公开(公告)号：US20180021767A1

公开(公告)日：2018-01-25

申请号：US15550252

申请日：2016-02-16

Applicant: CATALER CORPORATION

Inventor： Ryota ONOE ,  Shingo SAKAGAMI ,  Yasutaka NOMURA ,  Yuta MORISHITA ,  Junji KURIYAMA ,  Hiroshi SEKINE

IPC: B01J35/00 ,  B01J23/63 ,  B01J35/04 ,  B01D53/94

CPC classification number: B01J35/0006 ,  B01D53/94 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01D2255/9155 ,  B01J23/63 ,  B01J35/04 ,  B01J37/02 ,  F01N3/035 ,  F01N3/10 ,  F01N3/24 ,  F01N3/28 ,  F01N13/08 ,  F01N2250/02 ,  F01N2260/06 ,  F01N2370/02 ,  F01N2510/068 ,  F01N2510/0682 ,  F01N2510/0684

Abstract: An exhaust gas purification catalyst capable of stably maintaining and exhibiting excellent catalytic performance includes a wall-flow-type substrate, a first catalytic layer and a second catalytic layer. The first catalytic layer is provided to an internal portion of a partition wall in contact with an entrance cell. The second catalytic layer is provided to an internal portion of a partition wall in contact with an exit cell. The ratio (D2/D1) of the coating density D2 of the second catalytic layer to the coating density D1 of the first catalytic layer is 1.01 to 1.4.

公开(公告)号：US20170095798A1

公开(公告)日：2017-04-06

申请号：US15285635

申请日：2016-10-05

Applicant: CATALER CORPORATION

Inventor： Ryota ONOE ,  Yasutaka NOMURA ,  Yuta MORISHITA ,  Junji KURIYAMA ,  Hiroshi SEKINE

IPC: B01J23/63 ,  B01J35/10 ,  B01J35/04 ,  B01D53/94 ,  B01D46/24

CPC classification number: B01J23/63 ,  B01D46/2429 ,  B01D53/94 ,  B01D2046/2437 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/915 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01J35/04 ,  B01J35/1052 ,  F01N3/035 ,  F01N3/101 ,  F01N13/0097 ,  F01N2330/48 ,  Y02T10/22

Abstract: The exhaust gas purification device includes: a substrate of wall flow structure having inlet cells, outlet cells and a porous partition wall; and a catalyst layer provided in at least part of internal pores of the partition wall and held on the surface of the internal pores. The relationship between an average filling factor A of the catalyst layer held in pores having a pore diameter of 5 μm to less than 10 μm, an average filling factor B of the catalyst layer held in pores having a pore diameter of 10 μm to less than 20 μm and an average filling factor C of the catalyst layer held in pores having a pore diameter of 20 μm to less than 30 μm, among the internal pores of the partition wall 16 in which the catalyst layer is held, satisfies the following expression: A

公开(公告)号：US20180028972A1

公开(公告)日：2018-02-01

申请号：US15550070

申请日：2016-02-16

Applicant: CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ichiro KITAMURA ,  Keiichi NARITA ,  Yasutaka NOMURA ,  Ryota ONOE ,  Yuta MORISHITA ,  Junji KURIYAMA ,  Hiroshi SEKINE ,  Akihito INOUE ,  Daisuke OCHIAI ,  Jun SAWADA ,  Naoto MIYOSHI ,  Masahiko TAKEUCHI ,  Akemi SATO ,  Atsushi TANAKA

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

CPC classification number: B01D53/94 ,  B01J23/63 ,  B01J35/04 ,  B01J37/02

Abstract: Provided is an exhaust gas purification catalyst that combines reduction of pressure loss and enhancement of purification performance. This invention provides an exhaust gas purification catalyst comprising a wall-flow-type substrate and first and second catalytic layers. The first catalytic layer is provided to the interior of a partition wall, in contact with an entrance cell, from an exhaust inlet-side end in the running direction, having a length L1 less than Lw. The second catalytic layer is provided to the interior of a partition wall, in contact with an exit cell, from an exhaust outlet-side end in the running direction, having a length L2 less than Lw. An internal portion of partition wall in contact with entrance cell has a substrate-exposing segment near the exhaust outlet-side end.

公开(公告)号：US20170122176A1

公开(公告)日：2017-05-04

申请号：US15333769

申请日：2016-10-25

Applicant: CATALER CORPORATION

Inventor： Yasutaka NOMURA ,  Shingo SAKAGAMI ,  Ryota ONOE ,  Yuta MORISHITA ,  Junji KURIYAMA ,  Hiroshi SEKINE

IPC: F01N3/28 ,  B01D46/24 ,  B01J35/04 ,  B01J23/10 ,  B01J35/00 ,  B01D53/94 ,  B01J23/46

CPC classification number: F01N3/2842 ,  B01D46/2474 ,  B01D53/94 ,  B01D53/944 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/407 ,  B01D2255/908 ,  B01D2255/9155 ,  B01D2258/014 ,  B01J23/10 ,  B01J23/462 ,  B01J23/464 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/04 ,  F01N3/035 ,  F01N3/101 ,  F01N3/2828 ,  F01N2250/02 ,  F01N2330/06 ,  Y02T10/22

Abstract: The exhaust gas purification device according to the present invention includes a substrate of wall flow structure having a porous partition wall 16, and a catalyst layer held in internal pores of the partition wall 16. The catalyst layer contains, as a carrier, an OSC material having oxygen storage capacity. In the thickness direction of the partition wall 16, the porosity of the internal pores in inlet regions 16a is 25% or higher, and an average occupation ratio of the catalyst layer held in the internal pores is 75% or lower.

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：US20180021726A1

公开(公告)日：2018-01-25

申请号：US15550078

申请日：2016-02-16

Applicant: CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryota ONOE ,  Shingo SAKAGAMI ,  Yasutaka NOMURA ,  Yuta MORISHITA ,  Junji KURIYAMA ,  Hiroshi SEKINE ,  Daisuke OCHIAI ,  Naoto MIYOSHI ,  Masahiko TAKEUCHI ,  Akemi SATO

IPC: B01D53/94 ,  B01J35/00 ,  B01J23/63 ,  B01J35/04

CPC classification number: B01D53/945 ,  B01D53/94 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2255/9155 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/0864 ,  F01N3/10 ,  F01N3/281 ,  F01N2330/02 ,  F01N2510/0682 ,  F01N2510/0684

Abstract: A wall-flow-type exhaust gas purification catalyst with an oxygen storage material that has an increased OSC and exhibits its OSC without a compromise provides an exhaust gas purification catalyst having a wall-flow-type substrate, a first catalytic layer and a second catalytic layer. The first catalytic layer is provided to an internal portion of a partition wall in contact with an entrance cell. The second catalytic layer is provided to an internal portion of a partition wall in contact with an exit cell. Each of the first and second catalytic layers has an oxygen storage material. The ratio (D1/D2) of the coating density D1 of the first catalytic layer to the coating density D2 of the second catalytic layer is 1.1 to 1.8.