公开(公告)号：US20200276567A1

公开(公告)日：2020-09-03

申请号：US16479853

申请日：2018-02-15

Applicant: CATALER CORPORATION

Inventor： Ryota ONOE ,  Yasutaka NOMURA ,  Satoru INODA

IPC: B01J35/00 ,  B01J23/44 ,  B01J23/46 ,  B01J35/04 ,  B01D53/94 ,  F01N3/28 ,  F01N3/10

Abstract: Provided is an exhaust gas purification catalyst that allows enhancing purification performance on exhaust gas. The exhaust gas purification catalyst according to the present invention has a substrate 10 of wall flow structure having a porous partition wall 16 which partitions inlet cells 12 and outlet cells 14, a first catalyst layer 20 formed on the surface of the partition wall 16, on the side facing the inlet cells 12, and a second catalyst layer 30 formed in the interior of the partition wall 16, at least in a region facing the outlet cells 14.

公开(公告)号：US20200011221A1

公开(公告)日：2020-01-09

申请号：US16490985

申请日：2018-03-16

Applicant: CATALER CORPORATION

Inventor： Haruka MAKINO ,  Yasutaka NOMURA ,  Satoru INODA ,  Sho HOSHINO ,  Ryota ONOE

IPC: F01N3/035 ,  F01N3/022 ,  F01N3/28

Abstract: An exhaust gas cleaning catalyst that has: a substrate having a wall flow structure, wherein an entry side cell, in which the end part on an exhaust gas inflow side is open, and an exit side cell, in which the end part on the exhaust gas outflow side is open, are divided by a porous dividing wall; and a first catalyst layer that includes a metal catalyst and is disposed within the dividing wall so as to be in contact with the exit side cell and not in contact with the entry side cell, and no catalyst layer is provided in the region in contact with the entry side cell.

公开(公告)号：US20200276568A1

公开(公告)日：2020-09-03

申请号：US16649453

申请日：2018-10-12

Applicant: CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Haruka MAKINO ,  Yasutaka NOMURA ,  Satoru INODA ,  Kenji NAKAJIMA ,  Naoto MIYOSHI ,  Takeru YOSHIDA ,  Akemi SATO

IPC: B01J35/04 ,  B01J35/00 ,  B01J23/56 ,  B01D53/94 ,  F01N3/28

Abstract: An exhaust gas purifying catalyst includes: a wall-flow structure substrate including an inlet cell, an outlet cell, and a porous partition; a first catalyst layer formed inside the partition such that a thickness of the first catalyst layer is between 40% and 60%, inclusive, of an overall thickness Tw of the partition; and a second catalyst layer formed inside the partition such that the second catalyst layer extends across an entire region of the partition in a thickness direction thereof.

公开(公告)号：US20190120104A1

公开(公告)日：2019-04-25

申请号：US16090723

申请日：2017-03-21

Applicant: CATALER CORPORATION

Inventor： Satoru INODA ,  Yasutaka NOMURA ,  Junji KURIYAMA ,  Naoto MIYOSHI ,  Masahiko TAKEUCHI ,  Akemi SATO

IPC: F01N3/022 ,  F01N3/035 ,  F01N3/10 ,  F01N3/28 ,  B01J23/46 ,  B01J23/42 ,  B01J23/44 ,  B01J35/04

Abstract: An exhaust gas purification device includes: a substrate of wall-flow structure having an inlet cell, an outlet cell and a porous partition wall; an upstream catalyst layer provided inside the partition wall and disposed in an upstream portion, including an exhaust gas inflow end section, of the substrate; and a downstream catalyst layer provided inside the partition wall and disposed in a downstream portion, including an exhaust gas outflow end section, of the substrate. The downstream catalyst layer contains a carrier, and Rh supported on the carrier. The upstream catalyst layer contains a carrier, and Pd and/or Pt supported on the carrier.

公开(公告)号：US20200263587A1

公开(公告)日：2020-08-20

申请号：US16647004

申请日：2018-09-11

Applicant: CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yasutaka NOMURA ,  Satoru INODA ,  Naoto MIYOSHI ,  Akemi SATO

IPC: F01N3/28 ,  F01N3/035

Abstract: An exhaust gas purification including: a base of wall flow structure having inlet side cells wherein an end on the exhaust gas inflow side is open and outlet side cells wherein an end on the exhaust gas outflow side is open, and a porous partition wall that partitions the side cells; and first and second catalyst layers disposed in the interior of the porous partition wall so as to be in contact with the side cells, wherein either of the catalyst layers contains an oxidation catalyst but does not contain a reduction catalyst, and the other contains the reduction catalyst but does not contain the oxidation catalyst; and a ratio of the lengths of the catalyst layers differs between a surface of the porous partition wall on the side in contact with the inlet side cells and a surface on the side in contact with the outlet side cells.

公开(公告)号：US20180280878A1

公开(公告)日：2018-10-04

申请号：US15763373

申请日：2016-09-23

Applicant: CATALER CORPORATION

Inventor： Satoru INODA ,  Satoshi MATSUEDA ,  Kenichi TAKI ,  Akimasa HIRAI

IPC: B01D53/94 ,  B01J23/46 ,  B01J23/63 ,  F01N3/10 ,  B01J23/44

Abstract: A catalyst for exhaust gas purification, which is capable of effectively purifying an exhaust gas. A catalyst for exhaust gas purification, which includes first catalyst particles, second catalyst particles and carrier particles that support the first catalyst particles and the second catalyst particles. The first catalyst particles are Pd particles or Pd—Rh alloy particles; and the second catalyst particles are Pd—Rh alloy particles. The molar ratio of Rh to the total of Pd and Rh in the first catalyst particles is 0.50 times or less the molar ratio of Rh to the total of Pd and Rh in the second catalyst particles.

公开(公告)号：US20160236181A1

公开(公告)日：2016-08-18

申请号：US15030448

申请日：2014-12-08

Applicant: CATALER CORPORATION

Inventor： Satoru INODA ,  Akimasa HIRAI ,  Kenichi TAKI ,  Satoshi MATSUEDA

IPC: B01J23/46 ,  B01J23/58 ,  B01J35/04 ,  B01J23/63

CPC classification number: B01J23/464 ,  B01D53/945 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9202 ,  B01J21/066 ,  B01J23/44 ,  B01J23/58 ,  B01J23/63 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/04 ,  B01J37/0215 ,  B01J37/0219 ,  B01J37/343 ,  Y02T10/22

Abstract: An exhaust cleaning catalyst, with which precious metal sintering is inhibited and which has greater exhaust cleaning abilities, has a substrate and a catalyst coating layer provided on the substrate. The catalyst coating layer has a precious metal that serves as an oxidation and/or reduction catalyst. The precious metal has Rh-containing metal particles in which rhodium (Rh) coexists with a base metal selected among platinum group elements excluding rhodium. The Rh-containing metal particles have an average rhodium content of 0.1% to 5% by mole with the total amount of the base metal and rhodium being 100% by mole.

Abstract translation: 贵金属烧结被抑制并且具有更大的排气清洁能力的排气净化催化剂具有设置在基板上的基板和催化剂涂层。 催化剂涂层具有用作氧化和/或还原催化剂的贵金属。 贵金属具有含Rh的金属颗粒，其中铑（Rh）与选自除铑之外的铂族元素中的贱金属共存。 含Rh金属颗粒的平均铑含量为0.1〜5摩尔％，贱金属和铑的总量为100摩尔％。