Search results
Results from the WOW.Com Content Network
The dominant ethanol feedstock in warmer regions is sugarcane. [8] In temperate regions, corn or sugar beets are used. [8] [9] In the United States, the main feedstock for the production of ethanol is currently corn. [8] Approximately 2.8 gallons of ethanol are produced from one bushel of corn (0.42 liter per kilogram).
The world's top ethanol fuel producers in 2011 were the United States with 13.9 billion U.S. liquid gallons (bg) (52.6 billion liters) and Brazil with 5.6 bg (21.1 billion liters), accounting together for 87.1% of world production of 22.36 billion US gallons (84.6 billion liters). [1]
One rationale for ethanol production in the U.S. is increased energy security, from shifting supply from oil imports to domestic sources. [30] [76] Ethanol production requires significant energy, and current U.S. production derives most of that energy from domestic coal, natural gas and other non-oil sources. [77]
Ethanol production depends on development of cellulosic technology. Breeding efforts underway to increase yields. Higher biomass production is possible with mixed species of perennial grasses. Poplar: 3700–6000 L/ha, 400–640 gal/acre 51%–100% 3 9 [98] Fast-growing tree. Ethanol production depends on development of cellulosic technology.
Ethanol production rises to the 4-billion-US-gallon (15,000,000 m 3) level. Between 1997 and 2002 , three million U.S. cars and light trucks are produced which could run on E85 , a blend of 85% ethanol with 15% gasoline.
At lower quantities of production, Wang finds it appropriate to credit corn ethanol based on the input energy requirement of the feed product or good that the ethanol by-product displaces. [8] In 2004, a USDA report found that co-products accounting made the difference between energy ratios of 1.06 and 1.67.
The Renewable Fuel Standard, or RFS, was first passed in 2005 to mandate the use of biofuels in America's transportation sector. Despite being amended in 2007, it still has some pretty big flaws ...
Despite the bactericidal effects of ethanol, acidifying effects of fermentation, and low oxygen conditions of industrial alcohol production, bacteria that undergo lactic acid fermentation can contaminate such facilities because lactic acid has a low pKa of 3.86 to avoid decoupling the pH membrane gradient that supports regulated transport. [7]