公开(公告)号：US20180133648A1

公开(公告)日：2018-05-17

申请号：US15571801

申请日：2017-03-13

Applicant: CATALER CORPORATION

Inventor： Hiroshi SEKINE ,  Suguru MATSUI

IPC: B01D53/94 ,  B01J35/04 ,  F01N3/28

CPC classification number: B01D53/94 ,  B01D53/9409 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2255/9202 ,  B01J29/85 ,  B01J35/04 ,  F01N3/035 ,  F01N3/2839 ,  F01N2510/0682

Abstract: An exhaust gas purification device includes: a wall-flow-structured base material having input-side cells, output-side cells, and a porous partition wall; and a catalyst layer formed inside the partition wall contacting the input-side cells or the output-side cells. The catalyst layer is formed in a region extending from the surface of the partition wall and covering at least 90% of the thickness of the partition wall, and is held by the surfaces of the inside pores of the partition wall in the region. Further, the average filling ratios A, B, and C of the catalyst layer held by pores in respective pore size ranges satisfy a specific relationship.

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：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.

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.