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. 01, 2016
Filed:
Sep. 05, 2012
Applicants:
Katsumi Nochi, Minato-ku, JP;
Masashi Kiyosawa, Minato-ku, JP;
Inventors:
Katsumi Nochi, Minato-ku, JP;
Masashi Kiyosawa, Minato-ku, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/20 (2006.01); B01J 38/64 (2006.01); B01D 53/96 (2006.01); B01J 37/06 (2006.01); B01J 38/60 (2006.01); B01J 23/30 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01D 53/86 (2006.01);
U.S. Cl.
CPC ...
B01J 21/20 (2013.01); B01D 53/8625 (2013.01); B01D 53/96 (2013.01); B01J 21/063 (2013.01); B01J 21/08 (2013.01); B01J 23/30 (2013.01); B01J 37/0036 (2013.01); B01J 37/0215 (2013.01); B01J 37/06 (2013.01); B01J 38/60 (2013.01); B01J 38/64 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20769 (2013.01); B01D 2255/20776 (2013.01);
Abstract
In a NOremoval catalyst used for removing nitrogen oxides in flue gas, when a silica (Si) component as an inhibitor that causes an increase in a SOoxidation rate accumulates on a surface of the catalyst, the silica component accumulating on the surface of the catalyst is dissolved, thereby regenerating the catalyst. Accordingly, the inhibitor such as the silica component covering the surface of the NOremoval catalyst can be removed, thereby enabling to provide a catalyst without having an increase in the SOoxidation rate of the regenerated NOremoval catalyst.