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:
Aug. 30, 2022
Filed:
Jul. 17, 2019
Fujitusyo Co., Ltd., Tokyo, JP;
National University Corporation Tokyo University of Agriculture & Technology, Tokyo, JP;
FUJITUSYO CO., LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE & TECHNOLOGY, Tokyo, JP;
Abstract
The present invention provides a method for producing a biofuel that allows an animal/vegetable fat/oil raw material containing a free fatty acid to react with a lower alcohol in the presence of a solid acid catalyst, in which the consumption of the lower alcohol is reduced and the free fatty acid and the lower alcohol are selectively esterified to reform the animal/vegetable fat/oil. In this method, as a solid acid catalyst is used a catalyst selected from an SiO/AlOsolid acid catalyst, an SiO/AlOsolid acid catalyst with aluminum being partially introduced into mesoporous silica, an AlO/BOsolid acid catalyst, and a sulfated zirconia solid acid catalyst, with a molar ratio of the free fatty acid and the lower alcohol of 1 to 6.