Methods and systems for bio-oil recovery and separation aids therefor
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United States of America Patent
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May 3, 2016
Grant Date -
Jun 19, 2014
app pub date -
Sep 26, 2013
filing date -
Dec 19, 2012
priority date (Note) -
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Abstract
A method and system for bio-oil recovery from biomass are provided which includes adding at least one separation aid to stillage that contains oil to form a treated stillage prior to centrifuging the stillage, and centrifuging the treated stillage in at least one centrifuge to separate at least a portion of the oil from the treated stillage. The separation aid can contain at least one lecithin and at least one oil and optionally at least one surfactant having an HLB value of at least 6. Treated stillage products are also provided which can contain the indicated separation aid and recovered oil.
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