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. 26, 2019
Filed:
Aug. 31, 2017
Applicant:
Johnson Matthey Public Limited Company, London, GB;
Inventors:
Guy Richard Chandler, Royston, GB;
Paul Richard Phillips, Royston, GB;
Stuart David Reid, Royston, GB;
Wolfgang Strehlau, Sulzbach, DE;
Daniel Swallow, Royston, GB;
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/10 (2006.01); B01J 23/46 (2006.01); B01D 53/94 (2006.01); B01J 21/04 (2006.01); B01J 23/00 (2006.01); B01J 23/02 (2006.01); B01J 23/10 (2006.01); B01J 23/44 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); F01N 3/08 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
B01J 23/464 (2013.01); B01D 53/94 (2013.01); B01D 53/9422 (2013.01); B01J 21/04 (2013.01); B01J 23/005 (2013.01); B01J 23/02 (2013.01); B01J 23/10 (2013.01); B01J 23/44 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); B01J 35/1014 (2013.01); B01J 37/0236 (2013.01); B01J 37/0244 (2013.01); B01J 37/08 (2013.01); F01N 3/0814 (2013.01); F01N 3/0821 (2013.01); F01N 3/0842 (2013.01); F01N 3/2803 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2042 (2013.01); B01D 2255/2047 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/91 (2013.01); F01N 2510/0684 (2013.01); F01N 2570/14 (2013.01); F01N 2570/16 (2013.01);
Abstract
A NOtrap catalyst is disclosed. The NOtrap catalyst comprises a noble metal, a NOstorage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m/g. The invention also includes exhaust systems comprising the NOtrap catalyst, and a method for treating exhaust gas utilizing the NOtrap catalyst.