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. 25, 2020
Filed:
Feb. 03, 2017
Applicant:
Johnson Matthey Public Limited Company, London, GB;
Inventors:
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/28 (2006.01); B01J 35/04 (2006.01); B01J 23/22 (2006.01); B01D 53/94 (2006.01); B01D 53/86 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/50 (2006.01); B01J 23/52 (2006.01); B01J 29/14 (2006.01); B01J 29/56 (2006.01); B01J 29/76 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
B01J 35/04 (2013.01); B01D 53/8634 (2013.01); B01D 53/9418 (2013.01); B01D 53/9436 (2013.01); B01J 23/22 (2013.01); B01J 23/42 (2013.01); B01J 23/44 (2013.01); B01J 23/50 (2013.01); B01J 23/52 (2013.01); B01J 29/14 (2013.01); B01J 29/56 (2013.01); B01J 29/76 (2013.01); B01J 29/763 (2013.01); B01J 29/7615 (2013.01); F01N 3/106 (2013.01); F01N 3/2066 (2013.01); F01N 3/2828 (2013.01); B01D 2255/104 (2013.01); B01D 2255/106 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/9155 (2013.01); F01N 2330/06 (2013.01); F01N 2330/30 (2013.01); F01N 2370/04 (2013.01); F01N 2510/063 (2013.01); F01N 2610/02 (2013.01);
Abstract
A catalyst for oxidising ammonia comprises a selective catalytic reduction (SCR) catalyst and a composite heterogeneous extruded honeycomb having longitudinally extending parallel channels, which channels being defined in part by channel walls having a total longitudinal length, wherein the channel walls comprise a pore structure including a periodic arrangement of porous cells embedded in an inorganic matrix component, at least some of which porous cells are defined at least in part by an active interface layer of a catalytically active material comprising a precious metal supported on particles of a support material.