Revo International Inc.

Ehime University

Ayato Kawashima

Keiichi Tsuto

Tsutomu Sakai

Tetsuya Koshikawa

Masahide Nakayama

Hirohisa Kitagawa

Hideo Yamamoto

Takenori Hirano

Tsutomu c/o Kansai Research Institute Inc Sakai

Hirano Takenori

Masahide c/o Revo International Inc Nakayama

Hirohisa c/o Kansai Research Institute Inc Kitagawa

Takenori c/o Kyushu Catalyst Res Inc Hirano

Tsutomu c/o Kansai Research Inst Inc Sakai

Hirohisa c/o Kansai Research Inst Inc Kitagawa

An object of the present invention is to provide a method for producing an alkyl ester of a fatty acid from a fat or oil, of which main component is a triglyceride, and an alkyl alcohol under mild conditions in a high reaction efficiency, and the alkyl ester of a fatty acid can be effectively utilized as a diesel fuel oil, an industrial raw material or the like, the method further being capable of utilizing on an industrial scale, in which post-treatment steps for removing a catalyst component can be simplified or omitted. For this purpose, the method for producing an alkyl ester of a fatty acid of this invention includes the step of carrying out a transesterification reaction between a fat or oil and an alcohol in the presence of a base catalyst containing calcium oxide, characterized in that the method includes the step of contacting the base catalyst with the alcohol, to carry out an activation treatment thereof in advance of the reaction.

Process for production of fatty acid alkyl ester and production apparatus for fatty acid alkyl ester

The present invention relates to a process for preparing an alkyl ester of a fatty acid wherein a transesterification reaction is carried out between a fat or oil and an alcohol in the presence of a catalyst comprising a composite metal oxide having a perovskite structure; and a process for preparing an alkyl ester of a fatty acid wherein a transesterification reaction is carried out between a fat or oil and an alcohol in the presence of a catalyst comprising at least one member selected from the group consisting of oxides, hydroxides and carbonates of alkaline earth metals is used as the catalyst, with the alcohol made into a supercritical state or subcritical state. According to the present invention, the alkyl ester of a fatty acid which can be effectively utilized as a diesel fuel oil or the like can be prepared at high efficiency and on an industrial scale mainly from triglyceride contained in a fat or oil, especially a waste oil.

Processes for producing alkyl ester of fatty acid

Growing community of inventors

Matsuyama, Japan

Ayato Kawashima