Sentences with phrase «switchgrass required»

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

Not exact matches

«Cost competitive, energy responsible cellulosic ethanol made from switchgrass or from forestry waste like sawdust and wood chips requires a more complex refining process but it's worth the investment,» Energy Secretary Samuel Bodman said at the Range Fuels facility groundbreaking in November.

Rabasi pointed out that switchgrass is a hardy, natural grass native to North America that does not require fertilization or the use of chemicals during growth, making it an eco-friendly ingredient.

Because so little energy is required to cultivate crops such as switchgrass for cellulosic ethanol production, and because electricity can be co-produced using the residues of such cellulosic fuel production, reductions in greenhouse gas emissions for celluslosic ethanol when compared to gasoline are greater than 100 per cent.

By way of calibration, this would essentially eliminate the need for oil imports for passenger vehicle fuel and would require only the amount of land now in the soil bank (the Conservation Reserve Program («CRP») on which such soil - restoring crops as switchgrass are already being grown.

Switchgrass ethanol, though, can yield 540 percent more energy than is required to produce it, the new study says.

And yet the laws require that production from biodiesel, corn ethanol, and advanced biofuels (from switchgrass, etc.) climbs steadily year after year.

Switchgrass production requires fossil fuel inputs for machinery used in establishment (soil preparation and seed sowing), cultivation, harvest, and transportation to the processing plant (Qin et al. 2006).