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：US20220176352A1

公开(公告)日：2022-06-09

申请号：US17598994

申请日：2020-03-03

Applicant: CATALER CORPORATION

Inventor： Tatsuya OHASHI ,  Kohei TAKASAKI

IPC: B01J23/44 ,  F01N3/10 ,  B01J23/46 ,  B01J21/04 ,  B01J35/00 ,  B01J37/02

Abstract: An exhaust gas purification catalyst device having a substrate, a first catalyst coating layer on the substrate, and a second catalyst coating layer on the first catalyst coating layer. The first catalyst coating layer includes inorganic oxide particles, palladium carried on the inorganic oxide particles, and a barium compound. The second catalyst coating layer includes alumina particles and rhodium carried by the alumina particles. The ratio (MBa/MRh) between the mass (MBa) of barium in the first catalyst coating layer and the mass (MRh) of rhodium in the second catalyst coating layer is 5.0-60.0 inclusive.

公开(公告)号：US20200346200A1

公开(公告)日：2020-11-05

申请号：US16758561

申请日：2018-09-14

Applicant: CATALER CORPORATION

Inventor： Kohei TAKASAKI ,  Yuji MATSUHISA ,  Nobuaki BANDO ,  Hiroshi ONO ,  Tomohito MIZUKAMI ,  Tsuyoshi ITO

IPC: B01J37/02 ,  F01N3/28 ,  B01D53/94 ,  B01J23/63 ,  B01J35/04 ,  B01J37/08

Abstract: An exhaust gas purification device has a metal substrate and a catalyst layer on the metal substrate, wherein the metal substrate is a wound body of one or a plurality of metal foils, at least one of the one or a plurality of metal foils is a perforated metal foil having holes, the catalyst layer contains noble metal catalyst particles and a carrier for carrying the noble metal catalyst particles, and more noble metal catalyst particles are present in the catalyst layer on side surfaces of holes, which face an upstream side of an exhaust gas flow, than in the catalyst layer on side surfaces of holes, which face a downstream side of the exhaust gas flow.

公开(公告)号：US20230114106A1

公开(公告)日：2023-04-13

申请号：US17912140

申请日：2021-03-17

Applicant: CATALER CORPORATION

Inventor： Kohei TAKASAKI ,  Tatsuya OHASHI ,  Shunsuke OISHI

IPC: B01J29/74 ,  B01J23/44 ,  B01J21/04 ,  B01J35/10 ,  B01J35/02 ,  B01D53/94

Abstract: An exhaust gas purification catalyst device comprising a base material and a catalyst coating layer provided on the base material, wherein the catalyst coating layer contains zeolite particles, inorganic oxide particles other than the zeolite particles, and a catalyst precious metal, and the ratio dZEO/dOX between the average particle diameter dZEO of the zeolite particles and the average particle diameter dOX of the inorganic oxide particles other than the zeolite particles is 3.4 or less.

公开(公告)号：US20240342654A1

公开(公告)日：2024-10-17

申请号：US18701056

申请日：2022-10-18

Applicant: CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kohei TAKASAKI ,  Keisuke MURAWAKI ,  Masatoshi IKEBE ,  Takeshi MORISHIMA ,  Takaya OTA ,  Koji SUGIURA ,  Takeshi HIRABAYASHI ,  Akemi SATOU

IPC: B01D53/94 ,  B01D46/24 ,  B01J21/04 ,  B01J23/10 ,  B01J35/56 ,  B01J35/57 ,  B01J37/02

CPC classification number: B01D53/94 ,  B01D46/2418 ,  B01J21/04 ,  B01J23/10 ,  B01J35/56 ,  B01J35/57 ,  B01J37/0215 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/908 ,  B01D2255/9155 ,  B01D2258/012 ,  B01D2258/014

Abstract: A wall-flow type particulate filter includes: a wall-flow type base material; and a coat layer formed on the base material. The base material includes: an inlet cell open only at an exhaust gas inlet end; an outlet cell open only at an exhaust gas outlet end; and a partition partitioning the inlet and outlet cells and having multiple pores through which the inlet and outlet cells communicate with each other. The coat layer is provided for the wall surfaces of the pores and contains a first inorganic oxide and a second inorganic oxide. The mean particle diameter Da of the first inorganic oxide is larger than the mean particle diameter Db of the second inorganic oxide. The weight ratio of the second inorganic oxide is designed to be from 10% to 50% inclusive when the total weight ratio of the first inorganic oxide and the second inorganic oxide is 100%.