Method and systems for enhancing oil recovery from ethanol production byproducts
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United States of America Patent
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Apr 21, 2015
Grant Date -
Jan 12, 2012
app pub date -
Jul 19, 2011
filing date -
Mar 16, 2005
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Abstract
Methods and related systems efficiently and effectively recover a significant amount of valuable, useable oil from byproducts formed during a dry milling process used for producing ethanol. The method may include forming a concentrate from the byproduct and recovering oil from the concentrate. The step of forming the concentrate may comprise evaporating the byproduct using a multi-stage evaporator, as well as recovering the oil before the final stage of the evaporator. Further, the step of recovering oil from the concentrate may comprise using a centrifuge and, in particular, a disk stack centrifuge. Other aspects include related methods and subsystems for recovering oil.
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