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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.:

US 10751701 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Dec. 16, 2016

Oxidation catalyst for compressed natural gas combustion system exhaust gas

Applicant:

Heesung Catalysts Corporation, Gyeonggi-do, KR;

Inventors:

Hyun-sik Han, Seoul, KR;

Eun-seok Kim, Gyeonggi-do, KR;

Mi-Young Kim, Gyeonggi-do, KR;

Jun hong Jeon, Gyeonggi-do, KR;

Assignee:

HEESUNG CATALYSTS CORPORATION, Gyeonggi-Do, KR;

Attorney:

Ballard Spahr LLP

Primary Examiner:

James A Fiorito

Int. Cl.
CPC ...
B01J 23/42 (2006.01); B01J 21/04 (2006.01); B01J 23/44 (2006.01); F01N 3/10 (2006.01); F02B 43/00 (2006.01); B01J 37/02 (2006.01); B01J 35/00 (2006.01); B01J 23/63 (2006.01); B01J 23/58 (2006.01); B01J 23/02 (2006.01); B01J 23/10 (2006.01); F02B 43/04 (2006.01); F02B 43/10 (2006.01);
U.S. Cl.
CPC ...
B01J 23/42 (2013.01); B01J 21/04 (2013.01); B01J 23/02 (2013.01); B01J 23/10 (2013.01); B01J 23/44 (2013.01); B01J 23/58 (2013.01); B01J 23/63 (2013.01); B01J 35/0006 (2013.01); B01J 37/0205 (2013.01); B01J 37/0215 (2013.01); B01J 37/0248 (2013.01); F01N 3/10 (2013.01); F02B 43/00 (2013.01); F02B 43/04 (2013.01); F02B 2043/103 (2013.01); Y02A 50/2322 (2018.01); Y02T 10/32 (2013.01);
Abstract

The present invention provides a catalyst composition for inhibiting the inactivation of a catalyst for purification of compressed natural gas combustion system exhaust gas on which a noble metal component comprising platinum and palladium is supported. An oxidation catalyst, for a compressed natural gas vehicle or static combustion system exhaust gas, in which a first alumina impregnated with platinum, a second alumina impregnated with palladium, and a ceria component are supported on a ceramic support, has a barium cocatalyst supported on the first alumina, thereby greatly inhibiting inactivation of a CNG lean burn engine catalyst.

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