Process for producing ethanol
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United States of America Patent
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Jun 21, 2011
Grant Date -
Oct 28, 2010
app pub date -
Jan 26, 2010
filing date -
Mar 11, 1999
priority date (Note) -
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Abstract
A process for producing ethanol including a combination of biochemical and synthetic conversions results in high yield ethanol production with concurrent production of high value coproducts. An acetic acid intermediate is produced from carbohydrates, such as corn, using enzymatic milling and fermentation steps, followed by conversion of the acetic acid into ethanol using esterification and hydrogenation reactions. Coproducts can include corn oil, and high protein animal feed containing the biomass produced in the fermentation.
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