Method of Extracting Oil from Thin-stillage
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United States of America Patent
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Issued Date -
Oct 24, 2013
app pub date -
Jul 3, 2012
filing date -
Jul 13, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of removing oil from an emulsion by-product of alcohol production from grain. A concentration-style centrifuge is used to separate the emulsion by-product into a light phase containing the oil and a heavy phase containing free-water and solids. The pH of the light phase is raised to approximately neutral by the addition of an alkaline composition to break the emulsion. The broken light phase is heated to between 170-200° F. and the oil is separated from the broken light phase in a disk-type centrifuge.
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