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.

Date of Patent:
Oct. 10, 2023

Filed:

Apr. 27, 2020
Applicant:

Basf Corporation, Florham Park, NJ (US);

Inventor:

Robert Dorner, Hannover, DE;

Assignee:

BASF Corporation, Florham Park, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/44 (2006.01); B01J 23/30 (2006.01); B01J 35/04 (2006.01); B01J 21/06 (2006.01); B01J 29/76 (2006.01); B01J 23/22 (2006.01); B01J 23/42 (2006.01); B01D 53/94 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01); F01N 13/00 (2010.01);
U.S. Cl.
CPC ...
B01J 23/44 (2013.01); B01D 53/944 (2013.01); B01D 53/9418 (2013.01); B01D 53/9431 (2013.01); B01D 53/9436 (2013.01); B01D 53/9477 (2013.01); B01J 21/063 (2013.01); B01J 21/066 (2013.01); B01J 23/22 (2013.01); B01J 23/30 (2013.01); B01J 23/42 (2013.01); B01J 29/763 (2013.01); B01J 35/04 (2013.01); F01N 3/2066 (2013.01); F01N 3/2803 (2013.01); F01N 13/0093 (2014.06); B01D 2255/1023 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/50 (2013.01); B01D 2255/902 (2013.01); B01D 2255/904 (2013.01); F01N 2370/04 (2013.01); F01N 2610/02 (2013.01); F01N 2610/03 (2013.01); F01N 2610/1453 (2013.01);
Abstract

The present disclosure relates to an exhaust gas treatment system for treating an exhaust gas stream leaving an internal combustion engine, wherein said exhaust gas treatment system comprises (i) a first catalyst comprising a coating and a first substrate, wherein the coating comprises a vanadium oxide supported on a first oxidic support comprising titanium; (ii) a hydrocarbon injector for injecting a fluid comprising hydrocarbons into the exhaust gas stream exiting the outlet end of the first catalyst according to (i); (iii) a second catalyst comprising a coating and a second substrate, wherein the coating comprises palladium on a second oxidic support comprising one or more of zirconium, silicon, aluminum and titanium.


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