	US 11,890,575 B2
	Exhaust treatment system for ammonia-fueled vehicles
Shiang Sung, Iselin, NJ (US); and Pushkaraj R. Patwardhan, Iselin, NJ (US)
Assigned to BASF Corporation, Florham Park, NJ (US)
Filed by BASF Corporation, Florham Park, NJ (US)
Filed on Jun. 17, 2022, as Appl. No. 17/807,392.
Application 17/807,392 is a continuation in part of application No. PCT/US2020/065253, filed on Dec. 16, 2020.
Claims priority of provisional application 62/950,497, filed on Dec. 19, 2019.
Prior Publication US 2022/0323905 A1, Oct. 13, 2022
Int. Cl. B01D 53/94 (2006.01); B01J 23/58 (2006.01); B01J 23/656 (2006.01); B01J 21/04 (2006.01); B01J 29/68 (2006.01); B01J 23/44 (2006.01); B01J 23/34 (2006.01); B01J 21/12 (2006.01); B01J 29/76 (2006.01); B01J 35/00 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01)

CPC B01D 53/9477 (2013.01) [B01D 53/944 (2013.01); B01D 53/9418 (2013.01); B01D 53/9468 (2013.01); B01D 53/9472 (2013.01); B01D 53/9481 (2013.01); B01J 21/04 (2013.01); B01J 21/12 (2013.01); B01J 23/34 (2013.01); B01J 23/44 (2013.01); B01J 23/58 (2013.01); B01J 23/6562 (2013.01); B01J 29/68 (2013.01); B01J 29/763 (2013.01); B01J 35/0006 (2013.01); F01N 3/106 (2013.01); F01N 3/2066 (2013.01); F01N 3/2803 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/2042 (2013.01); B01D 2255/2073 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/50 (2013.01); B01D 2255/904 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/9032 (2013.01); B01D 2255/91 (2013.01); B01D 2255/911 (2013.01); F01N 2370/02 (2013.01)]

24 Claims

1. An emission treatment system for NO_xabatement in an exhaust stream of an ammonia-fueled engine, the emission treatment system comprising:

a selective catalytic reduction (SCR) catalyst disposed on a substrate in fluid communication with the exhaust stream of the ammonia-fueled engine; and

an oxidation catalyst disposed on a substrate positioned upstream and/or downstream of the SCR catalyst and in fluid communication with the exhaust stream and the SCR catalyst, wherein the oxidation catalyst is a diesel oxidation catalyst (DOC).