Sentences with phrase «grain ethanol»
"Grain ethanol" refers to a type of alcohol that is made from grains, such as corn or wheat. Full definition
The energy return on grain ethanol is very low.
resilience.org
The other concern is the high degree of embedded (and unsustainable) fossil fuels required for grain ethanol production.
«If fuel became sufficiently valuable, it might well displace food crops, as is now the case with corn grain ethanol,» Gelfand says.
These facilities and those that follow will be driven by the same dynamic as grain ethanol, namely that industry profitability will be driven by ongoing reduction of processing costs such as enzymes and energy, as well as by increasing yields.
The business of grain ethanol has revitalized many rural communities, and has made farming much more profitable.
Current estimates, which I documented in the afore - mentioned article, put the cost of a biomass gasification plant at about 7 times the per barrel cost of a conventional oil refinery or grain ethanol plant, and double the costs of a coal - to - liquids plant.
I find it shameful that the U.S. subsidizes an unsustainable and polluting industry like grain ethanol, and punishes a sustainable industry like sugarcane ethanol.
Therefore, only grain ethanol data are presented here....»
Corn grain ethanol is not a solution due to low net energy gain, GHG emissions, environmental degradation (e.g., water pollution and soil loss), and food supply issues) and cellulosic ethanol doesn't look favorable due to energy density issues and GHG emissions.
The potential advantages of a solar and wind - powered transport system are so great that our current infatuation with grain ethanol is a tremendous misallocation of resources.
While corn - grain ethanol 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 — which includes crop residues like wheat straw, switchgrass, whole trees, and wood waste.
Grain ethanol is not sustainable for primarily 2 reasons.
Industrial countries could produce enough sugar cane / grain ethanol and / or cellulosic ethanol to replace the 75 + million barrels / day they consume without adversed effects on food production and / or major changes in land use.
The integration of a corn ethanol plant with livestock and heterotrophic algae could produce grain ethanol, cellulosic ethanol, distillers grains, meat or dairy, corn oil, algae oil — biodiesel and nutriceuticals, algae ethanol, complete protein algae feed, NPK fertilizer, bio-plastics, and manure - based digester biogas - for CHP production power and surplus electric power for the grid.