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:
Mar. 28, 2017
Filed:
Oct. 20, 2014
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Masanao Yonemura, Tokyo, JP;
Akihiro Sawata, Tokyo, JP;
Yukio Tanaka, Tokyo, JP;
Hiroshi Yoshioka, Tokyo, JP;
Toshinobu Yasutake, Tokyo, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J 38/60 (2006.01); B01J 38/64 (2006.01); B01J 23/90 (2006.01); B01J 23/92 (2006.01);
U.S. Cl.
CPC ...
B01J 38/64 (2013.01); B01J 23/90 (2013.01); B01J 23/92 (2013.01); B01J 38/60 (2013.01);
Abstract
A method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst for hydrolyzing COS which is contained in a gas obtained by gasifying a carbon material, wherein a spent COS hydrolysis catalyst is immersed in an acid solution for a prescribed time thereby removing poisoning substances adhering to the surface of the COS hydrolysis catalyst; and thus regenerating the COS hydrolysis catalyst.