The interesteriﬁcation of rapeseed oil was performed for the ﬁrst time by using tin octoateas Lewis acid homogeneous catalysts and methyl or ethyl acetate as acyl acceptors in abatch reactor, within the temperature range 393e483 K. The yields in fatty acid ethyl esters(FAEE) and triacetin (TA) after 20 h of reaction time increased from 8% and 2%eto 61% and22%, respectively, when the reaction temperature increased from423 to 483 K. An optimumvalue of 40 for the acyl acceptor to oil molar ratio was found to be necessary to match goodfatty acid alkyl ester yields with high enough reaction rate. The rate of generation of esterswas signiﬁcantly higher when methyl acetate was used as acyl acceptor instead of its ethylhomologue. The collected results suggest that tin octoate can be used as effective catalystfor the interesteriﬁcation of rapeseed oil with methyl or ethyl acetate being highly solublein the reaction system, less expensive than enzymes and allowing the operator to workunder milder conditions than supercritical interesteriﬁcation processes.
|Numero di pagine||8|
|Rivista||BIOMASS & BIOENERGY|
|Stato di pubblicazione||Published - 2014|
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