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    EXHAUST-GAS PURIFYING CATALYST
    1.
    发明公开
    EXHAUST-GAS PURIFYING CATALYST 审中-公开

    公开(公告)号：EP3689457A1

    公开(公告)日：2020-08-05

    申请号：EP18860962.2

    申请日：2018-09-11

    申请人： Cataler Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： NOMURA, Yasutaka ,  INODA, Satoru ,  MIYOSHI, Naoto ,  SATO, Akemi

    IPC分类号： B01J35/04 ,  B01D53/94 ,  B01J37/02 ,  F01N3/28

    摘要： The present invention provides to an exhaust gas purification that has: a base 11 of wall flow structure having inlet side cells 12 in which an end 13 on the exhaust gas inflow side is open and outlet side cells 14 in which an end 15 on the exhaust gas outflow side is open, and a porous partition wall that partitions the inlet side cell and the outlet side cell; and a first catalyst layer 20 and a second catalyst layer 30 disposed in the interior of the porous partition wall 16 so as to be in contact with the inlet side cells 12 and the outlet side cells 14, wherein either one of the first catalyst layer 20 and the second catalyst layer 30 contains an oxidation catalyst but does not contain a reduction catalyst, and the other one contains the reduction catalyst but does not contain the oxidation catalyst; and a ratio of the lengths of the first catalyst layer 20 and the second catalyst layer 30 differs between a surface of the porous partition wall 16 on the side in contact with the inlet side cells 12 and a surface on the side in contact with the outlet side cells 14.

    CATALYST FOR EXHAUST GAS PURIFICATION
    3.
    发明公开
    CATALYST FOR EXHAUST GAS PURIFICATION 审中-公开
    催化剂用于废气净化

    公开(公告)号：EP3254758A1

    公开(公告)日：2017-12-13

    申请号：EP16752472.7

    申请日：2016-02-16

    申请人： Cataler Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

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

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

    CPC分类号： B01D53/94 ,  B01J23/63 ,  B01J35/04 ,  B01J37/02

    摘要： 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 10 comprising a wall-flow-type substrate and first and second catalytic layers 261 and 262. The first catalytic layer 261 is provided to the interior of a partition wall 26, in contact with an entrance cell 24, from an exhaust inlet-side end 24a in the running direction, having a length L 1 less than L w . The second catalytic layer 262 is provided to the interior of a partition wall 26, in contact with an exit cell 25, from an exhaust outlet-side end 25a in the running direction, having a length L 2 less than L w . An internal portion of partition wall 26 in contact with entrance cell 24 has a substrate-exposing segment 26N 1 near the exhaust outlet-side end 25a.

    摘要翻译： 本发明提供一种能够降低压力损失并提高净化性能的排气净化催化剂。 本发明提供一种废气净化催化剂10，其包括壁流式基板以及第一和第二催化剂层261和262.第一催化剂层261设置在分隔壁26的内部，与入口单元24接触 从行进方向上的排气入口侧端部24a开始，具有小于Lw的长度L1。 第二催化剂层262从长度L2小于Lw的行进方向的排气出口侧端部25a设置在与排出室25接触的隔壁26的内部。 与入口单元24接触的分隔壁26的内部部分在排气出口侧端部25a附近具有衬底暴露段26N1。

    STRUCTURE
    4.
    发明公开
    STRUCTURE 审中-公开

    公开(公告)号：EP3730751A1

    公开(公告)日：2020-10-28

    申请号：EP20165615.4

    申请日：2020-03-25

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION

    发明人： SUGIURA, Koji ,  NISHIOKA, Hiromasa ,  MIYOSHI, Naoto ,  SATO, Akemi ,  IKEBE, Masatoshi ,  NAKASHIMA, Ryota ,  NOMURA, Yasutaka

    IPC分类号： F01N3/035 ,  B01D53/94 ,  F01N3/10 ,  F01N3/28

    摘要： A structure 1 used as an exhaust gas purification filter in which a pressure loss is reduced is provided. The structure 1 includes: a substrate 10 including a first end I, a second end J, and a porous partition wall 12 defining a first cell 14 and a second cell 60 extending between the first end I and the second end J; a first catalyst 30; and a second catalyst 50. In a first area X, the first catalyst 30 is disposed on a first surface 12a of the partition wall 12, and the partition wall 12 with the first catalyst 30 disposed on the partition wall 12 is impermeable to gas. In a second area Y, the first catalyst 30 is not provided, the second catalyst 50 is disposed in a region including at least a part inside the partition wall 12, the part facing the first cell, and the partition wall 12 with the second catalyst 50 disposed in the partition wall 12 is permeable to gas. In a third area Z, any of the first catalyst 30 or the second catalyst 50 is not provided, and the partition wall 12 is permeable to gas.

    EXHAUST GAS PURIFICATION CATALYST
    5.
    发明公开
    EXHAUST GAS PURIFICATION CATALYST 审中-公开

    公开(公告)号：EP3505229A1

    公开(公告)日：2019-07-03

    申请号：EP18213094.8

    申请日：2018-12-17

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION

    发明人： TANAKA, Atsushi ,  YOSHIDA, Takeru ,  MIYOSHI, Naoto ,  SATO, Akemi ,  NOMURA, Yasutaka ,  INODA, Satoru

    IPC分类号： B01D53/94 ,  B01D46/24

    摘要： The exemplary embodiments relate to an exhaust gas purification catalyst, in which exhaust gas purification performance is secured and an increase in pressure loss is suppressed, which is an exhaust gas purification catalyst, in which a porous filter wall of a substrate having a wall-flow structure is coated with a catalyst material containing an OSC material having oxygen storage capacity and a catalyst metal, wherein the density of percolation paths having percolation path diameters of 4 µm or more per unit area inside of the filter wall coated with the catalyst material is 100 paths/mm 2 to 1000 paths/mm 2 .

    EXHAUST GAS PURIFICATION CATALYST
    9.
    发明公开
    EXHAUST GAS PURIFICATION CATALYST 审中-公开

    公开(公告)号：EP3581271A1

    公开(公告)日：2019-12-18

    申请号：EP18771651.9

    申请日：2018-02-15

    申请人： Cataler Corporation

    发明人： ONOE, Ryota ,  NOMURA, Yasutaka ,  INODA, Satoru

    IPC分类号： B01J35/04 ,  B01D53/94 ,  B01J23/63 ,  F01N3/28

    摘要： 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.