公开(公告)号：US20230294044A1

公开(公告)日：2023-09-21

申请号：US18014273

申请日：2021-07-06

Applicant: CATALER CORPORATION

Inventor： Kohei TAKASAKI ,  Tatsuya OHASHI ,  Shunsuke OISHI ,  Ryota ONOE ,  Junichi HORI ,  Ryosuke TAKASU ,  Chihiro KASUYA

IPC: B01J37/02 ,  B01J35/04 ,  B01J20/16 ,  B01J23/46

CPC classification number: B01J37/0244 ,  B01J20/165 ,  B01J23/464 ,  B01J35/04 ,  B01J37/0225 ,  B01J37/0228 ,  B01J37/0246

Abstract: Provided is an exhaust gas purification catalyst system comprising, in the following order, from the upstream side of an exhaust gas flow: a first exhaust gas purification catalyst apparatus 100 including a metal honeycomb substrate 110 and a first catalyst coat layer 120 on the metal honeycomb substrate 110; a heater 300; and a second exhaust purification catalyst apparatus 200 including a cordierite honeycomb substrate 210 and a second catalyst coat layer 220 on the cordierite honeycomb substrate 210, wherein the first catalyst coat layer 120 contains an adsorbent 130 that can adsorb one or two or more among NOx, HC and CO, and the second catalyst coat layer 220 contains inorganic oxide particles 230 and catalyst precious metal particles 240 supported on the inorganic oxide particles 230.

公开(公告)号：US20200230586A1

公开(公告)日：2020-07-23

申请号：US16633522

申请日：2018-06-22

Applicant: CATALER CORPORATION

Inventor： Yuki FUJIMURA ,  Akio KUBOTA ,  Naoki YOKOYAMA ,  Junichi HORI

IPC: B01J35/04 ,  F01N3/28

Abstract: The invention provides: an exhaust-gas-purifying metal substrate capable of achieving both low pressure loss and high purification performance; and an exhaust gas purification device using the metal substrate. The invention relates to an exhaust-gas-purifying perforated metal substrate in which a corrugated foil and a flat foil are layered and made into a cylindrical shape, wherein: the perforated metal substrate includes from 50/in2 to 800/in2 of cells; the corrugated foil includes a plurality of first holes having an area that is from 2.0 to 50 times the average opening area of the cells; the flat foil includes a plurality of second holes having an area that is from 3.0 to 100 times the average opening area of the cells; and the average value of the area of the first holes in the corrugated foil is smaller than the average value of the area of the second holes in the flat foil.

公开(公告)号：US20250121359A1

公开(公告)日：2025-04-17

申请号：US18834002

申请日：2023-01-05

Applicant: CATALER CORPORATION

Inventor： Shunsuke OISHI ,  Ryota ONOE ,  Junichi HORI ,  Ryosuke TAKASU ,  Masaya ITO ,  Yu ONOHARA ,  Hiromi TOGASHI

IPC: B01J23/58 ,  B01D53/94 ,  B01J23/63 ,  B01J35/56 ,  B01J37/02 ,  F01N3/28

Abstract: An exhaust gas purification catalytic device having a first catalyst coating layer and a second catalyst coating layer on a substrate, wherein the first catalyst coating layer includes first inorganic oxide particles and first catalytic noble metal particles, the second catalyst coating layer includes second inorganic oxide particles and second catalytic noble metal particles, the first inorganic oxide particles include a composite oxide support containing an OSC material and an alkaline earth metal oxide, the first catalytic noble metal particles include one or two selected from Pt and Pd, the second inorganic oxide particles include the OSC material, the second catalytic noble metal particles include Rh, the first catalyst coating layer is substantially free of Rh, and the second catalyst coating layer is substantially free of Pt, Pd, and alkaline earth metal oxides.