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:
Nov. 29, 2022
Filed:
Oct. 24, 2019
Applicant:
Basf Corporation, Florham Park, NJ (US);
Inventors:
Stefan Maurer, Shanghai, CN;
Jia Di Zhang, Shanghai, CN;
Yu Dai, Shanghai, CN;
Yu Fen Hao, Shanghai, CN;
Ming Ming Wei, Shanghai, CN;
Teng Shen, Shanghai, CN;
Assignee:
BASF Corporation, Florham Park, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/94 (2006.01); B01J 23/40 (2006.01); B01J 29/76 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9477 (2013.01); B01D 53/944 (2013.01); B01D 53/9418 (2013.01); B01D 53/9436 (2013.01); B01J 23/40 (2013.01); B01J 29/76 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); B01J 35/1014 (2013.01); B01J 35/1019 (2013.01); B01J 35/1038 (2013.01); B01J 35/1042 (2013.01); B01J 35/1047 (2013.01); B01J 35/1061 (2013.01); B01J 37/0246 (2013.01); F01N 3/103 (2013.01); F01N 3/106 (2013.01); F01N 3/2066 (2013.01); F01N 3/2803 (2013.01); F01N 3/2842 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/50 (2013.01); B01D 2255/9155 (2013.01); B01D 2255/9202 (2013.01); B01D 2255/9205 (2013.01); B01D 2255/9207 (2013.01); F01N 2370/04 (2013.01);
Abstract
The present invention relates generally to the field of exhaust treatment systems for purifying exhaust gas discharged from a lean burn engine. The exhaust treatment system comprises a Diesel Oxidation Catalyst (DOC), a Catalyzed Soot Filter (CSF), a reductant injector, an AEI zeolite based Selective Catalyzed Reduction (SCR) catalyst and an Ammonia Oxidation Catalyst (AMOX) downstream to the AEI zeolite based SCR catalyst.