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公开(公告)号：US10323554B2
公开(公告)日：2019-06-18
申请号：US15560703
申请日：2016-03-24
申请人： Hiromasa Suzuki , Masahide Miura , Yoshinori Saito , Satoru Katoh , Toshitaka Tanabe , Tetsuhiro Hirao , Tatsuya Ohashi , Hiroaki Naito , Hirotaka Ori , Michihiko Takeuchi , Keiichi Narita
发明人： Hiromasa Suzuki , Masahide Miura , Yoshinori Saito , Satoru Katoh , Toshitaka Tanabe , Tetsuhiro Hirao , Tatsuya Ohashi , Hiroaki Naito , Hirotaka Ori , Michihiko Takeuchi , Keiichi Narita
IPC分类号： F01N3/00 , F01N3/10 , B01J23/63 , B01D53/94 , B01J35/10 , B01J37/02 , B01J37/00 , B01D53/86 , B01J23/56 , B01J37/04 , F01N3/28 , B01J37/08 , B01J35/02
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.
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公开(公告)号：US20180243690A1
公开(公告)日：2018-08-30
申请号：US15560772
申请日：2016-03-24
申请人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
发明人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
IPC分类号： B01D53/94 , B01J23/56 , B01J35/00 , B01J35/02 , B01J35/04 , B01J35/10 , B01J37/02 , B01J37/08 , F01N3/10 , F01N3/28
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 , B01J23/56 , B01J23/63 , B01J35/0006 , B01J35/023 , B01J35/026 , B01J35/04 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/0244 , 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.
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公开(公告)号：US20180106175A1
公开(公告)日：2018-04-19
申请号：US15561738
申请日：2016-03-24
申请人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
发明人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
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.
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公开(公告)号：US20110237428A1
公开(公告)日：2011-09-29
申请号：US13153351
申请日：2011-06-03
申请人： Minoru ITOU , Michihiko Takeuchi , Takaaki Kanazawa , Masaya Kamada , Tadashi Suzuki , Satoru Katoh , Naoki Takahashi
发明人： Minoru ITOU , Michihiko Takeuchi , Takaaki Kanazawa , Masaya Kamada , Tadashi Suzuki , Satoru Katoh , Naoki Takahashi
IPC分类号： B01J35/04 , B01J35/10 , B01J23/10 , B01J21/06 , B01J23/30 , B01J23/28 , B01J27/14 , B01J23/20
CPC分类号： F01N3/0807 , B01D53/9413 , B01D53/9472 , B01D53/9477 , B01D2255/1021 , B01D2255/1025 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/20707 , B01D2255/20715 , B01D2255/20769 , B01D2255/20776 , B01D2255/30 , B01D2255/407 , B01D2255/908 , B01D2255/9207 , B01J23/63 , B01J23/6484 , B01J23/6525 , B01J23/6527 , B01J27/14 , B01J35/0006 , B01J35/04 , F01N3/0864 , F01N13/0097 , F01N2370/02 , F01N2510/0682 , Y02T10/20
摘要： The exhaust gas-purifying catalyst includes a substrate provided with one or more through-holes through which exhaust gas flows, and a catalyst layer which is supported by the substrate and contains precious metals and an oxygen storage material. The exhaust gas-purifying catalyst contains a first part to which the exhaust gas is supplied, and a second part to which the exhaust gas having passed through the first part is supplied and is smaller in the content of the oxygen storage material per unit volume than that of the first part.
摘要翻译： 废气净化用催化剂具备：设置有排气流过的一个以上通气孔的基板和由该基板支撑并含有贵金属和储氧材料的催化剂层。 排气净化催化剂含有供给废气的第一部分，并且供给通过第一部分的废气的第二部分，并且每单位体积的储氧材料的含量小于 第一部分。
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公开(公告)号：US20090137387A1
公开(公告)日：2009-05-28
申请号：US12227523
申请日：2007-06-05
CPC分类号： B01J37/0234 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1026 , B01D2255/2065 , B01D2255/2068 , B01D2255/9022 , B01D2255/908 , B01J23/63 , B01J37/0244 , F01N2510/0682 , F01N2570/24 , Y02T10/22
摘要： The present invention provides an exhaust gas purification catalyst comprising a base material, and a two or more layered catalyst coating layer, formed on the base material, wherein the two or more layers have upper and lower layers, and wherein the upper layer contains a large amount of noble metal per liter of the base material more than that of the lower layer, and the lower layer contains a large amount of an oxygen storage/release material per liter of the base material more than that of the upper layer. This exhaust gas purification catalyst has more excellent H2S purifying performance than conventional catalysts while maintaining purifying performance against NOx and the other exhaust gas components.
摘要翻译： 本发明提供了一种排气净化催化剂，其包含基材和形成在基材上的两层以上的层叠催化剂被覆层，其中两层以上具有上层和下层，并且其中上层含有大的 贵金属的量比每一基底材料多于下层的贵金属，下层含有比上层更多的每升基材的大量的储氧/释放材料。 这种废气净化催化剂具有比常规催化剂更优异的H 2 S净化性能，同时保持对NOx和其它废气组分的净化性能。
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6.发明申请CATALYST FOR PURIFICATION OF EXHAUST GAS, AND APPARATUS AND METHOD FOR PURIFICATION OF EXHAUST GAS USING THE CATALYST 有权用于净化排气的催化剂，以及使用催化剂净化排气的装置和方法公开(公告)号：US20110014101A1
公开(公告)日：2011-01-20
申请号：US12599057
申请日：2008-05-08
申请人： Tadashi Suzuki , Satoru Kato , Naoki Takahashi , Takaaki Kanazawa , Masanori Yamato , Kazuhiro Yoshimoto , Michihiko Takeuchi , Yuuji Matsuhisa
发明人： Tadashi Suzuki , Satoru Kato , Naoki Takahashi , Takaaki Kanazawa , Masanori Yamato , Kazuhiro Yoshimoto , Michihiko Takeuchi , Yuuji Matsuhisa
IPC分类号： B01D53/94 , B01J23/40 , B01J23/48 , B01J27/14 , B01J27/185 , B01J23/652 , B01J23/68 , B01J23/89 , B01J21/06 , B01D53/52
CPC分类号： B01D53/9445 , B01D2255/20707 , B01D2255/20738 , B01D2255/20769 , B01D2255/20776 , B01D2255/9207 , B01D2257/304 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01J21/04 , B01J23/40 , B01J23/42 , B01J23/58 , B01J23/63 , B01J23/6525 , B01J23/6527 , B01J23/8906 , B01J35/002 , B01J35/04 , B01J35/1009 , B01J35/1014 , B01J35/1019 , B01J37/0205 , B01J37/0207 , B01J37/0242 , B01J37/08 , B01J37/28 , F01N2570/24 , Y02T10/22
摘要： A catalyst for purification of exhaust gas, in which a noble metal is supported on a metal oxide support, has a basic site content of 1 mmol/L-cat or less, as determined on the basis of an amount of CO2 desorbed per liter of the catalyst as measured by a CO2 temperature-programmed desorption method.
摘要翻译： 用于净化贵金属负载在金属氧化物载体上的废气的催化剂的碱性位置含量为1mmol / L-cat以下，其基于每升脱附的二氧化碳的量 催化剂通过CO 2温度程序解吸法测量。
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公开(公告)号：US20180106174A1
公开(公告)日：2018-04-19
申请号：US15560703
申请日：2016-03-24
申请人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
发明人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
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.
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公开(公告)号：US20180104679A1
公开(公告)日：2018-04-19
申请号：US15560706
申请日：2016-03-24
申请人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
发明人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
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.
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公开(公告)号：US20090149322A1
公开(公告)日：2009-06-11
申请号：US12368822
申请日：2009-02-10
IPC分类号： B01J23/10
CPC分类号： F01N3/10 , B01D53/94 , B01D2255/102 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2255/902 , B01D2255/908 , B01D2255/92 , B01D2257/304 , B01J23/40 , B01J23/63 , B01J23/894 , B01J35/006 , B01J35/10 , B01J35/1014 , B01J35/1019 , B01J37/0234 , F01N2570/04
摘要： Decreasing hydrogen sulfide emission without using nickel is made possible. An exhaust gas-purifying catalyst includes a support substrate, a catalyst support layer supported by the support substrate and including porous carrier, and a precious metal supported by the porous carrier. A mean diameter of the precious metal is 5 nm or larger.
摘要翻译： 可以减少不使用镍的硫化氢排放。 废气净化催化剂包括支撑基板，由支撑基板支撑并且包括多孔载体的催化剂支撑层和由多孔载体支撑的贵金属。 贵金属的平均直径为5nm以上。
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公开(公告)号：US20180252132A1
公开(公告)日：2018-09-06
申请号：US15560625
申请日：2016-03-24
申请人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
发明人： Hiromasa SUZUKI , Masahide MIURA , Yoshinori SAITO , Satoru KATOH , Toshitaka TANABE , Tetsuhiro HIRAO , Tatsuya OHASHI , Hiroaki NAITO , Hirotaka ORI , Michihiko TAKEUCHI , Keiichi NARITA
摘要： An object of the present invention is to provide an exhaust gas purification catalyst which can exhibit high durability and warm-up performance. 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 upstream 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.
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