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. 10, 2009
Filed:
Jul. 28, 2005
Applicants:
Makoto Nagata, Numazu, JP;
Takashi Hihara, Fuji, JP;
Inventors:
Makoto Nagata, Numazu, JP;
Takashi Hihara, Fuji, JP;
Assignee:
N.E. Chemcat Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/56 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
Abstract
A NOx removal catalyst comprising a carrier that includes a zeolite, and preferably a β-zeolite, that has undergone ion exchange with iron, and ferric oxide supported on the carrier. This NOx removal catalyst can be used favorably in a selective catalytic reduction process wherein nitrogen oxides contained in the exhaust gas from a diesel engine are reduced and removed by ammonia.