Method for reducing free fatty acid content of biodiesel feedstock
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United States of America Patent
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May 3, 2011
Grant Date -
Feb 12, 2009
app pub date -
Oct 3, 2008
filing date -
Aug 8, 2007
priority date (Note) -
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Abstract
A method comprising applying controlled flow cavitation apparatuses and holding tanks to a pretreatment process in order to reduce the free fatty acid content of a biodiesel feedstock. A feedstock comprising a high content of free fatty acids can be passed through controlled flow cavitation apparatuses and holding tanks at a velocity capable of generating hydrodynamic cavitation zones and subsequent dwell times where the free fatty acid content can be reduced to below 2%.
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