| Biodiesel (68) |  |
| Biogas (20) | |
or biodiesel from rapeseed. oeit is pretty irrelevant to rank various sustainable biofuels, there is room for all fuels,
ethanol and biodiesel in different variants. Biogas performed 140 percent better than gasoline and diesel and had a net carbon benefit.
Biogas from sugar beets, grass, maize, including residue in the form of household waste, industrial waste and manure, biodiesel from rapeseed, ethanol from wheat and sugar beets,
Analysis Reveals Pathways for Improving Biodiesel, Disease Resistance, and Reducing Waste Runoff Soybean, one of the most important global sources of protein and oil, is now the first legume species with a published complete draft genome sequence.
and lead to the increase of the use of soybean oil for biodiesel production. While biodiesel from soybean oil represents a cleaner
renewable alternative to fossil fuels with desirable properties as a liquid transportation fuel, there simply is not enough oil produced by the plant to be a competitive gasoline on a gallons-of-fuel yield per acre.
It converts its restaurants'fryer fat into biodiesel fuel for the mall's security vehicles according to the site's MOABLOG.
and to make biofuels like biodiesel a fuel with growing demand as a source of cleaner energy.
and biodiesel can be produced from the oil pressed from hemp seeds. Biodiesel production from hemp seed oil has been shown to overall have a much lower environmental impact than fossil diesel.
Indeed the environmental benefits of hemp have been praised highly since hemp cultivation requires very limited amounts of pesticide.
As president of the American Soybean Association he also tries to keep up with everything from biotechnology advances to biodiesel policy changes.
The California regulation does not yet include specific numbers for biodiesel, although the indirect impact could be even higher because of massive emissions from expanding palm-oil plantations, particularly in Indonesia.
Biodiesel from his institute's jatropha project (see Nature 449,652-655; 2007) has been used in test cars belonging to the project
and is about to embark on a life-cycle analysis of how much biodiesel jatropha can generate from a 50-hectare plot.
a modified Escherichia coli bacterium that can make biodiesel directly from sugars or hemicellulose, a component of plant fibre (see page 559).
show that the biodiesel that it is preparing to market reduces greenhouse-gas emissions by 85%compared with standard diesel.
Around 90%of the biofuel will come from conventional corn ethanol next year, with the remainder coming from biodiesel and other advanced biofuels.
The application of such factors would sound a death knell for the European biodiesel industry. According to most scientific studies including one by the International Food Policy Research Institute in WASHINGTON DC used by the European commission to prepare an impact assessment and legislation biodiesel from palm oil,
soya bean and rapeseed causes a similar level of pollution to oil obtained from oil sands
The biodiesel industry contests the"maturity of the science and says that the comparison is absurd A proposal from the European commission is unlikely in the near future.
But the emerging biodiesel market is also thirsty for the oil. In principle, biodiesel made from palm oil could be environmentally friendly,
because the carbon dioxide released when it is burned is roughly the same as that absorbed as the plant grows.
Rapeseed biodiesel fails sustainability testbiodiesels made using rapeseed oil may not be sustainable enough to be used in the European union (EU),
making it eligible for blending in biodiesels. The oil currently makes up over 80%of all vegetable oils used in European biofuels.
Freire says that there are"huge uncertainties associated with the greenhouse-gas emissions of biodiesel.""The Europe directive is not transparent
Lawmakers also reinstated a tax credit of US$1  per gallon (26.5  cents per  litre) for biodiesel production,
helping to generate a thriving bio  fuels industry based mainly on biodiesel. Europe is even importing rapeseed and vegetable oil to meet demand.
most varieties of biodiesel turn out to produce more emissions than bioethanol and often more than fossil fuels.
It also produces a seed rich in an oil suitable for use as sustainable and environmentally-friendly biodiesel fuel.
Camelina seeds have very high oil content leading researchers at the Danforth Center to focus on Camelina to develop biodiesel and other industrial products.
or for renewable clean-burning biodiesel could result in extremely high emissions of carbon dioxide (CO2)
or indigenous areas the total amount of CO2 emissions from biodiesel made from palm oil produced in that region may exceed the carbon intensity of petroleum diesel
which biodiesel intends to replace. Focussing on the Brazilian region of Parã¡the researchers employed a bottom-up model to arrive at their conclusions
Brazil has increased drastically its production of biodiesel over the last decade. In 2006 the country produced 69 million litres of biodiesel;
today it produces close to 3 billion litres the majority of which is produced from soybean oil. Oil palm has become an increasingly attractive crop for the production of biodiesel as it has a much higher yield than other crops requires barely any new technology to produce
and harvest can grow in poor soil conditions and is very labour intensive--ideal for job creation and security.
In each of the scenarios 22.5 million hectares of land were converted creating 29 billion gallons of biodiesel each year.
if the extraction refinement transport and actual combustion of the biodiesel is taken into account and added to emissions from
either of these two scenarios the total carbon intensity of biodiesel will exceed greatly that of diesel.
and biodiesel production said Xu. Burning plant biomass with such energy density to generate electricity would release 30 to 40 percent more energy
Biodiesel yields carbon dioxide emissions about 1 percent greater than those from petroleum diesel. If there is any climate benefit to biofuels it occurs
and transform them into oils and fats for biodiesel production. Brown said that either the bacteria themselves
Grewell and his colleagues report a third application for ultrasound in biofuel production showing that they can accelerate transesterification the main chemical reaction for converting oil to biodiesel.
In one case the researchers found that subjecting soybean oil to ultrasound transformed it into biodiesel in less than a minute rather than the 45 minutes it normally takes.
and starved with glycerin a co-product of biodiesel production could prodfuce high yields of oil that could be extracted
and simultaneously converted to biodiesel with ultrasonics in less than a minute. This is a dramatically faster
#Microalgae could be a profitable source of biodieseldinoflagellate microalgae could be used as a raw material to obtain biodiesel easily and profitably.
Researchers at the UAB's Institute of Environmental science and Technology (ICTA-UAB) and the Institute of Marine Sciences (ICM-CSIC) have analysed the potential of different species of microalgae for producing biodiesel comparing their growth production of biomass
Their study shows that one type of marine algae that has received little attention till now--dinoflagellate microalgae--is highly suitable for cultivation with the aim of producing biodiesel.
microalgae cultures are close to producing biodiesel profitably even in uncontrolled environmental conditions. If we make simple adjustments to completely optimise the process biodiesel obtained by cultivating these marine microalgae could be an option for energy supplies to towns near the sea points out Sergio Rossi an ICTA researcher at the UAB.
Among these adjustments scientists highlight the possibility of reusing leftover organic pulp (the glycerol and protein pulp that is not converted into biodiesel)
and using air pumps and more efficient cultivation materials. Though similar studies have been done on other alga species dinoflagellate microalgae have shown themselves to be a very promising group that stands out from the rest.
so they would present no environmental threat in the event of leakagethird-generation biodieselfirst-generation biodiesel
The possibility of creating energy from hydrocarbons extracted from organisms like marine phytoplankton the so-called third-generation biodiesel has several advantages.
and biodiesel are the only biofuels to have been produced in commercial quantities in the U s. to date the study committee found much greater potential in biofuels made from lignocellulosic biomass
Already there is a demonstrator facility in New mexico U s. for producing biodiesel from algae which is advanced a more process Hudson says.
and sal trees have almost as good a thermal efficiency as biodiesel but would produce lower emissions of carbon monoxide waste hydrocarbons and NOX (nitrogen oxides).
of which would reduce injector fouling carbon deposits and piston ring sticking common issues with some biodiesel formulations.
The oil is converted chemically to biodiesel using the process of transesterification which reacts the oily triglyceride content with alcohol using a catalyst.
Biodiesel production from tree seeds in India will not only reduce the dependence on crude oil imports
and turn it into an oil-producing crop for biodiesel production. These are only the first steps in a bigger initiative that will turn sugarcane
The team will present its latest findings Tuesday (Feb 25) at the U s. Department of energy's ARPA-E Energy Innovation Summit in Washington D c. Biodiesel is attractive
and corn or biodiesel from rapeseed and palm oil are in direct competition with food for arable land and water.
or the soybeans used to make biodiesel. Better still, you can grow algae on arid land and in brackish water,
Salvaging biofuel from West's pine beetle devastation Could biodiesel be worse for the environment than diesel?
36g Sugar beet â oe 34g Wheat (straw as process fuel in CHP plants) â oe 35g 2g Ethanol (land-using) â oe 32g 2g Biodiesel (land-using) â
oe 21g 2g Ethanol (non-land using) â oe 9g 2g Biodiesel (non-land using) â oe 9g
The top biodiesel crops--palm, soybean, and rapeseed oil--are all the least energy efficient. However, they are also the cheapest to produce,
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