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:
Sep. 17, 2013
Filed:
Feb. 09, 2012
Keiichi Okuyama, Kawasaki, JP;
Yotaro Ohno, Tokyo, JP;
Takashi Ogawa, Tokyo, JP;
Seiji Aoki, Tokyo, JP;
Tsutomu Shikada, Kawasaki, JP;
Yasuhiro Mogi, Kawasaki, JP;
Toshifumi Suzuki, Kawasaki, JP;
Yasuo Miyoshi, Kawasaki, JP;
Nobuaki Kobayashi, Tokyo, JP;
Kazuro Suzuki, Tokyo, JP;
Keiichi Okuyama, Kawasaki, JP;
Yotaro Ohno, Tokyo, JP;
Takashi Ogawa, Tokyo, JP;
Seiji Aoki, Tokyo, JP;
Tsutomu Shikada, Kawasaki, JP;
Yasuhiro Mogi, Kawasaki, JP;
Toshifumi Suzuki, Kawasaki, JP;
Yasuo Miyoshi, Kawasaki, JP;
Nobuaki Kobayashi, Tokyo, JP;
Kazuro Suzuki, Tokyo, JP;
Inpex Corporation, Tokyo, JP;
Japan Petroleum Exploration Co., Ltd., Tokyo, JP;
Total Gas & Power Ventures, Courbevoie, FR;
Toyota Tsusho Corporation, Nagoya-shi, JP;
Abstract
A process for preparing dimethyl ether or a mixture of dimethyl ether and methanol including passing a raw gas containing carbon monoxide and hydrogen through a catalyst slurry containing a mixture including (a) a medium oil having as a main component, a branched, saturated aliphatic hydrocarbon having 16 to 50 carbon atoms, 1 to 7 tertiary carbon atoms, 0 quaternary carbon atoms, and 1 to 16 carbon atoms in the branched chains bonded to the tertiary carbon atom; and at least one of the tertiary carbon atoms is bonded to hydrocarbon chains with a chain length having 4 or more of carbon atoms in three directions, (b) a methanol synthesis catalyst; (c) a methanol dehydration catalyst; and (d) a methanol shift catalyst or a methanol dehydration/shift catalyst.