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:
Jul. 02, 2024
Filed:
Aug. 10, 2021
Applicant:
Mitsui E&s Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
MITSUI E&S CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/28 (2006.01); B01J 21/06 (2006.01); B01J 29/08 (2006.01); B01J 35/56 (2024.01); F01N 3/08 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2828 (2013.01); B01J 21/06 (2013.01); B01J 35/56 (2024.01); F01N 3/2066 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/50 (2013.01); B01J 29/085 (2013.01); F01N 3/0814 (2013.01); F01N 3/0871 (2013.01); F01N 3/206 (2013.01); F01N 3/281 (2013.01); F01N 2370/04 (2013.01); F01N 2590/02 (2013.01);
Abstract
The honeycomb catalyst structure to be used for exhaust gas of a marine engine includes an SCR catalyst supported on a metal honeycomb unit having a shape divided by cell walls into a plurality of cells extending from one end face to the other end face. The SCR catalyst contains TiO2 alone, or contains TiO2 as a principal component and any one type or two or more types of V2O5, WO3, MoO3, SiO2, and Al2O3 in combination. The cell density of the plurality cells is 100 to 500 cpsi, and the slope of a straight line represented by a relationship between the flow velocity and the pressure loss of the exhaust gas passing through the cells is 30 or more and 180 or less.