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1. (WO2013116342) MOBILE PROCESSING SYSTEMS AND METHODS FOR PRODUCING BIODIESEL FUEL FROM WASTE OILS

Pub. No.:    WO/2013/116342    International Application No.:    PCT/US2013/023852
Publication Date: Fri Aug 09 01:59:59 CEST 2013 International Filing Date: Thu Jan 31 00:59:59 CET 2013
IPC: C10L 8/00
C10L 1/08
C11C 3/10
C11C 3/08
Applicants: REVOLUTION FUELS, INC.
Inventors: RETHORE, James M.
WHEELER, Julie E.
ZULLO, Luca
Title: MOBILE PROCESSING SYSTEMS AND METHODS FOR PRODUCING BIODIESEL FUEL FROM WASTE OILS
Abstract:
The present invention improves biodiesel production in several ways. Unique combinations of unit operations and flow configurations are disclosed in mobile processing units that are feedstock-flexible and can be dynamically deployed in a distributed way. In some embodiments, a process includes introducing a waste oil and an alcohol into a reactor with an esterification-transesterification enzymatic catalyst. Free fatty acids are reacted with alcohol to produce fatty acid alkyl esters, and glycerides are reacted with alcohol to produce fatty acid alkyl esters and glycerin. A membrane separator removes glycerin, water, and alcohol. Unreacted free fatty acids are then separated and recycled, to generate a product stream with fatty acid alkyl esters. A genset may be provided for combusting glycerin to produce electrical power and thermal heat as co-products. This biodiesel process may be energy self-sufficient, require no external utilities, and avoid direct discharge of wastewater.