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:
Feb. 02, 2021
Filed:
Aug. 18, 2016
Basf Corporation, Florham Park, NJ (US);
N.e. Chemcat Corporation, Tokyo, JP;
Xiaolai Zheng, Princeton Junction, NJ (US);
Michel Deeba, East Brunswick, NJ (US);
Xiaofan Yang, Highland Park, NJ (US);
Qi Fu, Solon, OH (US);
Knut Wassermann, Princeton, NJ (US);
Makoto Nagata, Numazu, JP;
Yasuharu Kanno, Numazu, JP;
Hiroki Nakayama, Numazu, JP;
BASF Corporation, Florham Park, NJ (US);
N.E. Chemcat Corporation, Tokyo, JP;
Abstract
Described are catalysts effective to abate NO, hydrocarbons, and carbon monoxide from a gasoline engine exhaust gas. Such catalysts include a substrate having a first and second material disposed thereon, the first material effective to catalyze selective catalytic reduction of nitrogen oxides in the presence of ammonia and the second material effective to abate hydrocarbons and carbon monoxide, the first material comprising a molecular sieve promoted with copper and/or iron in a low loading, the second material comprising at least one oxide of Ni, Fe, Mn, Co, and Cu on a support selected from oxides of Ce, Ce—Zr, Zr, Mn, Pr and combinations thereof. Also described are gasoline engine exhaust gas treatment systems and methods of treating exhaust gas from a gasoline engine.