Methods of processing ethanol byproducts and related subsystems
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United States of America Patent
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Oct 9, 2012
Grant Date -
Nov 17, 2011
app pub date -
May 13, 2011
filing date -
Aug 17, 2004
priority date (Note) -
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Abstract
In one aspect of the invention, a method recovers oil from a concentrated byproduct, such as evaporated thin stillage formed during a dry milling process used for producing ethanol. The method includes forming a concentrate from the byproduct and recovering oil from the concentrate. The step of forming the concentrate may comprise evaporating the byproduct. Further, the step of separating the oil from the concentrate may comprise using a centrifuge and, in particular, a disk stack centrifuge. Other aspects of the invention include related methods and subsystems for recovering oil from thin stillage.
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