Biofpr :: Patent Intelligence Article :: Methods for producing biodiesel

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Published online: Jul 28, 2008

Geographical region	Europe
Subject	Biodiesel production
Published date	Jul 9, 2008
Title	Methods for producing biodiesel
Patent Application Number	EP1942095 A2
Assignee	Univ Carnegie Mellon, USA
Relevance	Method for converting feedstock having carboxylic acid and triglyceride into biodiesel using an esterification process and a transesterification process.
Type of claims	Publication
Overview	This patent discloses a method of converting a carboxylic acid to an alkyl ester using an esterification process. Advantageously, the invention enhances and improves the yield rate and reduces the reaction time over existing biodiesel transesterification and esterification techniques. Application of microwave energy or radio frequency (RF) provides significant increase in process rates, higher conversion levels by activating ionic catalyst site. The method comprising esterification process which includes, A) mixing the feedstock with an alcohol to produce a reactant mixture, B) contacting the reactant mixture with an acid catalyst, C) applying RF or microwave energy (400 MHz - 5 GHz) to one of the carboxylic acid, the alcohol, the catalyst, the mixture and a combination thereof to convert the carboxylic acid to a biodiesel and D) performing a transesterification process to convert the triglyceride to a biodiesel.
Related patent documents	US Patent publications Not Listed Foreign patent publications Not Listed
Patent Document	Full Patent Document [external link]

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