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:
May. 30, 2023
Filed:
Jan. 31, 2022
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Tsuyoshi Hirai, Yokohama, JP;
Tsuyoshi Yamaguchi, Yokohama, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/86 (2006.01); B01D 53/90 (2006.01);
U.S. Cl.
CPC ...
B01D 53/8696 (2013.01); B01D 53/8625 (2013.01); B01D 53/90 (2013.01); B01D 2251/2062 (2013.01); B01D 2255/902 (2013.01); B01D 2255/904 (2013.01); B01D 2257/404 (2013.01); B01D 2258/0283 (2013.01);
Abstract
A catalyst arrangement deciding method for a flue gas denitrizer including a catalyst layer disposed in an exhaust gas passage includes: a step of investigating a location dependence of a degradation state of a catalyst in the catalyst layer after a lapse of a period of operation; and a step of deciding a first region of the catalyst layer in which a first catalyst is used and a second region of the catalyst layer in which a second catalyst different from the first catalyst is used, on the basis of the location dependence.