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公开(公告)号：US10981113B2
公开(公告)日：2021-04-20
申请号：US16644455
申请日：2018-09-03
申请人： CATALER CORPORATION
发明人： Ryota Onoe , Yosuke Toda , Taku Miura
IPC分类号： B01D53/94 , B01J35/10 , B01D46/00 , F01N3/022 , F01N3/035 , B01D46/24 , F01N3/10 , F01N3/28 , B01J35/04
摘要： Provided is an exhaust gas purification catalyst body that can improve exhaust gas purification performance while maintaining favorable PM collection performance. The exhaust gas purification catalyst body includes a base of a wall flow structure having an inlet side cell, an outlet side cell, and porous partition wall, and a catalyst layer that is formed in the partition wall that is in contact with the inlet side cell or the outlet side cell. The catalyst layer is formed in a region of at least 50% of the thickness of the partition wall from a surface of the partition wall, and held on the surface of internal pores in the partition wall in the region.
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公开(公告)号：US10960389B2
公开(公告)日：2021-03-30
申请号：US16303338
申请日：2017-05-12
申请人： CATALER CORPORATION
发明人： Yuki Takesue , Kyosuke Murakami , Ryota Onoe
摘要： An exhaust gas purification catalyst of the present invention is provided with a base 10 and a catalyst coat layer 30. The catalyst coat layer is provided with Rh and Pd as noble metal catalysts. Herein Rh is disposed in a first-stage upper layer A and a second-stage upper layer C, and Pd is disposed in the first-stage upper layer A and a first-stage lower layer B, and in a second-stage lower layer D. A mass ratio (APd/ARh) of Pd to Rh, disposed in first-stage upper layer A is 0.5≤(APd/ARh)≤3.
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公开(公告)号：US10201805B2
公开(公告)日：2019-02-12
申请号：US15518086
申请日：2015-10-06
申请人： CATALER CORPORATION
发明人： Tatsuya Ohashi , Shingo Sakagami , Tsuyoshi Ito , Ryota Onoe , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato
IPC分类号： B01J23/00 , B01J23/10 , B01J23/63 , B01D53/94 , B01J35/04 , F01N3/10 , F01N3/28 , F01N3/02 , F01N3/022 , F01N3/023 , F01N3/035 , B01J35/00 , B01J35/10 , B01J37/02 , F01N3/08
摘要： A exhaust gas purification apparatus is provided with; a substrate having a wall-flow structure and including entry-side cells, exit-side cells, and a porous partition; a first catalyst region formed in small diameter pores having relatively small pore diameters among internal pores in the partition; and a second catalyst region formed in large diameter pores having relatively large pore diameters among the internal pores in the partition. The first catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support, while the second catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support and other than at least the precious metal present in the first catalyst region.
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公开(公告)号：US10086363B2
公开(公告)日：2018-10-02
申请号：US15285635
申请日：2016-10-05
申请人： CATALER CORPORATION
发明人： Ryota Onoe , Yasutaka Nomura , Yuta Morishita , Junji Kuriyama , Hiroshi Sekine
IPC分类号： B01J35/10 , B01D53/94 , B01J23/63 , B01D46/24 , B01J35/04 , F01N3/035 , F01N3/10 , F01N13/00
摘要： 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
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公开(公告)号：US12023652B2
公开(公告)日：2024-07-02
申请号：US17437972
申请日：2020-03-10
申请人： Cataler Corporation
发明人： Takahiro Noguchi , Ryota Onoe , Ryo Tasaki , Momoko Iwai , Yamato Matsushita
CPC分类号： B01J23/464 , B01J23/42 , B01J23/44 , B01J35/19 , F01N3/20 , F01N2570/10 , F01N2570/12 , F01N2570/14
摘要： An exhaust gas purification catalyst provides excellent removal performance of methane, which is chemically stable. Exhaust gas purification catalyst includes a substrate that divides cells through which an exhaust gas flows and a catalyst layer that is provided on a surface of the substrate. The catalyst layer includes a palladium layer containing palladium that extends from a first end part which is an end part on the side into which an exhaust gas in the cells flows to a second end part which is an end part on the side from which an exhaust gas flows out, a platinum layer containing platinum that extends from the second end part to the first end part, and a rhodium layer containing rhodium that is laminated with both the palladium layer and the platinum layer.
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公开(公告)号：US20230364589A1
公开(公告)日：2023-11-16
申请号：US18352116
申请日：2023-07-13
申请人： CATALER CORPORATION
发明人： Ryo Tasaki , Ryota Onoe , Momoko Iwai , Yamato Matsushita
CPC分类号： B01J23/58 , B01J35/006 , B01J35/04 , B01J37/0242
摘要： An exhaust gas-purifying catalyst includes a catalyst-coated filter. The catalyst-coated filter includes a filter substrate and a catalyst layer on a pore wall of the filter substrate. The exhaust gas-purifying catalyst has a first end, a second end, a porous wall, a first cell, and a second cell. The first cell is closed at the second end, the second cell is closed at the first end, and the first cell and the second cell are adjacent to each other with the porous wall interposed therebetween. At a surface of the porous wall on the first cell side, a proportion SS/S of a total area SS of pores having an opening diameter of less than 40 μm in a total area S of all pores is 65% or more.
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公开(公告)号：US10344655B2
公开(公告)日：2019-07-09
申请号：US15518011
申请日：2015-10-07
发明人： Ryota Onoe , Shingo Sakagami , Tsuyoshi Ito , Yuta Morishita , Masahiko Takeuchi , Naoto Miyoshi , Akemi Sato , Daisuke Ochiai
摘要： An exhaust gas purification catalyst having an excellent exhaust partition ability while reducing the increase in pressure loss. Exhaust gas purification catalyst includes a substrate having a wall-flow structure with partition wall, upstream coating section formed in portions of partition wall facing entrance cell, from exhaust inlet-side end in the extending direction of partition wall, and downstream coating section formed in portions of partition wall facing exit cell, from exhaust outlet-side end in the extending direction, having a length shorter than the entire length Lw of the partition wall. In downstream coating section, a catalytic metal is concentrated in the surface layer in contact with exit cell.
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公开(公告)号：US10183253B2
公开(公告)日：2019-01-22
申请号：US15517978
申请日：2015-10-06
申请人： CATALER CORPORATION
发明人： Ryota Onoe , Shingo Sakagami , Tsuyoshi Ito , Tatsuya Ohashi , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato
IPC分类号： B01D53/94 , B01J23/63 , B01J35/04 , B01J35/00 , F01N3/035 , B01J23/42 , B01J23/44 , B01J23/46 , F01N3/28
摘要： The exhaust gas purification device is provided with a wall flow structure substrate that has an entry-side cell, an exit-side cell and a porous partition, first catalyst parts which are formed in small pores having a relatively small pore diameter among internal pores in the partition, and second catalyst parts which are formed in large pores having a relatively large pore diameter among the internal pores in the partition. The first catalyst parts and the second catalyst parts each contain a carrier and at least one type of noble metal from among Pt, Pd and Rh supported on the carrier. The noble metal content in the first catalyst parts is smaller than the noble metal content in the second catalyst parts per 1 liter of substrate volume.
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公开(公告)号：US10159935B2
公开(公告)日：2018-12-25
申请号：US15517990
申请日：2015-10-07
发明人： Ryota Onoe , Shingo Sakagami , Tsuyoshi Ito , Masahiko Takeuchi , Naoto Miyoshi , Akemi Sato
摘要： An exhaust gas purification catalyst having an excellent exhaust gas purification ability while reducing the increase in pressure loss. Exhaust gas purification catalyst includes entrance cell, exit cell, and a wall-flow substrate having partition wall to separate these cell, a catalytic layer formed from exhaust inlet-side ends in the extending direction in sections of the interior of partition wall facing entrance cell, and a catalytic layer formed on the surface of partition wall facing exit cell from exhaust outlet-side ends in the extending direction of partition wall, having a length shorter than the entire partition wall length.
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公开(公告)号：US10071368B2
公开(公告)日：2018-09-11
申请号：US15550252
申请日：2016-02-16
申请人： CATALER CORPORATION
发明人： Ryota Onoe , Shingo Sakagami , Yasutaka Nomura , Yuta Morishita , Junji Kuriyama , Hiroshi Sekine
IPC分类号： B01J23/10 , B01J23/44 , B01J23/46 , B01J23/63 , B01J35/00 , B01J35/04 , B01D53/94 , F01N13/08 , F01N3/28
CPC分类号： 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
摘要： 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.
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