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公开(公告)号：US20230114106A1
公开(公告)日：2023-04-13
申请号：US17912140
申请日：2021-03-17
申请人： CATALER CORPORATION
发明人： Kohei TAKASAKI , Tatsuya OHASHI , Shunsuke OISHI
摘要： An exhaust gas purification catalyst device comprising a base material and a catalyst coating layer provided on the base material, wherein the catalyst coating layer contains zeolite particles, inorganic oxide particles other than the zeolite particles, and a catalyst precious metal, and the ratio dZEO/dOX between the average particle diameter dZEO of the zeolite particles and the average particle diameter dOX of the inorganic oxide particles other than the zeolite particles is 3.4 or less.
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公开(公告)号：US20230294044A1
公开(公告)日：2023-09-21
申请号：US18014273
申请日：2021-07-06
申请人： CATALER CORPORATION
发明人： Kohei TAKASAKI , Tatsuya OHASHI , Shunsuke OISHI , Ryota ONOE , Junichi HORI , Ryosuke TAKASU , Chihiro KASUYA
CPC分类号： B01J37/0244 , B01J20/165 , B01J23/464 , B01J35/04 , B01J37/0225 , B01J37/0228 , B01J37/0246
摘要： Provided is an exhaust gas purification catalyst system comprising, in the following order, from the upstream side of an exhaust gas flow: a first exhaust gas purification catalyst apparatus 100 including a metal honeycomb substrate 110 and a first catalyst coat layer 120 on the metal honeycomb substrate 110; a heater 300; and a second exhaust purification catalyst apparatus 200 including a cordierite honeycomb substrate 210 and a second catalyst coat layer 220 on the cordierite honeycomb substrate 210, wherein the first catalyst coat layer 120 contains an adsorbent 130 that can adsorb one or two or more among NOx, HC and CO, and the second catalyst coat layer 220 contains inorganic oxide particles 230 and catalyst precious metal particles 240 supported on the inorganic oxide particles 230.
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公开(公告)号：US20170296969A1
公开(公告)日：2017-10-19
申请号：US15515830
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
CPC分类号： B01D53/9472 , B01D53/94 , B01D53/945 , B01D53/9454 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/9032 , B01D2255/905 , B01D2255/9155 , B01J23/40 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0244 , F01N3/035 , F01N3/28 , F01N13/009 , F01N2330/06 , F01N2370/02 , F01N2510/0682 , Y02T10/22
摘要： An exhaust gas purification device of the present invention is provided with: 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 of the substrate including an exhaust gas inflow end section; and a downstream catalyst layer, provided inside the partition wall and disposed in a downstream portion of the substrate including an exhaust gas outflow end section. The upstream catalyst layer and the downstream catalyst layer each contain a carrier and at least one noble metal from among Pt, Pd and Rh, supported on the carrier. The noble metal in the upstream catalyst layer and the noble metal in the downstream catalyst layer are different from each other.
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公开(公告)号：US20160296873A1
公开(公告)日：2016-10-13
申请号：US15100747
申请日：2014-12-01
申请人： CATALER CORPORATION
发明人： Ryota ONOE , Shingo SAKAGAMI , Tsuyoshi ITO , Tatsuya OHASHI
CPC分类号： B01D46/247 , F01N3/0222 , F01N2330/30 , F01N2330/34 , F01N2330/38
摘要： Particulate filter provided in the exhaust gas purification device includes: a wall-flow part having an inlet-side cell that is open only at an end on an exhaust gas inflow side, outlet-side cell adjacent to this inlet-side cell and is open only at an end on an exhaust gas outflow side, a porous wall partitions the inlet-side cell from the outlet-side cell; a straight-flow part having a through cell that penetrates the filter in axial direction and is open at the end on the exhaust gas inflow side as well as the end on the exhaust gas outflow side. In a cross section of the filter orthogonal to its axial direction, cross-sectional areas of the inlet-side cell and outlet-side cell present in an outer peripheral region of the cross section are larger than cross-sectional areas of the inlet-side cells and the outlet-side cell in a central region of the cross section.
摘要翻译： 设置在排气净化装置中的颗粒过滤器包括：壁流部，其具有仅在废气流入侧的端部开口的入口侧单元，与该入口侧单元相邻的出口侧单元， 只有在废气流出侧的一端，多孔壁将入口侧电池与出口侧电池隔开; 直流部，其具有贯通孔，其沿轴向贯通过滤器，并且在废气流入侧的端部以及废气流出侧的端部开口。 在与其轴向正交的过滤器的截面中，存在于横截面的外周区域中的入口侧单元和出口侧单元的横截面积大于入口侧的横截面面积 细胞和出口侧细胞在横截面的中心区域。
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公开(公告)号：US20220176352A1
公开(公告)日：2022-06-09
申请号：US17598994
申请日：2020-03-03
申请人： CATALER CORPORATION
发明人： Tatsuya OHASHI , Kohei TAKASAKI
摘要： An exhaust gas purification catalyst device having a substrate, a first catalyst coating layer on the substrate, and a second catalyst coating layer on the first catalyst coating layer. The first catalyst coating layer includes inorganic oxide particles, palladium carried on the inorganic oxide particles, and a barium compound. The second catalyst coating layer includes alumina particles and rhodium carried by the alumina particles. The ratio (MBa/MRh) between the mass (MBa) of barium in the first catalyst coating layer and the mass (MRh) of rhodium in the second catalyst coating layer is 5.0-60.0 inclusive.
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公开(公告)号：US20180001308A1
公开(公告)日：2018-01-04
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： B01J23/63 , B01D53/94 , F01N3/08 , B01J35/00 , B01J37/02 , B01J35/10 , B01J35/04 , F01N3/28 , F01N3/035
CPC分类号： B01J23/63 , B01D53/94 , B01D53/945 , B01D53/9454 , B01D2255/1021 , B01D2255/1025 , B01D2255/9032 , B01D2255/908 , B01D2255/91 , B01D2255/9155 , B01D2255/9202 , B01J35/0006 , B01J35/04 , B01J35/1076 , B01J37/0244 , F01N3/02 , F01N3/022 , F01N3/023 , F01N3/035 , F01N3/0842 , F01N3/0864 , F01N3/10 , F01N3/28 , F01N3/2878
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：US20190105637A1
公开(公告)日：2019-04-11
申请号：US16151847
申请日：2018-10-04
CPC分类号： B01J23/464 , B01D53/945 , B01D53/9468 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/407 , B01D2255/9022 , B01D2255/9025 , B01D2255/9032 , B01D2255/908 , B01J23/44 , B01J35/0006 , B01J35/0066 , F01N3/28 , F01N2370/02 , F01N2510/06 , F01N2510/0682 , F01N2510/0684
摘要： The exemplary embodiments relate to an exhaust gas purification catalyst that is excellent in terms of HC purification capacity and warm-up performance. Such exhaust gas purification catalyst comprises a substrate and a catalyst coating layer formed on the surface of the substrate, wherein the catalyst coating layer comprises an upper and lower layer comprising a lower layer being closer to the surface of the substrate and an upper layer being relatively remote from the surface of the substrate, the upper layer of the catalyst coating layer comprises Rh, Pd, and a carrier, the upper layer of the catalyst coating layer comprises an uppermost surface Pd layer having a Pd concentration relatively higher than that in any other portion in the upper layer within an area extending over a length of 20 mm or more from one end on the upstream side in the downstream direction on the surface of the upper layer, the lower layer of the catalyst coating layer comprises at least one noble metal selected from Pd and Pt and a carrier, and 60% or more of Pd by mass in the uppermost surface Pd layer exists in a layer up to 50% of the upper layer in a thickness direction from the surface of the uppermost surface Pd layer being relatively remote from the surface of the substrate.
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公开(公告)号：US20180243728A1
公开(公告)日：2018-08-30
申请号：US15553020
申请日：2016-02-17
发明人： Satoru KATOH , Toshitaka TANABE , Masahide MIURA , Hiromasa SUZUKI , Hiroaki NAITO , Hirotaka ORI , Keiichi NARITA , Michihiko TAKEUCHI , Tatsuya OHASHI
IPC分类号： B01J23/63 , B01D53/94 , B01J35/02 , B01J35/10 , B01J37/02 , B01J37/08 , B01J35/04 , F01N3/28
CPC分类号： B01J23/63 , B01D53/94 , B01D2255/1021 , B01D2255/407 , B01D2255/9202 , B01J35/023 , B01J35/026 , B01J35/04 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/08 , F01N3/28 , F01N2330/02 , F01N2330/06 , F01N2510/068
摘要： A catalyst for purification of exhaust gas, wherein a substrate and a catalyst coat layer which is formed on a surface of the substrate and which comprises catalyst particles, wherein the catalyst coat layer has an average thickness in a range of 25 to 160 μm, and a void fraction in a range of 50 to 80% by volume as measured by a weight-in-water method, 0.5 to 50% by volume of all voids in the catalyst coat layer consist of high-aspect ratio pores which have equivalent circle diameters in a range of 2 to 50 μm in a cross-sectional image of a cross-section of the catalyst coat layer which the cross-section is perpendicular to a flow direction of exhaust gas in the substrate, and which have aspect ratios of 5 or higher, and the high-aspect ratio pores have an average aspect ratio in a range of 10 to 50.
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公开(公告)号：US20170304772A1
公开(公告)日：2017-10-26
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
CPC分类号： B01D53/94 , B01D53/945 , B01D2255/1021 , B01D2255/1025 , B01D2255/407 , B01D2255/9155 , B01D2255/9202 , B01D2258/014 , B01J23/42 , B01J23/44 , B01J23/462 , B01J23/464 , B01J23/63 , B01J35/0006 , B01J35/04 , F01N3/035 , F01N3/2828 , F01N2510/068 , Y02T10/22
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：US20160298512A1
公开(公告)日：2016-10-13
申请号：US15100716
申请日：2014-12-01
申请人： CATALER CORPORATION
发明人： Ryota ONOE , Shingo SAKAGAMI , Tsuyoshi ITO , Tatsuya OHASHI
CPC分类号： F01N3/0222 , B01D46/247 , F01N3/035 , F01N2250/02 , F01N2260/06 , F01N2330/30 , F01N2330/34
摘要： The exhaust gas purification device provided with a particulate filter disposed in an exhaust passage of an internal combustion engine and capturing particulate matter in exhaust gas discharged from the internal combustion engine. The particulate filter is provided with a wall-flow part having an inlet-side cell that is open only at an end on an exhaust gas inflow side, an outlet-side cell that is adjacent to this inlet-side cell and is open only at an end on an exhaust gas outflow side, and a porous wall that partitions the inlet-side cell from the outlet-side cell, and is also provided with a straight-flow part having a through cell that penetrates the filter in an axial direction thereof and is open at the end on the exhaust gas inflow side as well as the end on the exhaust gas outflow side.
摘要翻译： 所述排气净化装置设置有设置在内燃机的排气通路中的微粒过滤器，并且捕集从所述内燃机排出的废气中的微粒物质。 颗粒过滤器设置有壁流部分，其具有仅在废气流入侧的端部处开口的入口侧单元，与该入口侧单元相邻并且仅在 废气流出侧的端部，以及将入口侧电池与出口侧电池分隔开的多孔壁，还具有直流部，该直流部具有沿轴向贯通过滤器的贯通单元 并且在废气流入侧的端部以及废气流出侧的端部开口。
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