Sentences with phrase «than the ethanol fuel»

David Pimentel, a professor of ecology at Cornell University who has been studying grain alcohol for 20 years, and Tad Patzek, an engineering professor at the University of California, Berkeley, co-wrote a recent report that estimates that making ethanol from corn requires 29 percent more fossil energy than the ethanol fuel itself actually contains.

• Ethanol production using wood biomass required 57 % more fossil energy than the ethanol fuel produced.

• Ethanol production using switchgrass required 50 % more fossil energy than the ethanol fuel produced.

Not exact matches

And Brazil, arguably the world leader in making ethanol from crops, has been turning sugar cane into fuel for nearly three decades — a process that is 30 % cheaper than corn - based production in the U.S.

According to our analysis, this would generate more than enough electricity to power the biorefinery, so surplus power could be sold back to the grid, displacing electricity produced from fossil fuels — a practice already used in some plants in Brazil to produce ethanol from sugarcane.

From the start, the ethanol industry has been dogged by concerns about its net energy balance — whether ethanol requires more fossil fuel to make than it replaces.

The researchers, who found that ethanol requires 29 percent more fossil energy than it provides, question the morality of using grain to fuel cars in the face of world hunger.

While ethanol currently makes up less than 4 percent of the motor fuel used nationally, the corn used in ethanol production constitutes 14 percent of the domestic crop.

«In terms of consumer ownership and use costs, the case to make a switch from current fuels to compressed natural gas (CNG) is much more compelling than for other alternative fuels like ethanol and electricity.»

Currently more than 40 per cent of the US corn crop goes into producing ethanol, which is mostly mixed with gasoline to fuel conventional cars.

Since then, corn ethanol production has more than doubled to about 36.5 million gallons per day — meaning ethanol already is nearly 10 percent of U.S. fuel supply.

Fueling the automobile fleet primarily with ethanol rather than gasoline might increase air pollution, a new study finds

Studies have shown that using fuels composed of more than 85 percent ethanol reduce a variety of air pollutants.

That's because fermenting corn into ethanol delivers less liquid fuel energy for internal combustion engines than does burning the kernels to generate power for electric motors.

But experts at a major scientific meeting today described how ethanol blends used as fuel in the race cars of the Indianapolis 500 actually make those emissions cleaner than cars on the street.

In setting state rules for low - carbon fuels, California officials have calculated that corn ethanol is worse than gasoline.

Biobutanol advocates, including DuPont, say the fuel could work better in automobiles than the better - known ethanol and will be easier to transport.

«The blend - stock can be mixed into gasoline at higher concentrations than ethanol's current limit of 10 percent; plus it can be added to diesel and jet fuel.

We're learning now that not all ethanol is the same and that there may be better uses for corn than fueling cars.

The company can produce more than 100 gallons of fuel per ton based on lab experiments because bacteria make more ethanol: «We aren't producing butanol, propanol, hexanol, octanol, and all the other alcohols,» Bolsen says.

As attorney general, Pruitt in 2013 filed a friend of the court brief with the U.S. Supreme Court in which he argued the EPA ignored the risks that gasoline with more than 10 percent ethanol can pose to cars» fuel systems as well as the RFS requirement's possible effect on food prices.

And by the way, adding a copper - coated ruthenium catalyst can also convert the HMF to DMF (2,5 - dimethylfuran), a fuel that provides more energy than ethanol.

That method could make a difference in cellulosic biofuel plants, which produce ethanol from waste products — corn husks and cobs — rather than edible kernels, a major advance in addressing the tradeoff of using agricultural land to grow corn for fuel rather than for food.

That was the knock on ethanol: that it took more energy to create than it produced as fuel.

The real reason for the existence of ethanol fuel is that it is somewhat easier to produce ethanol from agricultural products than it is to produce biogasoline.

According to a book Vehicular Air Pollution I found from Google Books, ethanol fuel actually has some emissions worse than gasoline: ethanol emits more aldehydes.

Ethanol proponents claim that ethanol will deliver equal or better gas mileage than gasoline, when ethanol is used to fuel an engine optimized to take advantage of ethanol's superior combustion characterEthanol proponents claim that ethanol will deliver equal or better gas mileage than gasoline, when ethanol is used to fuel an engine optimized to take advantage of ethanol's superior combustion characterethanol will deliver equal or better gas mileage than gasoline, when ethanol is used to fuel an engine optimized to take advantage of ethanol's superior combustion characterethanol is used to fuel an engine optimized to take advantage of ethanol's superior combustion characterethanol's superior combustion characteristics.

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GM has been a big proponent of flex fuels, meaning E85 (85 % ethanol, 15 % gasoline) that gets worse mileage than regular gasoline but does win GM a EPA efficiency credit and is much beloved by America's corn farmers and others who like that the feedstock for E85 is domestic.

OPTION PACKAGES ENGINE, 5.3 L FLEXFUEL ECOTEC3 V8 WITH ACTIVE FUEL MANAGEMENT, DIRECT INJECTION AND VARIABLE VALVE TIMING: includes aluminum block construction with Flex Fuel capability, capable of running on unleaded or up to 85 ethanol (355 hp [265 kW] @ 5600 rpm, 383 lb - ft of torque [518 Nm] @ 4100 rpm more than 300 lb - ft of torque from 2000 to 5600 rpm), TRAILERING PACKAGE includes trailer hitch, 7 - pin and 4 - pin connectors (Includes (G80) locking rear differentiFUEL MANAGEMENT, DIRECT INJECTION AND VARIABLE VALVE TIMING: includes aluminum block construction with Flex Fuel capability, capable of running on unleaded or up to 85 ethanol (355 hp [265 kW] @ 5600 rpm, 383 lb - ft of torque [518 Nm] @ 4100 rpm more than 300 lb - ft of torque from 2000 to 5600 rpm), TRAILERING PACKAGE includes trailer hitch, 7 - pin and 4 - pin connectors (Includes (G80) locking rear differentiFuel capability, capable of running on unleaded or up to 85 ethanol (355 hp [265 kW] @ 5600 rpm, 383 lb - ft of torque [518 Nm] @ 4100 rpm more than 300 lb - ft of torque from 2000 to 5600 rpm), TRAILERING PACKAGE includes trailer hitch, 7 - pin and 4 - pin connectors (Includes (G80) locking rear differential.)

The Switzer E900 Nissan GT - R runing on E85 is «greeer» than the petrol burning versions and the engine that features a new fuel system to handle ethanol had to receive larger injectors.

The fuel, which supposedly produces less volatile organic compound (VOC) emissions than regular diesel fuel or ethanol, is being produced by RenTech in Rialto, California.

«Since 2000, global wind energy generation has more than tripled; solar cell production has risen six-fold; production of fuel ethanol from crops have more than doubled; and biodiesel production has expanded nearly four-fold.

Al Darzins, a contributor to the report and group manager with the National Bioenergy Center at the National Renewable Energy Laboratory, stressed in an interview that algae is far less developed, technologically, than biodiesel fuel or corn ethanol.

When energy consumers, like Japan's gov» t, decide that it's better to spend a bit more money on limitless and safe ethanol, solar, wind, water, or geothermal power than on limited and dangerous fossil fuels, then the energy industry will change because it must.

The analysis found that 9 of the systems in the study — including two cellulosic ethanol systems (with and without CCS) have greenhouse gas index (GHGI) numbers of less than 0.20, and represent low - carbon transportation fuel options.

But the ethanol boosters are ignoring some unpleasant facts: Ethanol won't significantly reduce our oil imports; adding more ethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually coethanol boosters are ignoring some unpleasant facts: Ethanol won't significantly reduce our oil imports; adding more ethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually coEthanol won't significantly reduce our oil imports; adding more ethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually coethanol to our gas tanks adds further complexity to our motor - fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually coethanol than it actually contains.

Study finds co-producing FT fuels and electricity from coal and biomass with CCS delivers low GHG synfuels at lower cost and with less biomass than cellulosic ethanol

Projects must demonstrate economically competitive yields and lower GHG potential than Low Carbon Fuel Standard (LCFS) pathways for corn ethanol or soy biodiesel.

It can be a lot more productive to produce mixed fuels like Acetone, Butanol and Ethanol in a process than trying to produce a single highly pure fuel.

More than hydrogen fuel cells (perpetually 10 to 15 years off) and cellulosic ethanol (ditto), electric cars represent a promising near - term solution to America's oil addiction.

• Since 2007, the RFS, which requires fuel retailers to blend corn ethanol into the gasoline they sell, has saddled American motorists with more than $ 10 billion per year in extra fuel costs above what they would have paid if they had purchased gasoline alone.

Mandates and subsidies for fossil - fuel intensive biofuels such as corn - derived ethanol are so large that eliminating or reducing them would almost certainly do more than a carbon tax to curb these fuels» artificial price advantage.

It cited «plausible scenarios in which GHG [greenhouse gas] emissions from corn - grain ethanol are much higher than those of petroleum - based fuels,» and questioned the method by which EPA determined that ethanol would produce 21 percent less emissions.

From 2007 to 2013, corn ethanol interests spent $ 158 million lobbying for more mandates and subsidies — and $ 6 million in campaign contributions — for a fuel that reduces mileage, damages engines, requires enormous amounts of land, water and fertilizer, and from stalk to tailpipe emits more carbon dioxide than gasoline.

Coal - powered ethanol refineries can lead to higher greenhouse gas emissions than the fossil fuel ethanol is intended to replace.

The combination of plug - in hybrids and bio-deisel (a much more energy - efficient fuel to make than ethanol) could significantly reduce developed world demand for oil for passenger transport.

The search for new strategies generally falls in two camps: ways to use organic stuff other than corn to make ethanol, and ways to manipulate organisms to produce a different fuel identical to gasoline or diesel.

Natural gas is a much lower CO2 fuel than ethanol, but it is a mistake to make cars powered solely with natural gas.