-
公开(公告)号：EP4349483A1
公开(公告)日：2024-04-10
申请号：EP22845708.1
申请日：2022-06-10
申请人： CATALER CORPORATION
发明人： HIRAO, Tetsuhiro , OSEKI, Takehisa , TODA, Yosuke
摘要： According to the present invention, a novel exhaust gas purifying catalyst with HC and CO purification performance improved in a rich atmosphere is provided. The exhaust gas purifying catalyst disclosed herein includes a base material, a catalyst layer provided on the base material, and a reforming reaction layer provided on the base material. The catalyst layer includes a three-way catalyst. The reforming reaction layer includes a hydrogen generation catalyst. The reforming reaction layer is disposed at a position on a downstream side in a flowing direction of an exhaust gas relative to the catalyst layer.
-
公开(公告)号：EP3275544A1
公开(公告)日：2018-01-31
申请号：EP16772523.3
申请日：2016-03-24
发明人： SUZUKI Hiromasa , MIURA Masahide , SAITO Yoshinori , KATOH, Satoru , TANABE, Toshitaka , HIRAO, Tetsuhiro , OHASHI, Tatsuya , NAITO, Hiroaki , ORI, Hirotaka , TAKEUCHI, Michihiko , NARITA, Keiichi
CPC分类号： B01J37/0217 , B01D53/94 , B01D53/945 , B01D2255/10 , B01D2255/9022 , B01D2255/9202 , B01D2255/9205 , B01J23/54 , B01J23/63 , B01J35/023 , B01J35/026 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/02 , B01J37/0219 , B01J37/0221 , B01J37/0234 , B01J37/0244 , B01J37/08 , F01N3/28 , Y02T10/22
摘要： When the amount of coating is increased in a two-layer catalyst or the like containing two noble metals in respective different layers, gas diffusivity in the catalyst and use efficiency of a catalytic active site are reduced to thereby reduce purification performance. In view of this, an organic fiber having a predetermined shape is used as a pore-forming material in formation of an uppermost catalyst coating layer of a multi-layer catalyst, to thereby form an uppermost catalyst coating layer having a high-aspect-ratio pore excellent in connectivity and therefore excellent gas diffusivity.
摘要翻译： 当在不同层中含有两种贵金属的双层催化剂等中涂布量增加时，催化剂中的气体扩散性和催化活性部位的使用效率降低，从而降低净化性能。 鉴于此，在形成多层催化剂的最上层催化剂涂层时，使用具有预定形状的有机纤维作为孔形成材料，从而形成具有高纵横比的最上层催化剂涂层 孔隙连通性好，因此气体扩散性极好。
-
公开(公告)号：EP4241880A1
公开(公告)日：2023-09-13
申请号：EP21889051.5
申请日：2021-10-21
申请人： CATALER CORPORATION
发明人： HIRAO, Tetsuhiro , TODA, Yosuke , SAITO, Daiki
IPC分类号： B01J35/04 , B01D53/94 , B01J27/053 , F01N3/10 , F01N3/28
摘要： The present invention provides an exhaust gas purification catalyst device having a base material 110, an upstream-side lower coat layer 121, an upstream-side upper coat layer 122, a downstream-side lower coat layer 131, and a downstream-side upper coat layer 132, the exhaust gas purification catalyst device satisfying conditions (i) and (ii). (i) The concentration of Pt and/or Pd in the upstream-side upper coat layer 122 and the downstream-side lower coat layer 131 is greater than the concentration of Pt and/or Pd in the upstream-side lower coat layer 121, and is greater than the concentration of Pt and/or Pd in the downstream-side upper coat layer 132. (ii) The concentration of Rh in the upstream-side lower coat layer 121 and the downstream-side upper coat layer 132 is greater than the concentration of Rh in the upstream-side upper coat layer 122, and is greater than the concentration of Rh in the downstream-side lower coat layer 131.
-
公开(公告)号：EP3275547A1
公开(公告)日：2018-01-31
申请号：EP16772541.5
申请日：2016-03-24
发明人： SUZUKI Hiromasa , MIURA Masahide , SAITO Yoshinori , KATOH, Satoru , TANABE, Toshitaka , HIRAO, Tetsuhiro , OHASHI, Tatsuya , NAITO, Hiroaki , ORI, Hirotaka , TAKEUCHI, Michihiko , NARITA, Keiichi
CPC分类号： B01D53/945 , B01D53/94 , B01D53/9477 , B01D2255/1023 , B01D2255/1025 , B01D2255/407 , B01D2255/9022 , B01D2255/9205 , B01J23/63 , B01J35/023 , B01J35/026 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/08 , F01N3/101 , F01N3/28 , F01N3/281 , F01N3/2828 , F01N13/009 , F01N2510/06 , Y02T10/22
摘要： The present invention is directed to address the following problem: in an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst, reduction in the gas diffusivity of the startup catalyst results in reduction in the use efficiency of a catalytic active site, resulting in reduction in purification performance. The present invention relates to an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst having a catalyst coating where a large number of voids are included and an underfloor catalyst, wherein high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain rate or more of the whole volume of the voids, to thereby enhance the purification performance of the catalyst.
摘要翻译： 本发明旨在解决以下问题：在包括启动催化剂和地板下催化剂的组合的双催化剂的排气净化催化剂中，启动催化剂的气体扩散率的降低导致使用效率降低 催化活性位点，导致净化性能降低。 本发明涉及一种废气净化催化剂，其包括具有包含大量空隙的催化剂涂层的起动催化剂和地板下催化剂的组合的双重催化剂，其中高纵横比孔隙的纵横比 5以上占空隙总体积的一定比例以上，由此提高催化剂的净化性能。
-
公开(公告)号：EP3275542A1
公开(公告)日：2018-01-31
申请号：EP16772527.4
申请日：2016-03-24
发明人： SUZUKI Hiromasa , MIURA Masahide , SAITO Yoshinori , KATOH, Satoru , TANABE, Toshitata , HIRAO, Tetsuhiro , OHASHI, Tatsuya , NAITO, Hiroaki , ORI, Hirotaka , TAKEUCHI, Michihiko , NARITA, Keiichi
CPC分类号： B01D53/945 , B01D53/94 , B01D53/9468 , B01D53/9472 , B01D2255/10 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2063 , B01D2255/407 , B01D2255/9022 , B01D2255/9032 , B01D2255/9202 , B01D2255/9205 , B01J23/38 , B01J23/56 , B01J23/63 , B01J35/0006 , B01J35/023 , B01J35/026 , B01J35/04 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/08 , F01N3/101 , F01N3/28 , F01N2510/0682 , Y02T10/22
摘要： An object of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance even under a high Ga condition. The present invention relates to an exhaust gas purification catalyst comprising a substrate and a catalyst coating layer formed on the substrate, wherein the catalyst coating layer comprises catalyst particles, the catalyst coating layer having an upstream region extending by 40 to 60% of the entire length of the substrate from an upstream end of the catalyst in the direction of an exhaust gas flow and a downstream region corresponding to the remainder portion of the catalyst coating layer, the composition of the catalyst particle of the upstream region being different from that of the downstream region. The downstream region in the direction of an exhaust gas flow has a structure where a void is included in a large number, and furthermore high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain percentage or more of the whole volume of voids. Thus, the exhaust gas purification catalyst exhibits enhanced purification performance.
摘要翻译： 本发明的目的在于提供一种即使在高Ga条件下也能够发挥充分的净化性能的废气净化用催化剂。 本发明涉及一种废气净化催化剂，其包含基材和形成在该基材上的催化剂涂层，其中该催化剂涂层包含催化剂颗粒，该催化剂涂层具有延伸全长的40％至60％的上游区域 从排气流方向上的催化剂的上游端和与该催化剂涂层的剩余部分相对应的下游区的基板的上游区域的催化剂颗粒的组成不同于下游 地区。 排气流方向的下游区域具有大量含有空隙的结构，并且纵横比为5以上的高纵横比的孔占整体的一定比例以上 空隙体积。 因此，废气净化催化剂表现出提高的净化性能。
-
公开(公告)号：EP4209452A1
公开(公告)日：2023-07-12
申请号：EP21891828.2
申请日：2021-11-08
申请人： CATALER CORPORATION
发明人： TAKASU, Ryosuke , ONOE, Ryota , HIRAO, Tetsuhiro , TODA, Yosuke
摘要： An exhaust gas purifying catalyst 10 according to the present invention includes a base material 11, a reforming reaction layer 20 provided on the base material 11 and including at least one of a rare earth oxide and a transition metal oxide (except precious metal other than Rh and Ru) as a hydrogen generation catalyst that converts an unbumt component in exhaust gas into H 2 , and a catalyst layer 30 including precious metal that purifies the unbumt component. The content of the hydrogen generation catalyst in the reforming reaction layer 20 is 5 g/L or more per unit volume of the base material 11.
-
公开(公告)号：EP3636340A1
公开(公告)日：2020-04-15
申请号：EP18831131.0
申请日：2018-06-07
申请人： Cataler Corporation
发明人： SAWADA, Kazunari , ONOE, Ryota , HIRAO, Tetsuhiro
IPC分类号： B01J35/04 , B01D53/94 , B01J27/053 , F01N3/022 , F01N3/28
摘要： The present invention provides an exhaust gas purification catalyst 10 having a substrate 11 having a wall flow structure, and a catalyst layer 20. The catalyst layer 20 has: an A section 20a provided in the interior of the partition wall 16, along an extension direction X of the partition wall 16, from an exhaust gas inflow end section 13; a C section 20c provided in the interior of the partition wall 16, along the extension direction X of the partition wall 16, from an exhaust gas outflow end section 15; and a B section 20b disposed between the A section 20a and the C section 20c in the extension direction X of the partition wall 16, and provided over the surface of the partition wall 16 on the side in contact with the inlet cell 12, the interior of the partition wall 16, and the surface of the partition wall 16 on the side in contact with the outlet cell 14.
-
公开(公告)号：EP3275546A1
公开(公告)日：2018-01-31
申请号：EP16772539.9
申请日：2016-03-24
发明人： SUZUKI, Hiromasa , MIURA, Masahide , SAITO, Yoshinori , KATOH, Satoru , TANABE, Toshitaka , HIRAO, Tetsuhiro , OHASHI, Tatsuya , NAITO, Hiroaki , ORI, Hirotaka , TAKEUCHI, Michihiko , NARITA, Keiichi
CPC分类号： F01N3/101 , B01D53/865 , B01D53/94 , B01D53/945 , B01D53/9477 , B01D2255/1021 , B01D2255/1025 , B01D2255/407 , B01D2255/9022 , B01D2255/9205 , B01J23/56 , B01J23/63 , B01J35/023 , B01J35/026 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/04 , B01J37/08 , F01N3/2825 , F01N2330/06 , F01N2330/34 , Y02T10/22
摘要： The present invention is directed to address the following problem: in an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst, reduction in the gas diffusivity of the underfloor catalyst results in reduction in the use efficiency of a catalytic active site, resulting in reduction in purification performance. The present invention relates to an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst having a catalyst coating where a large number of voids are included, wherein high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain rate or more of the whole volume of the voids, to thereby enhance the purification performance of the catalyst.
摘要翻译： 本发明旨在解决以下问题：在包括启动催化剂和地板下催化剂的组合的双催化剂的排气净化催化剂中，地板下催化剂的气体扩散率的降低导致使用效率降低 催化活性位点，导致净化性能降低。 本发明涉及一种废气净化催化剂，其包括具有催化剂涂层的起动催化剂和地板下催化剂的组合的双重催化剂，其中包含大量空隙的催化剂涂层，其中高纵横比孔隙的纵横比 5以上占空隙总体积的一定比例以上，由此提高催化剂的净化性能。
-
公开(公告)号：EP3275543A1
公开(公告)日：2018-01-31
申请号：EP16772519.1
申请日：2016-03-24
发明人： SUZUKI Hiromasa , MIURA Masahide , SAITO Yoshinori , KATOH, Satoru , TANABE, Toshitaka , HIRAO, Tetsuhiro , OHASHI, Tatsuya , NAITO, Hiroaki , ORI, Hirotaka , TAKEUCHI, Michihiko , NARITA, Keiichi
CPC分类号： F01N3/101 , B01D53/865 , B01D53/94 , B01D53/945 , B01D2255/10 , B01D2255/9022 , B01D2255/9202 , B01D2255/9205 , B01J23/56 , B01J23/63 , B01J35/023 , B01J35/026 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/0244 , B01J37/04 , B01J37/08 , F01N3/28 , Y02T10/22
摘要： The problem of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance under a high Ga condition while having a resistance to stress such as high-temperature and poisonous substances. The present invention relates to an exhaust gas purification catalyst comprising two or more catalyst coating layers on a substrate, wherein a lower catalyst coating layer that is present lower with respect to an uppermost catalyst coating layer has a structure where a large number of voids are included and high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain proportion or more of the whole volume of voids, thereby to improve gas diffusivity in the lower catalyst coating layer.
摘要翻译： 本发明的课题在于提供一种废气净化用催化剂，其能够在高温和有害物质等的应力耐受的同时，在高镓条件下发挥充分的净化性能。 本发明涉及在基材上具有2层以上的催化剂涂层的废气净化用催化剂，其中相对于最上层的催化剂涂层存在下层的下层催化剂涂层具有包含大量空隙的结构 纵横尺寸比为5以上的高纵横比的孔占全部空隙体积的一定比例以上，从而提高下层催化剂涂层的气体扩散性。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.014 秒)
