公开(公告)号：US20250018384A1

公开(公告)日：2025-01-16

申请号：US18712796

申请日：2022-11-30

Applicant: CATALER CORPORATION

Inventor： Takehiro AMADA ,  Hiroto IMAI ,  Keigo HORI ,  Daisuke SUGIOKA ,  Akiya CHIBA

IPC: B01J35/00 ,  B01D53/94 ,  B01J29/70 ,  B01J29/76 ,  B01J35/57 ,  B01J37/02 ,  B01J37/30

Abstract: An exhaust gas purification catalyst device includes a substrate and one or more catalyst coating layers on the substrate, wherein the one or more catalyst coating layers include copper ion-exchanged zeolite and alkali-containing zeolite containing one or more metals selected from among alkali metals and alkaline earth metals, the exhaust gas purification catalyst device satisfying either of the following conditions (A) and (B): (A) both the copper ion-exchanged zeolite and the alkali-containing zeolite are contained in one of the catalyst coating layers, and (B) the catalyst coating layer includes a first catalyst coating layer containing the copper ion-exchanged zeolite and a second catalyst coating layer containing the alkali-containing zeolite, with the first catalyst coating layer and second catalyst coating layer being layered together in direct contact.

公开(公告)号：US20240335825A1

公开(公告)日：2024-10-10

申请号：US18575961

申请日：2022-07-07

Applicant: CATALER CORPORATION

Inventor： Takehiro AMADA ,  Daisuke SUGIOKA ,  Keigo HORI ,  Hiroto IMAI

IPC: B01J29/76 ,  B01D53/94 ,  B01J37/04 ,  B01J37/08 ,  F01N3/20 ,  F01N3/28

CPC classification number: B01J29/763 ,  B01D53/9418 ,  B01J37/04 ,  B01J37/08 ,  F01N3/2066 ,  F01N3/2803 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2257/404 ,  B01D2258/01 ,  B01J2229/16 ,  B01J2229/186 ,  F01N2370/04

Abstract: An exhaust gas purification catalyst containing Cu-CHA zeolite, wherein the Cu-CHA zeolite has a silica-to-alumina ratio (SAR) of no higher than 20.0 and includes an alkali metal and an alkaline earth metal.