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:
Dec. 24, 2019
Filed:
Sep. 26, 2018
Applicant:
Shell Oil Company, Houston, TX (US);
Inventors:
Peter Tanev Tanev, Houston, TX (US);
Mario Soorholtz, Mannheim, DE;
Assignee:
SHELL OIL COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/06 (2006.01); B01J 37/02 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); B01D 53/94 (2006.01); B01J 35/00 (2006.01); B01J 23/44 (2006.01); B01J 35/10 (2006.01); B01J 35/04 (2006.01); B01J 23/38 (2006.01); B01J 37/10 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
B01J 21/066 (2013.01); B01D 53/944 (2013.01); B01J 23/38 (2013.01); B01J 23/44 (2013.01); B01J 35/002 (2013.01); B01J 35/04 (2013.01); B01J 35/1014 (2013.01); B01J 37/0201 (2013.01); B01J 37/0203 (2013.01); B01J 37/0236 (2013.01); B01J 37/0242 (2013.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); B01J 37/10 (2013.01); B01D 53/9477 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/9207 (2013.01); B01D 2257/7025 (2013.01); B01D 2258/018 (2013.01); F01N 3/20 (2013.01); F01N 2570/00 (2013.01); Y02C 20/20 (2013.01);
Abstract
The present invention provides a method of treating an exhaust gas comprising methane and NO. The exhaust gas is contacted with a catalyst in the presence of oxygen to oxidize at least part of the methane in the gas stream to carbon dioxide and water and at least part of the NO into NOobtaining a treated gas stream. The catalyst comprises one or more noble metals supported on non-modified zirconia, wherein the zirconia comprises tetragonal zirconia and monoclinic zirconia, and wherein the weight ratio of tetragonal zirconia to monoclinic zirconia is in the range of from 1:1 to 31:1.