Method of producing alkyl esters from vegetable or animal oil and an aliphatic monoalcohol using membrane separation
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United States of America Patent
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Jun 18, 2013
Grant Date -
Jul 29, 2010
app pub date -
Dec 22, 2009
filing date -
Dec 23, 2008
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Abstract
The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol in the presence of a heterogeneous solid catalyst so as to obtain an effluent comprising at least alkyl esters, free glycerol, bonded glycerol and alcohol, wherein at least one stage of separation of at least a portion of the effluent is carried out in order to separate the ester produced and the bonded glycerol, said separation occurring through a membrane.
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