Oil filtration process
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United States of America Patent
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Jul 28, 2009
Grant Date -
N/A
app pub date -
Feb 29, 2008
filing date -
Feb 29, 2008
priority date (Note) -
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Abstract
A process of continuous, on-line active filtration of cooking oil during food processing in a vat to remove free-fatty-acids and other undesirable impurities includes moving oil from the vat to a treatment tank; adding an amount of adsorbent to the oil in the treatment tank; mixing the oil and the adsorbent in the treatment tank for a time to allow substantially all of the free-fatty-acid adsorption of the process to occur in the tank; drawing treated oil from the treatment tank and moving it to a flatbed pressure filter; filtering the treated oil through the filter to remove the impurity-laden adsorbent therefrom; returning the filtered oil to the vat; and conducting the foregoing steps at a rate such that a volume of oil substantially equal to the volume of the vat is filtered each hour.
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