The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2010
Filed:
Mar. 08, 2004
Jin-suk Lee, Daijeon, KR;
Deog-keun Kim, Daejeon, KR;
Soon-chul Park, Seoul, KR;
Joon-pyo Lee, Daejeon, KR;
Sung-hyun Kim, Daejeon, KR;
Keun-hoo Lee, Seoul, KR;
Jin-Suk Lee, Daijeon, KR;
Deog-Keun Kim, Daejeon, KR;
Soon-Chul Park, Seoul, KR;
Joon-Pyo Lee, Daejeon, KR;
Sung-Hyun Kim, Daejeon, KR;
Keun-Hoo Lee, Seoul, KR;
Korea Institute of Energy Research, Daejeon, KR;
Abstract
The object of this invention is to provide a method of producing a bio-diesel oil in a great amount in a relatively short time, in which oil/fat and alcohol, used as reactants, are homogeneously mixed with each other to form a single liquid phase mixture which effectively react with each other. The method includes transesterifying the oil/fat and alcohol in the presence of alkyl ester. Additionally, in the method, alkyl ester is added to a mixture of the oil/fat and alcohol by recycling alkyl ester as a product to the mixture. Furthermore, the method includes (a) an acidic catalyst, and (b) transesterifying the pre-esterified oil/fat with alcohol in the presence of alkyl ester.