US 12,440,827 B2
Catalyst for simultaneously inhibiting emission of ammonia and nitrous oxide
Iljeong Heo, Daejeon (KR); Young Woo You, Daejeon (KR); Yun Ho Jeong, Daejeon (KR); Ji Hoon Park, Daejeon (KR); Jin Hee Lee, Daejeon (KR); Soo Min Kim, Daejeon (KR); and Tae Sun Chang, Daejeon (KR)
Assigned to KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
Appl. No. 17/756,397
Filed by KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
PCT Filed Nov. 25, 2020, PCT No. PCT/KR2020/016861
§ 371(c)(1), (2) Date May 24, 2022,
PCT Pub. No. WO2021/107611, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 10-2019-0154733 (KR), filed on Nov. 27, 2019.
Prior Publication US 2023/0001387 A1, Jan. 5, 2023
Int. Cl. B01J 21/04 (2006.01); B01D 53/94 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 21/12 (2006.01); B01J 23/02 (2006.01); B01J 23/10 (2006.01); B01J 23/46 (2006.01); B01J 23/56 (2006.01); B01J 23/58 (2006.01); B01J 23/63 (2006.01); B01J 23/755 (2006.01); B01J 23/89 (2006.01); B01J 35/56 (2024.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01)
CPC B01J 23/468 (2013.01) [B01D 53/9427 (2013.01); B01D 53/9436 (2013.01); B01D 53/945 (2013.01); B01J 35/56 (2024.01); B01J 37/0215 (2013.01); B01J 37/08 (2013.01); F01N 3/101 (2013.01); F01N 3/106 (2013.01); F01N 3/2803 (2013.01); F01N 3/2842 (2013.01); B01D 2255/1026 (2013.01); B01D 2255/1028 (2013.01); F01N 2370/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A catalyst for simultaneously inhibiting the emission of ammonia and nitrous oxide, comprising an iridium-ruthenium catalytic component doped onto a three-way catalyst (TWC) supported on a honeycomb substrate,
wherein the three-way catalyst comprises a support that includes a mixture of Al2O3 and at least one selected from a group consisting of SiO2, CeO2, CexZr1-xO2, Pr6O11, NiO, and BaO, wherein the value of x is in the range of 0<x<1, and
wherein the support, which comprises any one of Pt/Rh, Pd/Rh, or Pt/Pd/Rh, is doped with the iridium-ruthenium catalytic component.