US 11,794,172 B2
Exhaust treatment system including nickel-containing catalyst
Rachael Jean Harrington, South Lyon, MI (US); Eva Thanasiu, Trenton, MI (US); Hungwen Jen, Troy, MI (US); Giovanni Cavataio, Dearborn, MI (US); and Jeffrey Scott Hepburn, Birmingham, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Aug. 30, 2021, as Appl. No. 17/446,425.
Application 17/446,425 is a division of application No. 16/512,305, filed on Jul. 15, 2019, granted, now 11,167,272.
Prior Publication US 2021/0387170 A1, Dec. 16, 2021
Int. Cl. B01J 21/04 (2006.01); B01J 23/10 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 23/755 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); B01D 53/94 (2006.01); B01D 46/00 (2022.01); F01N 3/035 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01)
CPC B01J 23/755 (2013.01) [B01D 46/0027 (2013.01); B01D 53/945 (2013.01); B01J 21/04 (2013.01); B01J 23/10 (2013.01); B01J 23/42 (2013.01); B01J 23/44 (2013.01); B01J 23/464 (2013.01); B01J 35/0006 (2013.01); B01J 35/0066 (2013.01); B01J 35/04 (2013.01); F01N 3/035 (2013.01); F01N 3/101 (2013.01); F01N 3/2825 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/20753 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/908 (2013.01); B01D 2255/9022 (2013.01); F01N 2330/06 (2013.01); F01N 2370/02 (2013.01); F01N 2510/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for treating exhaust gas in a vehicle, comprising:
flowing the exhaust gas through a first emissions treatment device, the first emissions treatment device comprising a first three-way catalyst, the first three-way catalyst comprising at least one precious metal in a washcoat; and
flowing the exhaust gas through a second emissions treatment device, the second emissions treatment device comprising a cerium-based support material and a transition metal catalyst that catalyzes decomposition of ammonia in the exhaust gas;
wherein the transition metal catalyst comprises nickel and copper; and
nickel in the transition metal catalyst is included in a monatomic layer loaded on the cerium-based support material.