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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 ethanol program is controversial for several reasons, not the least of which was that the ethanol industry was dominated by one company – Archer Daniels Midland of Peoria, Ill. In 1984, the number of ethanol plants peaked at 163 in the U.S., producing 595 million US gallons (2,250,000 m 3) of ethanol that year.
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.
Overall, 94% of ethanol in the United States is produced from corn. [5] Currently, corn ethanol is mainly used in blends with gasoline to create mixtures such as E10, E15, and E85. Ethanol is mixed into more than 98% of United States gasoline to reduce air pollution. [5] Corn ethanol is used as an oxygenate when mixed with gasoline.
The first three plants to produce sugar cane-based ethanol are expected to go online in Louisiana by mid 2009. Sugar mill plants in Lacassine, St. James and Bunkie were converted to sugar cane-based ethanol production using Colombian technology in order to enable a profitable ethanol production. These three plants will produce 100 million ...
A dish of ethanol aflame. Various alcohols are used as fuel for internal combustion engines.The first four aliphatic alcohols (methanol, ethanol, propanol, and butanol) are of interest as fuels because they can be synthesized chemically or biologically, and they have characteristics which allow them to be used in internal combustion engines.
The US is the world's largest producer of ethanol, having produced nearly 16 billion gallons in 2017 alone. [1] The United States, together with Brazil accounted for 85% of all ethanol production, with total world production of 27.05 billion gallons. Biodiesel is commercially available in most oilseed-producing states.