at the University of Messina, Italy there is a project to develop a system which works like a fuel-cell in reverse, whereby a catalyst is used that enables sunlight to split water into hydrogen ions and oxygen gas. The ions cross a membrane where they react with the CO2 to create hydrocarbons.

2 Step methods: CO2 CO Hydrocarbons

If CO2 is heated to 2400C, it splits into carbon monoxide and oxygen. The Fischer-Tropsch process can then be used to convert the CO into hydrocarbons. The required temperature can be achieved by using a chamber containing a mirror to focus sunlight on the gas. There are a couple of rival teams developing such chambers, at Solarec and at Sandia National Laboratories, both based in New Mexico. According to Sandia these chambers could provide enough fuel to power 100% of domestic vehicles using 5800 km, but unlike biofuels this would not take fertile land away from crops but would be land that is not being used for anything else. James May, the British TV presenter, visited a demonstration plant in a recent programme in his ‘Big Ideas’ series.

Example CCS projects

Industrial-scale storage

As of 2007, four industrial-scale storage projects are in operation. Sleipner is the oldest project (1996) and is located in the North Sea where Norway’s StatoilHydro strips carbon dioxide from natural gas with amine solvents and disposes of this carbon dioxide in a deep saline aquifer. The carbon dioxide is a waste product of the field’s natural gas production and the gas contains more (9% CO2) than is allowed into the natural gas distribution network. Storing it underground avoids this problem and saves Statoil hundreds of millions of euro in avoided carbon taxes. Since 1996, Sleipner has stored about one million tonnes CO2 a year. A second project in the Snhvit gas field in the Barents Sea stores 700,000 tonnes per year.

The Weyburn-Midale CO2 Project is currently the world’s largest carbon capture and storage project. Started in 2000, Weyburn is located on an oil reservoir discovered in 1954 in Weyburn, southeastern Saskatchewan, Canada. The CO2 for this project is captured at the Dakota Gasification Company plant in Beulah, North Dakota which has produced methane from coal for more than 30 years. At Weyburn, the CO2 will also be used for enhanced oil recovery with an injection rate of about 1.5 million tonnes per year. The first phase finished in 2004, and demonstrated that CO2 can be stored underground at the site safely and indefinitely. The second phase, expected to last until 2009, is investigating how the technology can be expanded on a larger scale.

The fourth site is In Salah, which like Sleipner and Snhvit is a natural gas reservoir located in In Salah, Algeria. The CO2 will be separated from the natural gas and re-injected into the subsurface at a rate of about 1.2 million tonnes per year.

Canada

In July 2008, the Government of Alberta announced a billion investment in three to five large-scalecarbon capture and storage projects. In 2009, letters of intent were signed with four project proponents and grant agreement negotiations are ongoing. It is expected the grant agreements will be signed in early 2010. The projects selected include a 240 kilometre pipeline;an in-situ coal gasification (ISCG) project ; an oil sands upgrader and expansion; and an electricity plant.

A major Canadian initiative called the Alberta Saline Aquifer Project (ASAP) is a consortium of 38 industry participants that are developing a pilot site for commercial scale carbon capture and storage in a saline aquifer. The initial pilot will sequester 1,000 tonnes per day in 2010, while the commercial phase could see 10,000 tonnes per day as soon as 2015.

Another Canadian initiative called the Integrated CO2 Network (ICO2N) is a proposed system for the capture, transport and storage of carbon dioxide (CO2). ICO2N members represent a group of industry participants providing a framework for carbon capture and storage development in Canada.

Netherlands

In the Netherlands, a 68 MW oxyfuel plant (“Zero Emission Power Plant”) was being planned to be operational in 2009. However, this project was later cancelled.

United States

In October 2007, the Bureau of Economic Geology at The University of Texas at Austin received a 10-year, million subcontract to conduct the first intensively monitored, long-term project in the United States studying the feasibility of injecting a large volume of CO2 for underground storage. The project is a research program of the Southeast Regional Carbon Sequestration Partnership (SECARB), funded by the National Energy Technology Laboratory of the U.S. Department of Energy (DOE). The SECARB partnership will demonstrate CO2 injection rate and storage capacity in the Tuscaloosa-Woodbine geologic system that stretches from Texas to Florida. The region has the potential to store more than 200 billion tons[vague] of CO2 from major point sources in the region, equal to about 33 years of U.S. emissions overall at present rates. Beginning in fall 2007, the project will inject CO2 at the rate of one million tons[vague] per year, for up to 1.5 years, into brine up to 10,000 feet (3,000 m) below the land surface near the Cranfield oil field about 15 miles (25 km) east of Natchez, Mississippi. Experimental equipment will measure the ability of the subsurface to accept and retain CO2.

Currently, the United States government has approved the construction of what is touted as the world’s first CCS power plant, FutureGen. On January 29, 2008, however, the Department of Energy announced it was recasting the FutureGen project and on June 24 2008, DoE published a funding opportunity announcement seeking proposals for an IGCC project, with integrated CCS, of at least 250MW..

Examples of carbon sequestration at an existing US coal plant can be found at utility company Luminant’s pilot version at its Big Brown Steam Electric Station in Fairfield, Texas. This system is converting carbon from smokestacks into baking soda. Skyonic plans to circumvent storage problems of liquid CO2 by storing baking soda in mines, landfills, or simply to be sold as industrial or food grade baking soda. Green Fuel Technologies Corp. is piloting and implementing algae based carbon capture, circumventing storage issues by then converting algae into fuel or feed.

In November 2008, the DOE awarded a .9 million, eight-year grant to a research partnership headed by Montana State University to demonstrate that underground geologic formations an store huge volumes of carbon dioxide economically, safely and permanently. Researchers under the Big Sky Regional Carbon Sequestration Project plan to inject up to one million tons of CO2 into sandstone beneath southwestern Wyoming.

In the United States, four different synthetic fuel projects are moving forward which have publicly announced plans to incorporate carbon capture and storage.

American Clean Coal Fuels, in their Illinois Clean Fuels project, is developing a 30,000 Barrel Per Day Biomass and Coal to Liquids project in Oakland Illinois, which will market the CO2 created at the plant for Enhanced Oil Recovery applications. The project is expected to come online in mid-2013. By combining sequestration and biomass feedstocks, the ICF project will achieve dramatic reductions in the lifecycle carbon footprint of the fuels they produce. If sufficient biomass is used, the plant should have the capability to go life cycle carbon negative (meaning that effectively, for each gallon of their fuel that is used, carbon is pulled out of the air, and put into the ground.)
Baard Energy, in their Ohio River Clean Fuels project, are developing a 53,000 BPD Coal and Biomass to Liquids project, which has announced plans to market the plant CO2 for Enhanced Oil Recovery.

Rentech is developing a 29,600 barrel per day coal and biomass to liquids plant in Natchez Mississippi which will market the plant CO2 for enhanced oil recovery. The first phase of the project is expected in 2011.

DKRW is developing a 15,000-20,000 Barrel Per Day coal to liquids plant in Medicine Bow Wyoming, which will market it plant CO2 for enhanced oil recovery. The project is expected to begin operation in 2013.

The Basin Electric Power Cooperative in North Dakota captures half of its CO2.
In October of 2009, the U.S. Department of Energy awarded twelve Industrial Carbon Capture and Storage (ICCS) projects to conduct a Phase 1 feasibility study. The DOE plans to select 3 to 4 of those projects to proceed into Phase 2 design and construction with operational startup to occur by 2015. Battelle Memorial Institute, Pacific Northwest Division, Boise, Inc., and Fluor Corporation are studying a CCS system for capture and storage of CO2 emissions associated with the pulp and paper production industry. The site of the study is the Boise White Paper L.L.C. paper mill located near the township of Wallula in Southeastern Washington State. The plant generates approximately 1.2 MMT of CO2 annually from a set of three recovery boilers that are mainly fired with black liquor, a recycled byproduct formed during the pulping of wood for papermaking. Fluor Corporation will design a customized version of their Econamine Plus carbon capture technology. The Fluor system also will be designed to remove residual quantities of remnant air pollutants from stack gases as part of the CO2 capture process. Battelle is leading preparation of an Environmental Information Volume (EIV) for the entire project including geologic storage of the captured CO2 in deep flood basalt formations that exist in the greater region. The EIV will describe the necessary site characterization work, sequestration system infrastructure, and monitoring program to support permanent sequestration of the CO2 captured at the plant.

In addition to individual carbon capture and sequestration projects, there are a number of U.S. programs designed to research, develop and deploy CCS technologies on a broad scale. These include the National Energy Technology Laboratory (NETL) Carbon Sequestration Program, regional carbon sequestration partnerships and the Carbon Sequestration Leadership Forum (CSLF).

United Kingdom

The United Kingdom Government has launched a tender process for a CCS demonstration project. The project will use post-combustion technology on coal fired power generation at 300-400 MW or equivalent. The project aims to be operational by 2014 . The Government announced in June 2008 that four companies had prequalified for the following stages of the competition, BP Alternative Energy International Limited, EON UK Plc, Peel Power Limited and Scottish Power Generation Limited . BP have subsequently withdrawn from the competition claiming it could not find a power generator partner and RWE npower is seeking a judicial review of the process after it did not qualify .

Doosan Babcock will modify a Test Rig at Renfrew in Scotland to accommodate Oxyfuel firing on pulverised coal with recycled flue gas and demonstrate the operation of a full scale 40 MW burner for use in coal-fired boilers. Sponsors of the project include the UK Department for Business Enterprise and Regulatory Reform (BERR) and a group of industrial sponsors and university partners comprising Scottish and Southern Energy (Prime Sponsor), E.ON UK PLC, Drax Power Limited, ScottishPower, EDF Energy, Dong Energy Generation, Air Products Plc (Sponsors), and Imperial College and University of Nottingham (University Partners).

China

In Beijing, as of 2009, one major power plant is capturing and re-selling a small fraction of its CO2 emissions.
Germany

The German industrial area of Schwarze Pumpe, about 4 km south of the city of Spremberg, is home to the world’s first CCS coal plant. The mini pilot plant is run by an Alstom-built oxy-fuel boiler and is also equipped with a flue gas cleaning facility to remove fly ash and sulphur dioxide. The Swedish company Vattenfall AB invested some 70 million Euros in the two year project which began operation September 9, 2008. The power plant, which is rated at 30-megawatts, is a pilot project to serve as a prototype for future full-scale power plants. 240 tonnes a day of CO2 are being trucked 350 kilometers (210 miles) where it will be injected into an empty gas field. Germany’s BUND group called it a “fig leaf”. For each tonne of coal burned, 3.6 tonnes of carbon dioxide is produced.

German utility RWE operates a pilot-scale CO2 scrubber at the lignite-fired Niederauem power station built in cooperation with BASF (supplier of detergent) and Linde (engineering).

Australia

Main article: Carbon capture and storage in Australia

The Federal Resources and Energy Minister Martin Ferguson opened the first geosequestration project in the southern hemisphere in April 2008. The demonstration plant is near Nirranda South in South Western Victoria. (3519 14908 / 35.31S 149.14E / -35.31; 149.14) The plant is owned by the Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC). It is funded jointly by government and industry. It aims to store up to 100,000 tonnes of carbon dioxide extracted from a gas well. Carbon dioxide-rich gas is extracted from a reservoir via a well, compressed and piped 2.25 km to a new well. There the gas is injected into a depleted natural gas reservoir approximately two kilometers below the surface. The Otway Project is a research and demonstration project, focused on comprehensive monitoring and verification .

This plant does not propose to capture CO2 from coal fired power generation. There is no project anywhere in the world storing CO2 stripped from the products of combustion of coal burnt for electricity generation at coal fired power stations although work currently being carried out by the New South Wales government and private industry intends to have a working pilot plant in operation by 2013.

Limitations of CCS for power stations

One limitation of CCS is its energy penalty. The technology is expected to use between 10 and 40% of the energy produced by a power station. Wide scale adoption of CCS may erase efficiency gains of the last 50 years, and increase resource consumption by one third. However even taking the fuel penalty into account overall levels of CO2 abatement remain high, at approximately 80-90% compared to a plant without CCS. It is theoretically possible for CCS, when combined with combustion of biomass, to result in net negative emissions, but this is not currently feasible given the lack of development of CCS technologies and the limitations of biomass production.

A second concern regards the permanence of storage schemes. It is claimed that safe and permanent storage of CO2 cannot be guaranteed and that even very low leakage rates could undermine any climate mitigation effect. However, the IPCC conclude that the proportion of CO2 retained in appropriately selected and managed geological reservoirs is very likely to exceed 99% over 100 years and is likely to exceed 99% over 1,000 years.

Finally there is the issue of cost. Greenpeace claim that CCS could lead to a doubling of plant costs. However CCS may still be economically attractive in comparison to other forms of low carbon electricity generation. It is also claimed by opponents to CCS that money spent on CCS will divert investments away from other solutions to climate change.

Cost of CCS

Although the processes involved in CCS have been demonstrated in other industrial applications, no commercial scale projects which integrate these processes exist, the costs therefore are somewhat uncertain. However, some recent credible estimates indicate that a carbon price of US per US-ton is required to make capture and storage competitive, corresponding to an increase in electricity prices of about US 6c per kWh (based on typical coal fired power plant emissions of 2.13 pounds CO2 per kWh). This would double the typical US industrial electricity price (now at around 6c per kWh) and increase the typical retail residential electricity price by about 50% (assuming 100% of power is from coal, which may not necessarily be the case, as this varies from state to state). However similar (approximate) price increases would likely be expected in coal dependent countries such as Australia, because the capture technology and chemistry, transport and injection costs from such power plants would not, in an overall sense, vary significantly from country to country.

The reasons that CCS is expected to cause such power price increases are several. Firstly, the increased energy requirements of capturing and compressing CO2 significantly raise the operating costs of CCS-equipped power plants. In addition there is added investment or capital costs. The process would increase the fuel requirement of a plant with CCS by about 25% for a coal-fired plant and about 15% for a gas-fired plant. The cost of this extra fuel, as well as storage and other system costs are estimated to increase the costs of energy from a power plant with CCS by 30-60%, depending on the specific circumstances. Pre-commercial CCS demonstration projects are likely to be more expensive than mature CCS technology, the total additional costs of an early large scale CCS demonstration project are estimated to be 0.5-1.1bn per project over the project lifetime.

An estimate of costs of energy with and without CCS (2002 US$ per kWh)

Natural gas combined cycle

Pulverized coal

Integrated gasification combined cycle

Without capture (reference plant)

0.03 – 0.05

0.04 – 0.05

0.04 – 0.06

With capture and geological storage

0.04 – 0.08

0.06 – 0.10

0.06 – 0.09

(Cost of capture and geological storage)

0.01 – 0.03

0.02 – 0.05

0.02 – 0.03

With capture and Enhanced oil recovery

0.04 – 0.07

0.05 – 0.08

0.04 – 0.08

All costs refer to costs for energy from newly built, large-scale plants. Natural gas combined cycle costs are based on natural gas prices of US.804.40 per GJ (LHV based). Energy costs for PC and IGCC are based on bituminous coal costs of US.001.50 per GJ LHV. Note that the costs are very dependent on fuel prices (which change continuously), in addition to other factors such as capital costs. Also note that for EOR, the savings are greater for higher oil prices. Current gas and oil prices are substantially higher than the figures used here. All figures in the table are from Table 8.3a in [IPCC, 2005].

The cost of CCS depends on the cost of capture and storage which vary according to the method used. Geological storage in saline formations or depleted oil or gas fields typically cost US.508.00 per tonne of CO2 injected, plus an additional US.100.30 for monitoring costs. However, when storage is combined with enhanced oil recovery to extract extra oil from an oil field, the storage could yield net benefits of US16 per tonne of CO2 injected (based on 2003 oil prices). This would likely negate some of the effect of the carbon capture when the oil was burnt as fuel. However, as the table above shows, the benefits do not outweigh the extra costs of capture.

Comparisons of CCS with other energy sources can be found in wind energy, solar energy, and Economics of new nuclear power plants.

Environmental effects

This section needs additional citations for verification.

Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (January 2009)

The theoretical merit of CCS systems is the reduction of CO2 emissions by up to 90%, depending on plant type. Generally, environmental effects from use of CCS arise during power production, CO2 capture, transport and storage. Issues relating to storage are discussed in those sections.

Additional energy is required for CO2 capture, and this means that substantially more fuel has to be used, depending on the plant type. For new supercritical pulverized coal (PC) plants using current technology, the extra energy requirements range from 24-40%, while for natural gas combined cycle (NGCC) plants the range is 11-22% and for coal-based gasification combined cycle (IGCC) systems it is 14-25% [IPCC, 2005]. Obviously, fuel use and environmental problems arising from mining and extraction of coal or gas increase accordingly. Plants equipped with flue gas desulfurization (FGD) systems for SO2 control require proportionally greater amounts of limestone and systems equipped with SCR systems for NOX require proportionally greater amounts of ammonia.

IPCC has provided estimates of air emissions from various CCS plant designs (see table below). While CO2 is drastically reduced (though never completely captured), emissions of air pollutants increase significantly, generally due to the energy penalty of capture. Hence, the use of CCS entails a reduction in air quality.

Emissions to air from plants with CCS (kg/(MWh))

Natural gas combined cycle

Pulverized coal

Integrated gasification combined cycle

CO2

43 (-89%)

107 (87%)

97 (88%)

NOX

0.11 (+22%)

0.77 (+31%)

0.1 (+11%)

SOX

-

0.001 (99.7%)

0.33 (+17.9%)

Ammonia

0.002 (before: 0)

0.23 (+2200%)

-

Based on Table 3.5 in [IPCC, 2005]. Between brackets the increase or decrease compared to a similar plant without CCS.

See also

Energy portal

Sustainable development portal

Biochar

Bio-energy with carbon capture and storage

Carbon cycle re-balancing

Carbon sink

Chemical looping combustion

CO2 sequestration

FutureGen

Limnic eruption A possible hazard resulting from a large scale release of CO2

Low-carbon economy

Mitigation of global warming

Post combustion capture

Relative cost of electricity generated by different sources

Quaternary recovery

Solvay process industrial process used in the production of soda ash (sodium carbonate)

Terra preta

IEA Greenhouse Gas R&D Programme

Notes

^ Weyburn doubles up as EOR and large-scale, commercial CCS operation.[dead link]

^ a b c d e f g h i [IPCC, 2005] IPCC special report on Carbon Dioxide Capture and Storage. Prepared by working group III of the Intergovernmental Panel on Climate Change. Metz, B., O.Davidson, H. C. de Coninck, M. Loos, and L.A. Meyer (eds.). Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 442 pp. Available in full at www.ipcc.ch (PDF – 22.8MB)

^ Coal Utilization Research Council (CURC) Technology Roadmap, 2005

^ “NETL 2007 Carbon Sequestration Atlas”, 2007

^ Gasification Body<! — Bot generated title –>

^ integrated gasification combined cycle for carbon capture storage Claverton Energy Group conference 24th October Bath.

^ Energy Futures Laboratory and the Grantham Institute for Climate Change

^ Winner: Restoring Coal’s Sheen, William Sweet, IEEE Spectrum, January 2008. Available in full at
^ First Successful Demonstration of Carbon Dioxide Air Capture Technology Achieved by Columbia University Scientist and Private Company

^ http://wpweb2.tepper.cmu.edu/ceic/theses/Joshuah_Stolaroff_PhD_Thesis_2006.pdf

^ Paul W. Parfomak and Peter Folger, RS Report for Congress: Carbon Dioxide (CO2) Pipelines for Carbon Sequestration: Emerging Policy Issues, Updated January 17, 2008 (Order Code RL33971) (http://assets.opencrs.com/rpts/RL33971_20080117.pdf)

^ Adam Vann and Paul W. Parfomak, “CRS Report for Congress: Regulation of Carbon Dioxide (CO2) Sequestration Pipelines: Jurisdictional Issues,” Updated April 15, 2008 (Order Code RL34307) (http://ncseonline.org/nle/crs/abstract.cfm?NLEid=2051) (reviewing federal jurisdictional issues related to CO2 pipelines and reviewing agency jurisdictional determinations under the Interstate Commerce Act and the Natural Gas Act

^ IPCC “Special Report on Carbon Capture and Storage, pp. 181 and 203 (Chapter 5, “Underground Geological Storage”)

^ Rocks Found That Could Store Greenhouse Gas, Live Science, March 9, 2009

^ “Warning signs on the ocean floor: China and India Exploit Icy Energy Reserves: Part 2: Can a Potential Curse Be Transformed into a Blessing?”

^ “The great submarine burp”

^ “Deep-Sea Disposal Of Fossil-Fuel CO2: First Ocean Observations”

^ Goldberg, Chen, Oonnor, Walters, and Ziock. (1998). “CO2 Mineral Sequestration Studies in US”, National Energy Technology Laboratory. Retrieved June 7th, 2007 from: http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/6c1.pdf

^ Natuurwetenschap & Techniek; April 2009; CCS leakage risks

^ Pentland, William. “The Carbon Conundrum.” Forbes.com. 6 October 2008. http://www.forbes.com/2008/10/06/carbon-sequestration-biz-energy-cx_wp_1007capture.html

^ “Norway: StatoilHydro’s Sleipner carbon capture and storage project proceeding successfully”. Energy-pedia. 8 March 2009. http://www.energy-pedia.com/article.aspx?articleid=134204. Retrieved 19 December 2009. 

^ Allan Casey, Carbon Cemetery, Canadian Geographic Magazine, Jan/Feb 2008, p. 61

^ New Scientist No2645, 1st March 2008.

^ http://www.nytimes.com/2008/02/19/science/19carb.html?_r=1

^ David Biello: Scientific American Sept 16, 2006

^ a b Allan Casey, ibid, p. 63

^ dakotagas.com – originally called Great Plains Coal Gasification plant

^ President Carter loan guarantee statement, 1980

^ Allan Casey, ibid, p. 59

^ “Demonstration project The Netherlands: Zero Emission Power Plant”

^ “Bureau of Economic Geology Receives Million for First Large-Scale U.S. Test Storing Carbon Dioxide Underground”
^ DoE Funding opportunity announcement “Restructured Futuregen” http://fossil.energy.gov/programs/powersystems/futuregen/Restructured_FutureGen_Final_FOA__6-24-0.pdf

^ “SU receives .9 million carbon sequestration”, Bozeman Daily Chronicle, 2008-11-18. Retrieved on 2008-18-11.

^ per company website 4-9-2009

^ http://fossil.energy.gov/recovery/projects/industrial_ccs.html

^ NETL Carbon Sequestration NETL Web site. Retrieved on 2008-21-11.

^ http://www.berr.gov.uk/files/file42478.pdf

^ http://www.berr.gov.uk/whatwedo/energy/sources/sustainable/ccs/ccs-demo/page40961.html

^ http://nds.coi.gov.uk/environment/fullDetail.asp?ReleaseID=372398&NewsAreaID=2&NavigatedFromDepartment=True

^ http://www.rsc.org/chemistryworld/News/2008/November/10110802.asp

^ http://www.pandct.com/media/shownews.asp?ID=17013

^ China Puts Fizz In Bid To Reduce Carbon Emissions

^ Germany leads ‘clean coal’ pilot, BBC News, 2008-09-03, http://news.bbc.co.uk/2/hi/science/nature/7584151.stm 

^ Access all areas: Schwarze Pumpe, BBC News, 2008-09-03, http://news.bbc.co.uk/2/hi/science/nature/7584155.stm 

^ ‘Emissions-free’ power plant pilot fires up in Germany

^ Press Release: BASF, RWE Power and Linde are developing new processes for CO2 capture in coal-fired power plants on www.basf.com

^ “First carbon storage plant launched”

^ “Seeking clean coal science ‘only option’”

^ “CO2CRC Otway Project overview”

^ a b c Rochon, Emily et al. False Hope: Why carbon capture and storage won save the climate Greenpeace, May 2008, p.5.

^ http://www.ipcc.ch/pdf/special-reports/srccs/srccs_wholereport.pdf

^ Biomass with capture: negative emissions within social and environmental constraints: an editorial comment, James S. Rhodes and David W. Keith http://www.springerlink.com/content/f14824w8v6757nv6/

^ 20244 DTI Energy Review_AW

^ Science, 27 February 2009, Vol 323, p 1158, timulus Gives DOE Billions for Carbon-Capture Project

^ CCS – Assessing the Economics, Mckinsey, 2008 http://www.mckinsey.com/clientservice/ccsi/pdf/CCS_Assessing_the_Economics.pdf

References

Environmental Challenges and Greenhouse Gas Control for Fossil Fuel Utilization in the 21st Century. Edited by M. Mercedes Maroto-Valer et al., Kluwer Academic/Plenum Publishers, New York, 2002: “Sequestration of Carbon Dioxide by Ocean Fertilization”, pg 122. By M. Markels, Jr. and R.T. Barber.

Nobel Intent: Carbon Dioxide Lakes in the Deep Ocean, September 19, 2006 @ 11:08AM – posted by John Timmer http://arstechnica.com/journals/science.ars/2006/9/19/5341

Solomon, Semere. (July, 2006). Carbon Dioxide Storage: Geological Security and Environmental Issues Case Study on the Sleipner Gas Field in Norway. The Bellona Foundation. Retrieved November 7, 2006, from http://bellona.no/filearchive/fil_Paper_Solomon_-_CO2_Storage.pdf

ICO2N – The Vision
Stephens, J. 2006. Growing interest in carbon capture and storage (CCS) for climate change mitigation. Sustainability: Science, Practice, & Policy 2(2):413. http://ejournal.nbii.org/archives/vol2iss2/0604-016.stephens.html Published online November 29, 2006

The Economist (2009) The illusion of clean coal – Climate change, Mar 5th 2009, From The Economist print edition, section

The Economist (2009) Trouble in store – Carbon capture and storage, Mar 5th 2009, From The Economist print edition

Bullis, K. (2009, October). Capturing carbon dioxide through cement production. Technology Review, 112(5), Retrieved from http://www.technologyreview.com/TR35/Profile.aspx?TRID=804

Biello, D. (2008, August 7). Cement from co2: a concrete cure for global warming?. Scientific American, Retrieved from http://www.scientificamerican.com/article.cfm?id=cement-from-carbon-dioxide

External links

CO2 Capture Project Global partnership of seven major energy companies working on next-generation CCS technology

3D-GEO CCS/CGS: Multiple Studies have been completed and are on-going. Gippsland Basin, Perth Basin, Otway Basin, Cooper Basin, with multiple Asian Projects completed. Regional Studies completed over the last 10 years for CGS. Currently we have multiple in-house basin studies available, including seismic megavolumes.

In Salah Gas CO2 Storage Project Joint venture which has overseen capture and storage of one million tonnes per year of CO2 from its natural gas refinery

Zero Emissions Platform European Technology Platform for Zero Emission Fossil Fuel Power Plants

UCL Carbon Capture Legal Programme Free online source of CCS Legal and Policy information.

Intergovernmental Panel on Climate Change IPCC Special Report on Carbon Dioxide Capture and Storage (CCS).

Scientific Facts on CO2 Capture and Storage, a peer-reviewed summary of the IPCC Special Report on CCS.

Carbon Sequestration News Recent news articles on CO2 capture and storage.

CO2NET – Carbon Dioxide Knowledge Sharing Network Extensive news and reports on CO2 capture and storage events, projects and activities.

Allianz Knowledge Site Short movie about Schwarze Pumpe, the world’s first ccs pilot coal power plant.

Stanford University Collection of recent news articles on CO2 capture and storage.

Paving the Legal Path for Carbon Sequestration from Coal 2009 journal article on CCS legal questions.

DOE Fossil Energy Department of Energy programs in carbon dioxide capture and storage.

2007 NETL Carbon Sequestration Atlas

Online discussion on pipeline materials for supercritical saturated CO2

Carbon Sequestration News, Events, Research and People Carbon Capture and Storage Information Hub

The Global Carbon Capture and Storage Institute The Global Carbon Capture and Storage Institute (Global CCS Institute)

“Burying Climate Change: Efforts Begin to Sequester Carbon Dioxide from Power Plants”, West Virginia hosts the world’s first power plant to inject some of its CO2 emissions underground for permanent storage, Scientific American, September 22, 2009.

“What does it take to demonstrate CCS?” by Bjrn-Erik Haugan

Mitigate your Carbon emissions by planting trees Green EU Initiative

A Guide To Carbon Capture And Storage: Can carbon capture and storage save the climate from the consequences of fossil fuel burning?

Algae based CCS, CO2 Capture with Algae

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Indycar Series to Use Pure Ethanol for 2007 Season

Alternative fuels have been receiving much attention lately due to the increasing awareness of global warming and the dedication of the U.S. government to reduce dependency on foreign oil. Several companies in the alternative fuel industry have been making great leap in the development of fuels which can be substituted for gasoline.

Biodiesel is one of the alternative fuels being developed along with ethanol. Currently, there are already cars and vehicles on the road which run on fuel composed of ethanol and gasoline. The use of ethanol is widely supported by the government since it is proven to reduce greenhouse gas emissions.

Recently, ethanol, as a substitute for gasoline, found a new ally in the form of the IndyCar Series. The open-wheel racing series highlighted by the famous Indianapolis 500 will use pure ethanol as its fuel for the upcoming season.

The series will be making motor sports history when it opens the season with the XM Satellite Radio Indy 300 on March 24 at Homestead-Miami Speedway. The racing series will be the first ever motor sport which will use pure ethanol as fuel for the supplied 3.5 liter Honda Indy V8 engines. The sport will be setting the record for a racing series to use a renewable fuel which is a step towards the “Greening of Racing”.

Ethanol will replace methanol which has served as the fuel of choice for the series for over forty years. Tony Kanaan, the series’ champion in 2004, has this to say about the use of ethanol: “The IndyCar Series jump to ethanol has been great. We are definitely on the right path with ethanol. There is more power with the new (3.5-liter Honda Indy V-8) engine. It runs clean and it is better for the environment. So it is a win-win situation, and that is great for the series. Ethanol is another alternative to gasoline. If we can show that the IndyCar Series cars can run ethanol, then it is good for everyone’s street cars.”

The use of ethanol in vehicles such as those used in racing is a good choice since the fuel possesses characteristics which suit the need for more power of these race cars. Ethanol has a higher octane rating than methanol. This means that ethanol resists premature detonation better than the previously used methanol.

Premature detonation reduces the amount of power generated per volume of fuel. Knocking also increases the fuel consumption since the engine needs to compensate for the loss of power by providing more fuel to be burned.

In cases of high performance vehicles, the 113 octane rating of ethanol is more desirable compared to the 107 octane rating of methanol. The fact that ethanol comes from agricultural products which are renewable adds to the appeal of the fuel as a substitute for gasoline and in the case of racing, methanol.

For all the power provided by ethanol, it produces fewer emissions than either gasoline or methanol. The cool looking cars of the series, although without headlights which makes them not applicable to have that Lund look of high quality headlights, are driven up to speeds of more than 230 miles per hour surely needed that extra power from ethanol.

The clean efficiency of ethanol has really received a good ally in the form of the series. The cars will have more power while producing less harmful emissions. And this means that both popular racing series, the alternative fuel industry, and the environment as well as the public will benefit from this action from IndyCar.

Find More Methanol Fuel Articles

Twincharging – Concept and Example Application

The first time I ever heard of twin charging (using both a turbocharger and a supercharger on the same motor) was probably back in year 2000. At that time I was very interested in performance for the Toyota Celica and naturally I also read a lot about its sister cars (that shared some of the same engines) such as the Camry and the MR2.

One of the most interesting aftermarket parts I ran across at the time was the HKS turbo kit for the 4AGZE powered 1st generation mr2. The 4agze (for those that are not familiar with Toyota engines) is a peppy 170 horsepower 1.6 liter engine powered by the Toyota SC-12 roots type supercharger. On this car Toyota used an electromagnetically clutched supercharger that could be disabled during low power requirements such as cruising, and engaged when the user demands it.

One of the most important parts of the HKS kit is the bypass valve. This valve was used to direct air from the supercharger to the engine at lower rpm/flow points. Once the rpm’s rise, and the engine starts to demand more air, and the turbocharger is fully spooled, the valve switches over gradually till the turbocharger alone is feeding the engine while the supercharger is completely bypassed. The twin-charged MR2′s were rumored to break the 300hp mark in some cases, depending on the final boost level and the supporting modifications, and this level of power for a 1.6 litre motor at the time was quiet astounding.

The theory behind this kind of system is to use a small positive displacement (roots style) supercharger. Supercharger performance efficiency is typically at its highest at lower engine and supercharger rpm’s (for example from idle to 4000 rpm’s). Above 4000 rpm’s the supercharger’s performance and efficiency starts to drop, the horsepower required to drive it starts to rise exponentially, and the air temperature coming out of the supercharger starts to rise dramatically limiting performance.

On the other hand, using a generously sized turbocharger will allow us to feed the engine efficiently with cooler air (than that from an overworked supercharger) and maintain high rpm performance. The problem with using a larger turbocharger is that a generously sized turbocharger typically doesn’t spool before 3000 to 4000 rpm’s giving us a limited power band and thus providing no performance boost at lower rpm’s.

The idea of twin charging is to use both a supercharger and a turbocharger to have each charger do what it does best, have the supercharger boost the motor for low end torque, and as it runs out of steam, the turbocharger comes online to carry us through to redline.

There are three aspects to these types of systems that make them prohibitive to most tuners:

1. Cost and complexity: Having a complete supercharger system as well as a complete turbocharger system on the same vehicle is a lot of money to spend and a lot of parts to deal with and diagnose in case something does go wrong.

2. The bypass valve used to bypass the supercharger (and yet hold in all the air pressure coming from the turbocharger) as well as being able to control this valve electrically or mechanically requires a custom made one off valve that isn’t quite available off the shelf. Although as I write this it seems possible to find a large sized dual chamber bypass valve plumbed to operate on the differential pressure between the turbo outlet and the supercharger outlet to switchover once the turbocharger pressure = the supercharger pressure + the tension of the bypass valve opening mechanism.

3. Since we are using two different types of chargers with two different efficiency maps, it can get very complicated to figure out how to tune the motor (especially with much simpler fuel injection systems that were used at the time) because the air density can vary dramatically at the same rpm point and pressure level depending on which charger is feeding air to the motor and at what proportion. This is also where the HKS turbo kit for the 4agze was at its weakest, namely at smoothing the transition point fueling between the supercharger to turbocharger switchover.

One of the things that has changed over the last 10 years is the availability (and proliferation of knowledge) about available alternative fuels or octane boosters. Two such options are:

1- E85 fuel which is comprised of 85% Ethanol which has an octane rating of about 100 to 105 octane vs the typical 87 to 93 octane pump gasoline.

2- Water / methanol injection systems that can be used either as supplemental fueling system (based on the methanol content which carries an octane rating of 110 octane or higher) or can be used for in cylinder cooling when the water vapor injected with the methanol transforms into steam inside the combustion chamber, thus extracting lots heat out of the combustion chamber, and thus slowing down the speed of travel of the combustion flame front simulating the effects similar to those of a higher octane gasoline.

With the availability of these octane increasing or octane simulating concoctions, it has become more accessible of recent for the performance enthusiast to build a different type of twin charger system that does not require a bypass valve.

In this type of system the supercharger outlet is routed to feed the turbocharger inlet or vice versa. Rather than either the supercharger or the turbocharger feeding the engine individually (in parallel operation) and switching between the two, we are now using a two stage compression system where one stage is the factory supercharger, and the 2nd stage is an aftermarket turbocharger system.

The net result of the two compressors is a compounding of pressure ratios. For example if the turbocharger waste-gate opening spring is set to a setting of 7psi of pressure above atmosphere (which is a pressure ratio of 1.5 given that 1 atmosphere is about 14.7 psig); and if the supercharger is mechanically geared to flow 50% more than the engine (for positive displacement roots style superchargers) at any rpm, thus having an identical 7psi boost setting or a pressure ratio of 1.5; then the resultant pressure ratio of the system combined is :

PR total = PR turbo * PR supercharger = a pressure ratio of 2.25

A pressure ratio of 2.25 is equivalent to 18.4 psi of boost (not 14psi expected by adding the two stages together).

So anyway, how does this relate to octane requirements ?

If the turbocharger is feeding the supercharger for example, and the turbocharger is ingesting fresh air at ambient air temperatures (T1), then:

1- The air exiting the turbocharger will be at a temperature T2, higher than the ambient air temperature (T1) by about 60-80*C depending on the exact turbocharger, and where we are on the turbocharger compressor and efficiency map.

2- The air entering the supercharger will enter at a temperature T2 ~=T1+60 and exit at a temperature T3 which is higher than T2 by about another 60-80*C depending on the exact specifications of the supercharger.

3- If we had an intercooler after the supercharger, then the air entering the intercooler will be at 120 to 160*C above ambient temperatures which is a lot of heat for the intercooler to attempt to shed in the short amount of time that the air passes through the intercooler core.

4- If we have no post supercharger intercooler (which is common on cars where the supercharger is packaged into the intake manifold of the car), then the air entering the engine will be at some 120 to 160*C above ambient.

5- This excessively heated air not only reduces power output (By about 1 horsepower for every 13*C) but it also increases the probability of the air fuel mixture automatically igniting in the motor pre-maturely before the spark plug has fired, and if this pre-mature ignition occurs early enough to catch the piston significantly far away from top dead center, then the battling flame front pushing the piston downwards, and the inertia of the system (and force of other firing cylinders rotating this piston via the crankshaft) pushing the piston upwards will cause extremely high pressures and a temperature rise on the surface of the piston ultimately damaging it and possibly damaging other parts of the motor as well.

For these reasons (pressure compounding, and combined temperature rise) sequential charging has seen very little application in the past. The use of a higher octane fuel by definition means that the air fuel mixture is more resilient to auto-ignition and detonation. Furthermore, in the event of a pre-mature ignition, the higher octane fuel creates a slower traveling flame front which gives the piston more time to travel upwards in the cylinder bore (Closer to top dead center) before meeting the flame front and this reduces the time that the piston surface is improperly pressurized and overheated reducing the possibility of catastrophic failure. Last but not least, the use a water / methanol injection mix includes two phase-change events:

1- The injected methanol changes from a liquid state to a vapor state at its boiling point of 65*C, i.e. as soon as it hits the compressed air mixture coming from the supercharger outlet. This phase change absorbs a lot of the heat out of the air and methanol mixture reducing inlet air temperatures even before the mixture reaches the combustion chamber and starts to get compressed. This temperature reduction goes a long way towards eliminating or highly reducing the possibility of detonation.

2- The injected water, changes from a liquid state to a vapor state at its boiling point of 100*C which depending on the availability of an intercooler in the system, my occur in the intake plumbing before reaching the combustion chamber, or may not occur until the mixture is ignited. Either way, when the temperature is high enough, the water mist injected in the air stream will flash vaporize into steam also absorbing a generous amount of the heat created in the combustion.

The availability of these two octane boosters makes it now possible for aftermarket performance part manufacturers to deliver safe and reliable sequential charging kits to the mass market.

One such kit which I ran across in an article from hot rod magazine was developed by hellion performance (http://www.hellionpowersystems.com) for the factory supercharged GT-500 mustang.

The kit supposedly produce up to 1000 horsepower at a boost level of 24 psi using two 61mm Turbonetics turbochargers.

To achieve 1000 hp requires around 1500 cfm of airflow at 24psi or 1500cfm at a pressure ratio of 2.63, or 750cfm @ 2.63pr per turbocharger.

Since most compressor maps for this size of turbocharger (61mm) peak out at around 600cfm @ 2.63 pr @ around 50% efficiency which is an extreme point on the map (i.e. the turbocharger is maxed out at this point). I’m going to say that I am confident that the kit is capable of supporting 800hp with a typical pair 61mm turbocharger, however 1000hp although dyno-proven, does not agree with what is published on most 61mm turbochargers. I’m not doubting the kit, I am stating that I don’t have a better reference for the specific turbocharger used in the kit.

Furthermore, feeding 1000hp from 8 injectors requires eight 750cc/min injectors by my estimate and this agrees with what is mentioned on Hot Rod magazine’s article of needing 75lbs/hour injectors (each lb/hour is roughly equivalent to 10.5cc/min) at a minimum or a total fuel deliver requirement of 900 liters per hour of fuel at a the fuel rail pressure which is typically around 45psi.

Looking at the flow capacity of the GS342 fuel pump supplied with the kit, which is 255lph @ 30psi, then using 3 fuel pumps gives us the capacity for 765lph which is about 2125 hp worth of fuel, so in that regard the kit is capable of supporting the power figure.

As you can see, it is possible to design such a complex system if the information (Turbocharger compressor map, turbocharger temperature map, supercharger compressor map, supercharger temperature map …etc) information were available before hand. What remains a mystery and an art of trial and failure, is how over-engineered is your engine, how much torque can it produce and still continue to survive, and how long can it continue to survive at elevated power levels. That is altogether a more exciting question to answer.

A Recipe For Making Biodiesel At Home

Increasingly, there are a growing number of options available to people wishing to use cleaner and/or renewable fuels.  One such option is to actually make your own fuel!  If you are interested in making your own biodiesel, this guide will take you through the process of doing so.

Safety alert

The home preparation of biodiesel involves the chemicals lye (Caustic soda) and methanol.  Lye is a corrosive chemical ìbaseî which can cause burns to exposed skin; it is important to avoid direct contact with this chemical.  Methanol is an alcohol which is toxic if ingested.  The chemical which will be formed by the mixing of lye and methanol, methoxide, forms toxic vapors.  

These chemical dangers are akin to other dangers found around the typical home, including drain clog removing products, cleaning products, antifreeze and other automotive chemicals, and many others.  In fact, there is nothing more dangerous about the production of biodiesel than is involved in using any number of common home chemicals which can be lethal if ingested; however, simple steps must be taken to minimize the risks, which will be outlined in the next section.  

Preparation

Before you begin the actual preparation of biodiesel, care should be taken to ensure a clean, and most importantly, a safe working environment.  First, the area should be clean and dry, and the working area must be well ventilated.  Any windows should be opened as fully as possible, and preferably fans should be in operation as well.  Safety equipment should be worn, including:  a plastic laboratory apron, plastic (or vinyl) safety gloves, and face/eye protection.

Materials

To make biodiesel at home, the following materials will be needed:

- 1 liter of NEW vegetable oil, which can be of any sort.  Use a cheap version to save money.
- Lye, also known as caustic soda (sodium hydroxide)
- Methanol (methyl alcohol)
- A measuring cup with which to measure 250 mL of methanol
- A clean, dry, 2 liter plastic bottle.  This is where the biodiesel will be made.
- A clean, dry plastic funnel
- A clean dry, container in which to mix the methanol and lye

Procedure

Making sure to follow all safety guidelines, the first step is to mix the methanol and lye to form methoxide.  

First, measure 250 mL of methanol into the mixing container, and then add 4 grams of lye.  Seal the container immediately and swirl by hand until the lye has completely dissolved.  The chemical reaction to form methanol will happen spontaneously as the two ingredients are mixed; the reaction should take ten minutes or more to ensure complete conversion.  This reaction will produce a certain amount of heat, which is perfectly normal.  

Next, the clean vegetable oil must be heated to 60 degrees Celsius (140 degrees Fahrenheit), and the hot oil funneled into the plastic bottle.  Using the same funnel and taking care not to breathe any fumes, pour the methoxide produced in the first step into the plastic container containing the heated oil.  Immediately seal the bottle as tightly as possible and shake vigorously for about twenty seconds.  

Now, leave the bottle to rest until the biodiesel has separated clearly from the methanol.  The biodiesel will settle on top, and will be light in color if done correctly.  Especially well prepared biodiesel will be virtually clear.  Underneath the layer of biodiesel will be a darker layer of glycerol.  The separation of biodiesel from glycerol may begin to appear within ten minutes, but will take a number of hours to complete; hence this may be something to be left overnight.

The final step is to extract the biodiesel from the bottle.  It is even safe to use your finger to hold back the lower layer of glycerol while letting the biodiesel pour out.

Washing and Testing Biodiesel

It is often a good idea to “wash” your biodiesel after it is produced to ensure that it is as pure as possible, and thus the best fuel possible.  If you are really dedicated, you can even test the quality of your refined and washed biodiesel.

Conclusions

While care must be taken to perform this operation safely, the production of biodiesel is an easy procedure which requires no advanced knowledge of chemistry.  If done correctly, the product of this simple procedure will be fuel which can run your diesel car or truck, and fuel which can be of a quality that rivals commercially made biodiesel when prepared expertly.

GreenCell Technologies: GASOLINE AND A HYDROGEN-GASOLINE MIXTURE

GreenCell Technologies: EMISSIONS AND TOTAL ENERGY CONSUMPTION OF A MULTICYLINDER PISTON ENGINE RUNNING ON GASOLINE AND A HYDROGEN-GASOLINE MIXTURE

Johz F. Cassidy Lewis Research Center. Chehnd, Ohio 44135 An experimental program using a multicylinder reciprocating engine was performed to extend the efficient lean operating range of gasoline by adding hydrogen. Both bottled hydrogen and hydrogen produced by a research methanol steam reformer were used. These results were compared with results for all gasoline. A high-compression-ratio, 7. 4-liter (472-in. 3) d i s placement production engine was used. Apparent flame speed was-used to describe the differences in emissions and performance. Therefore, engine emissions and performance, including apparent flame speed and energy lost to the cooling system and the exhaust gas, were measured over a range of equivalence ratios for each fuel. The results were used to explain the advantages of adding hydrogen to gasoline as a method of extending the lean operating range. The minimum-energy-consumption equivalence ratio was extended to leaner conditions by adding hydrogen, although the minimum energy consumption did not change. All emission levels decreased at the leaner conditions. Also, adding hydrogen significantly increased flame speed over all equivalence ratios. Engine performance and emissions with hydrogen from the methanol reformer were about the same as those with bottled hydrogen.

GreenCell Technologies, Canada – An experimental program using a multicylinder reciprocating engine was performed to extend the efficient lean operating range of gasoline by adding hydrogen. Both bottled hydrogen and hydrogen produced by a research methanol steam reformer were used. These results were compared with results for all gasoline. A high-compressionratio, 7.4-liter (472-in. 3) displacement production engine was used. Apparent flame speed was used to describe the differences in emissions and performance. Therefore, engine emissions and performance, including apparent flame speed and energy loss to the cooling system and the exhaust gas, were measured over a range of equivalence ratios for each fuel.

The results were used to explain the advantages of adding hydrogen to gasoline as a method of extending the lean operating range. The minimum-energy-consumption equivalence ratio was extended to leaner conditions by adding hydrogen, although the minimum energy consumption did not change. All emission levels decreased at the leaner conditions. Also, hydrogen addition significantly increased flame speed over all equivalence ratios. Engine performance and emissions with hydrogen from the methanol reformer were about the same as those with bottled hydrogen.

GreenCell Technologies, Canada – INTRODUCTION . Increasing the efficiency of reciprocating engines has constantly been pursued since Otto-cycle engines were first used as vehicle powerplants. The important effects of fuel consumption on factors such as vehicle range, operating cost, and vehicle structures have always been important design considerations. During the past decade, the impact of environmental factors and a national interest in energy conservation have accentuated the need to produce clean and efficient engines. Many concepts for im

proving efficiency and meeting emissions standards have been tested and reported in the A review of the literature dealing with the problems of lean-mixture-ratio operation shows that a fuel with a low lean flammability limit and a high flame speed might yield low exhaust emissions at ultralean conditions. Hydrogen was identified in reference 5 as having those properties and has been the subject of much investigation. Using a small quantity, on a weight basis, of hydrogen as a supplement to gasoline was chosen as a way to extend lean engine operation. Onboard generation of hydrogen was selected as a feasible way to use hydrogen in a mobile application. The Jet Propulsion Laboratory I conducted a similar program (refs. 6 and 7) in which hydrogen generated by the partial oxidation of gasoline was used as a fuel supplement for lean engine operation. Various  commercial processes to generate hydrogen were analyzed for their applicability. The catalytic steam reformation of methyl alcohol (methanol) using engine exhaust heat was selected as being the most efficient process to generate hydrogen that was also compact enough to be carried on a vehicle. One disadvantage is that it would require a second fuel and a second fuel system.

A research system to generate hydrogen by methanol reformation was built and installed on a multicylinder engine in an existing engine test setup. An independent and parallel program on catalyst evaluation was performed but is not part of this report. An engine test program was conducted using gasoline and additions of gaseous hydrogen and reformed methanol to evaluate the effects of hydrogen-gasoline fuel mixtures on exhaust emissions, extension of lean engine operating limits, and fuel flammability limits and combustion flame speed.

GreenCell Technologies, Canada – This report presents a brief description of the breadboard methanol reformation system and the results of fuel and engine testing. The data were taken in the U. S. customary system of units and converted to SI units for this report.

GreenCell Technology is a Canadian company dedicated to designing and bringing to market, technology-based products in the alternative energy market. The current product is called the HydroCell, an on-board on-demand hydrogen generator engineered specifically for Diesel Transport Trucks.

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Alternate Methods to Save on Gas

The rising cost of fuel has forced the automotive industry to look into alternate sources to save fuel. Water is the best method to save fuel. Cars running on water uses water as a key source of fuel. Scientists believe that energy from water is the best substitute for automobiles.

The key component in this technology is water. The combination of oxygen and hydrogen produces water. Combination of oxygen and hydrogen is oxyhydrogen. Disadvantages of oxyhydrogen are:

1. The chemical combination of oxyhydrogen is completely different from water.
2. It exists in vapor form only at room temperature.

Process Involved:

The chemical produced through water is used as fuel in automobiles. The process to extract fuel from water is Electrolysis. Several industries are making use of this process to weld metal and glass. This process has become very popular because of its efficiency. When you mix oxyhydrogen with normal gasoline, it provides more energy and increases mileage. To run vehicles, you need a combination of water and vehicle fuel.

To reduce the fuel needed in cars, use of oxyhydrogen with normal fuel is an alternate method. Alternate methods reduce 50 percent of car energy costs. You need to be open to any alternate methods, as they can save fuel.

Next, running a car on water gives excellent results. It is a user-friendly method to use. You can switch between both vehicle fuel and water. The energy created makes the car run smoothly and efficiently. This alternate method helps the car in saving 80 percent of fuel on heat, pollution and vibration.

Drive water is another alternate method to save fuel. It uses car battery to separate water into a vapory form called HHO that is hydrogen in two parts and oxygen in one. Engines running on this fuel alternative method power themselves.

Types Of Alternate Methods And Its Uses:

Another substitute to save fuel is Zero emission gas. Fuel emission vehicles are produced by filling them with pure hydrogen. This substitute fuel saving method is used to power electric equipment.

Here, hydrogen has to be stored in its liquid form. Liquid hydrogen is very cold. The electricity generated from battery powers the motor of your vehicle. Fuel cells combine oxygen in the air with hydrogen to produce electricity.

Another alternate method is the use of methanol. There is no need to separate hydrogen from methanol, as fuel cell vehicles turn hydrogen and oxygen into electricity.

Its uses are:

1. It works on both gas and diesel powered cars.
2. More fuel efficiency.
3. It works on plain tap water

Combination of biomass and coal is Methanol. Methanol is also made of natural fuel, as it is cheaper. Methanol is poisonous and harmful to the skin. Methanol contains only one chemical, whereas gasoline contains many chemicals. The fire that breaks out due to Methanol is not viewable in bright sunlight. These are some of the disadvantages of Methanol. Experts say Methanol is good for fuel cell cars. Finally, Ethanol is also an alternate method to save fuel.

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Is Making Biodiesel at Home Safe? Home Bio Diesel Production

The flammability point of biodiesel. I’ve mentioned that it’s biodegradable that it’s safe to use blah, blah, blah, all these different things, but I want to show you how safe this is. This biodiesel that I’ve made from canola oil, so I’m going to pour a little bit in here, and now it’s time to play with fire. We’re going to come down here. Light up our torch, notice I have my fire extinguisher people. We now have a nice blow torch going. Notice I’ve got some nice biodiesel on the ground here. I want to show you that biodiesel is very, very safe to have around. I can’t light it on fire. This torch is a really hot torch. I’m actually using map gas. Map gas actually has a higher flame temperature. So I’m just trying to light this sucker on fire, and you know what, she’s not going. That’s because biodiesel isn’t actually that flammable. It has a much higher flash point than normal diesel, and I’ve just proven it. And that’s one of the reasons people like biodiesel is because it’s so safe to use. In fact, if this stuff spills on the ground the MSDS and things that it calls for is get a garden hose and wash it off. It’s not going to light up. It’s as safe to have around as vegetable oil. No I have to cavy up that this biodiesel has been cleaned. We have got all the methanol out of it, and we’ll talk a little bit about that later, but I just want to show you that it’s very clean and it just doesn’t burn. That’s that little fun experiment. We want to show you that biodiesel will burn though. When it’s under pressure it does burn quite well. For this experiment I’m just going to start a fire, and I’m going to spray it into it. As you can see it will burn, so when it’s in your diesel and it becomes injected, it will burn beautifully. That’s biodiesel burning.

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3 Biodiesel Titrations

Once you have your titration solution ready, it’s now time to start doing the titration. Remember on the board we explained how to do it. We’re basically going to take a known amount of the base solution. This is our .1 percent base solution, and I’m gonna pour some of this out into a little cup. It’s important that you never draw any of this with a syringe because it can contaminate this. That’s always why I put a little bit in a little cup. Seal it right back up, and that way I have a vessel for doing it. Now, I also have isopropyl alcohol, this is 91%, and I’m gonna put this in a vessel as well so that I don’t contaminate it either. To do a titration you have a sample of oil that you don’t know the acidity of, and you’re gonna get a syringe and you’re gonna suck up 1 milliliter of oil. These have milliliter markings on the side. These are kind of a handy little set of syringes. They actually say oil, alcohol, and titration solution. If you’d like these I carry them on my site as well at utahbio, but any syringe will do, but I just like it so I don’t mess up my syringes. I’m gonna suck up a milliliter of oil. I usually go a over and then I come back down. I’m gonna move it, I have a bubble on top that I want to get rid of. I’m gonna squirt down till I get to a milliliter of oil. I’ve got a milliliter of oil there. Before I put that into my solution here I’m going to put 10 milliliters of isopropyl alcohol in here. Now these actually have handy measurements on the side, so I can actually do it that way, but if you don’t you can suck up ten milliliters with a syringe, and get rid of your bubble. This is somewhat of a messy process so you want to wear gloves. You’ll notice that I have a little bit of oil and stuff around. There’s just no clean way to do biodiesel. I have yet to meet anyone who has. Buy some kitty litter if you want to make sure things are clean as the oil dries. Kay, so I’m gonna put ten milliliters of isopropyl alcohol into my jar here, and I’m gonna spray a milliliter of oil into this mixture. Now let the camera get up and kinda look at that real close. Now you’ll notice that is not really well mixed, and that’s because oil and water don’t like each other, so we’re gonna have to mix this up here. We’ll stir this here for a second. If you’d like you can heat the mixture a little bit. You don’t want to heat it too much ‘cause you don’t want to boil of your alcohol, but I’ve heard of some people heating the oil in the microwave in a little tiny dish before they use it. Our goal was just to basically get it to be one solution as you see here. To this mixture, we’re now gonna add about 3 or 4 drops of our phenolphalene. Again this is just a PH indicator, it’s nothing more than that. It’s not really important how many drops you need to put in here ‘cause all this is doing is indicating PH. Kay, so I’m gonna mix this up. Now what I’m gonna do is very slowly suck up some titration solution. I’ve got ten milliliters of titration solution in this syringe. I’m using a little stirrer and I’m just gonna start stirring this in. So I started with ten. I’m basically just looking for this to change colors. I don’t know if you can see that real well. Let me see if I can get you a closer view. As I put this in it is literally starting to change color drop by drop. You see that pink that’s occurring? Let’s see if I can do it a little differently here. That pink is my indicator solution. What’s going on is I’ve got a basic solution, I’ve got an unknown amount of acid, and it’s starting to neutralize that acid and taking the pH up over. How you know when you’re done is when that turns pink and stays pink for about 30 seconds. There we’re starting to come into it. There we’re a nice pink. Just a little bit more to be sure, and then we’ll sit and let that go for about 30 seconds. After 30 seconds if it is still that color, then we’re gonna write that number down. I’m gonna let this sit here while we look at our math. We started with ten milliliters, and we’re now at seven, so 8,9,10 that’s three, it took 3 milliliters of our titration solution to neutralize this acid in our oil. You’ll notice we’re staying this nice beautiful pink which is what we’re after there. A lot of times when you’re doing a titration it’s important to do it about three times to make sure that you’ve done it right. So we’re gonna do it, I’m gonna show you how to do it again one more time. ‘cause we kind of slopped around and made a little bit of a mess. You just want to make sure you always redo it, double-check your math. If after three times your number are plus or minus one, that’s your number. Average them out and that’s gonna be your titration number. So we’ll go ahead and pause here for a moment and we’ll get another one set up.

Kay, we’ve done our first titration and we got three so we’re gonna do another one. Again, one milliliter of oil. So I’ve got one milliliter of oil. Set that here. I’m gonna put ten milliliters of alcohol. Get that bubble out of the way. Ten milliliters of isopropyl alcohol into a container. One milliliter of oil. A couple of drops of my titrating solution. Again this is phenolphalene, phenol red, or toomric will work just fine. It also doesn’t matter how much of this I put in because it’s just my indicator solution. Now I’m gonna mix this up and get a really uniform batch of oil, alcohol and the indicator solution, and then using my titration solution, remember known amount of base, unknown amount of acid, in we go. We’ll move these out of the way so we get a little better view here. Slowly I’m just gonna start adding known amounts of base, starting at ten. We’ll swirl it around, it already started to turn a little bit pink which is what we want. There’s some pink and back to yellow, so we need a little bit more. Swirl it around. Oh, it’s getting there. Notice, it’s staying this good, nice pink color. Maybe just a little bit more. Okay here, so I’ve got that beautiful pink color. Phenol red turns sort of a redish color. Tumric turns kind of a pinkish color. This is phenolphalene you can see that it’s somewhat of a pink color, but your goal is just to hit that color and make it stay for about 30 seconds. Again, what that means is I’ve had an unknown amount of acid in the oil, a known amount of base that we add to it until we knock that pH, until we’ve neutralized it. This took, this is sitting at six this time. So we’re really close. We’ll do one more and then we’ll average everything together, then we’ll show you how much you’re gonna need to make a batch.

Kay, we’ll do our third and final titration. Again, we’re gonna do ten milliliters of alcohol. We’ll drop some indicator solution, one milliliter of oil, put it in, mix it up, and then we’re gonna slowly add in our titration solution. We’re gonna watch for the color change. Mix it around, it’s starting to turn. It’s getting there, and we changed. I’m at six, so I know, add a little bit more just to keep it there. So my first one was seven, my second was six, and my third one is about six and a quarter, so I’m gonna call this about six grams, or six milliliters extra. So what our titration would be, or how much we would add to our biodiesel that we’re gonna make, we’re gonna take 7.5 + 4 so about 12 grams we will add per liter of oil. So if we had 100 liters of oil we would add 1,200 grams of catalyst to that into our methanol to make biodiesel. And that’s how you do a titration.

Nitro Petrol Cars For Sale Ohio

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The specific choice of Mobile portable remote control autos along with move radio controlled drift cars Ohio is actually enormous in addition to enhancing every single day. Searching for the quickest vehicles available— and now we are generally speaking about real quick: or maybe are you searching for something incredible as well as in fact pleasurable which you’ll acquire numerous suggestions along with as well? The particular nitro remote control cars or Ohio nitro powered cars racing is ideal for an individual! With regards to incredible, energy in addition to converting, practically nothing might beat nitro run radio controlled vehicles, radio control changing automobiles accessible and also buggies. This sort of fuel beneficial handy remote control vehicles works on the specific form of energy called nitro methane or simply just nitro regarding short, the actual blend of nitro methane, methanol and in addition polymer-bonded. Thinking this particular durability seems just as the real dragsters carry out, you may well be completely proper!! The sole distinction is really how the radio controlled cars will not have to get virtually any dragster to eliminate nitro. Every one of them burns away this type of! These individuals get away every single road while using appears as well as breaks down whereby adds to the satisfaction when using community. Additionally, isn’t it rousing to master the true seemed of the electric power generator? Selecting your own nitro vehicle could be the pleasurable percentage!

Offroad Nitro Radio controlled Autos — Usually takes upon substantial innovations as well as grow to be run practically just about everywhere it doesn’t matter how tough this particular landscape. Combination of rate, vitality, in addition to sturdiness makes them turn out to be ideal for newbies to your activities.

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4WD Offroad Nitro Buggies — When you wish the maximum inside of pace, velocity, dealing with, durability, and in addition total enjoyable! There are numerous styles to pick from nonetheless it is rather recommended concerning novices to begin with any type of willing to operate automobile the same as by means of Traxxas, Team Associated, Sportwerks, as well as HPI Rushing. Rushing nitro vehicles as well as nitro useful helpful handheld handy remote control pickup truck is one of intriguing in addition to interesting part of the radio controlled automobile hobby. Regardless of whether it’s through the entire monitor with the organized contest, on the street, inside places or simply just all on your own grass rather than your buddies, almost no outshines the energy, speed, appear, odor in addition to adrenaline become quickly in terms of combating rushing possessing an instant along with strong competitors device. They are going to achieve charges concerning velocity as much as 80mph or maybe more. A fast pit stop trying can be your own nitro car wishes to enable you to return on the highway impressing your own overall buddies. Come from which usually wonderful extra sturdiness inside; include how the nitro gasoline can offer. Get yourself nitro remote control cars after which it departs another rc cars about the muck!

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Nitro Drift Cars Ohio

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The specific selection of Mobile transportable handheld remote control vehicles as well as change Radio controlled drift cars Ohio is in fact huge as well as enhancing daily. Looking for the quickest automobiles available— so we’re generally talking about the following real quick: or even shopping regarding some thing extraordinary in addition truth pleasurable which you’ll acquire quite a few suggestions along with at the same time? The specific nitro remote control cars or even Ohio nitro powered cars racing is great for an individual! In terms of extraordinary, vigor in addition to altering, almost no may wipe out nitro function radio stations handle vehicles, stereo handle transforming vehicles available and likewise buggies. This type of vitality helpful useful remote control autos capabilities around the particular type of energy called nitro methane or simply just simply nitro regarding brief, the specific blend of nitro methane, methanol and in addition polymer-bonded. Pondering this particular sturdiness appears just as the specific dragsters execute, an individual could well be completely appropriate!! The sole difference is completely what sort of radio stations manage cars will not have to have virtually any dragster to get rid of nitro. Every one of these melts away this sort of! Her or him get away each path while using seems in addition to stops operating wherever enhances the particular satisfaction when working with community. In addition, don’t you find it rousing to master the real made an appearance in the energy power generator? Selecting your personal nitro automobile will be the enjoyable percentage!

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On-Road Nitro Energy Remote Control Cars– Built to become leaped about the road, inside keep track of, as well as almost any ready places. Swiftest best expenses concerning pace yet safer in order to circumstances whenever hit the actual package surfaces. Smaller levels helps it really is absolute best inside the nitro things or possibly a substantial advantage.

4WD Off – Road Nitro Buggies — If you want the most inside rate, pace, working with, toughness, as well as total pleasurable! You will find a lot of styles accessible however it is very recommended regarding novices to begin with any type of willing to operate vehicle just like by means of Traxxas, Team Related, Sportwerks, as well as HPI Hurrying. Hastening nitro vehicles in addition to nitro beneficial useful portable useful distant gadget vehicle is among stimulating together with interesting part of the radio control automobile pastime. Whether or not it really is about the same monitor while using the arranged competitors, around the opportunity, inside of places or simply by yourself yard as opposed to your friends, hardly any significantly far outshines the the vitality, speed, show up, scent along with adrenaline grow to be swiftly when it comes to coping with hurrying keeping an immediate together with powerful opponents system. They will accomplish charges with regards to increase in order to 80mph or maybe more. A quick pit quit will probably be your personal nitro automobile wishes to enable you to go back vacationing impressing your own total buddies. Come from which regularly fantastic additional strength inside of; include what sort of nitro fuel can offer. Get nitro remote control system automobiles and this simply leaves one more remote control vehicles with regards to the wreck!