US 12,257,573 B2
Multifunctional catalyst for hydrocarbon oxidation and selective catalytic reduction of NOx
Kevin Beard, Iselin, NJ (US); Joseph A. Patchett, Iselin, NJ (US); Edgar Viktor Huennekes, Hannover (DE); Jan Martin Becker, Hannover (DE); and John K. Hochmuth, Raritan, NJ (US)
Assigned to BASF Mobile Emissions Catalysts LLC, Iselin, NJ (US)
Appl. No. 17/753,561
Filed by BASF MOBILE EMISSIONS CATALYSTS LLC, Iselin, NJ (US)
PCT Filed Sep. 29, 2020, PCT No. PCT/EP2020/077213
§ 371(c)(1), (2) Date Mar. 8, 2022,
PCT Pub. No. WO2021/063939, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 19200513 (EP), filed on Sep. 30, 2019.
Prior Publication US 2024/0001354 A1, Jan. 4, 2024
Int. Cl. B01J 35/56 (2024.01); B01D 53/72 (2006.01); B01D 53/94 (2006.01); B01J 21/08 (2006.01); B01J 23/10 (2006.01); B01J 23/30 (2006.01); B01J 23/44 (2006.01); B01J 23/84 (2006.01); B01J 23/847 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); F01N 3/02 (2006.01); F01N 3/022 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01)
CPC B01J 35/19 (2024.01) [B01D 53/72 (2013.01); B01D 53/9418 (2013.01); B01D 53/9468 (2013.01); B01J 21/08 (2013.01); B01J 23/10 (2013.01); B01J 23/30 (2013.01); B01J 23/44 (2013.01); B01J 23/8472 (2013.01); B01J 35/56 (2024.01); B01J 37/0201 (2013.01); B01J 37/0228 (2013.01); B01J 37/0244 (2013.01); B01J 37/0248 (2013.01); B01J 37/082 (2013.01); F01N 3/0222 (2013.01); F01N 3/106 (2013.01); F01N 3/2066 (2013.01); F01N 3/2828 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/9155 (2013.01); B01D 2257/404 (2013.01); B01D 2257/702 (2013.01); B01D 2258/012 (2013.01); F01N 2370/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A catalyst for the oxidation of hydrocarbon and the selective catalytic reduction of nitrogen oxides, the catalyst comprising:
(i) a substrate comprising an inlet end, an outlet end, a substrate axial length extending from the inlet end to the outlet end, and a plurality of passages defined by internal walls of the substrate extending therethrough; and
(ii) a coating disposed on the surface of the internal walls of the substrate, wherein the surface defines the interface between the passages and the internal walls, wherein the coating comprises a platinum group metal component supported on a first oxidic material and further comprises a mixed oxide of vanadium and one or more of iron, erbium, bismuth, cerium, europium, gadolinium, holmium, lanthanum, lutetium, neo-dymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytter-bium, yttrium, molybdenum, tungsten, manganese, cobalt, nickel, copper, aluminum, and antimony, and wherein the mixed oxide is supported on a second oxidic material,
wherein the coating according to (ii) consists of:
(ii.1) a bottom coat comprising the mixed oxide supported on the second oxidic material; and
(ii.2) a top coat comprising the platinum group metal component supported on the first oxidic material;
wherein the bottom coat is disposed on the surface of the internal walls of the substrate over x % of the substrate axial length, wherein x ranges from 90 to 100; and
wherein the top coat is disposed on the bottom coat over y % of the substrate axial length, wherein y ranges from 90 to 100.