公开(公告)号：US20190201875A1

公开(公告)日：2019-07-04

申请号：US16332115

申请日：2017-09-11

Applicant: CATALER CORPORATION

Inventor： Keigo Hori ,  Norihiko AONO ,  Daisuke OKI ,  Yuya KAWANO

IPC: B01J23/66 ,  B01D53/94 ,  B01J23/50 ,  B01J37/04 ,  B01J37/08 ,  B01J37/02 ,  B01J21/04 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28

CPC classification number: B01J23/66 ,  B01D53/94 ,  B01D53/9418 ,  B01D2255/104 ,  B01D2255/20792 ,  B01D2255/2092 ,  B01J21/04 ,  B01J23/50 ,  B01J32/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/0215 ,  B01J37/04 ,  B01J37/08 ,  F01N3/10 ,  F01N3/20 ,  F01N3/2803 ,  Y02A50/2325 ,  Y02T10/24

Abstract: The exhaust gas purification catalyst disclosed here is an exhaust gas purification catalyst disposed in the exhaust pipe of an internal combustion engine to purify nitrogen oxides contained in exhaust gas discharged from the internal combustion engine, provided with a silver alumina catalyst comprising at least alumina as a catalyst and silver supported on this alumina, wherein, in the silver alumina catalyst, the ratio of the peak intensity at a wave number of 1595 cm−1 to the peak intensity at a wave number of 1613 cm−1 by the pyridine IR method is at least 0.3, and the carried amount of the silver is 1.0 wt % to 6.0 wt % given 100 wt % as the total amount of the silver alumina catalyst.

公开(公告)号：US20230149907A1

公开(公告)日：2023-05-18

申请号：US17912151

申请日：2021-04-02

Applicant: CATALER CORPORATION

Inventor： Takuto ARAKAWA ,  Yuya KAWANO ,  Tsubasa NANJO ,  Yoshinori YAMASHITA

IPC: B01J23/76 ,  B01D53/94 ,  B01J21/04 ,  B01J29/72

CPC classification number: B01J23/76 ,  B01D53/9418 ,  B01J21/04 ,  B01J29/723 ,  B01D2255/50 ,  B01D2255/2092 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2257/402 ,  B01D2258/012

Abstract: A gas purification catalyst device comprises: a substrate; and one or more catalyst layers on the substrate. Among the one or more catalyst layers, at least one catalyst layer contains both Cu-CHA-type zeolite particles and iron-supporting metal oxide particles in which iron is supported on metal oxide particles.

公开(公告)号：US20230076536A1

公开(公告)日：2023-03-09

申请号：US17801349

申请日：2021-02-10

Applicant: CATALER CORPORATION

Inventor： Tsubasa NANJO ,  Yuya KAWANO ,  Takuto ARAKAWA ,  Yoshinori YAMASHITA ,  Shunsuke OHISHI ,  Ryosuke TAKASU

IPC: B01J23/42 ,  B01J29/04 ,  B01D53/94 ,  B01J23/44 ,  B01J35/00

Abstract: An exhaust gas purification catalyst device including a substrate and an SCR catalyst layer on the substrate, the substrate containing catalyst precious metal particles directly supported on the substrate, the catalyst precious metal particles containing Pt, and the catalyst precious metal particles having an average particle diameter of 30 to 120 nm inclusive.