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公开(公告)号：US07863217B2
公开(公告)日：2011-01-04
申请号：US11790942
申请日：2007-04-30
CPC分类号： B01D53/945 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/40 , B01D2255/407 , B01J21/066 , B01J23/63 , B01J35/04 , B01J35/1019 , B01J35/1061 , B01J37/038 , B01J2523/00 , F01N3/2828 , Y02T10/22 , B01J2523/3718 , B01J2523/48 , B01J2523/822 , B01J2523/3725 , B01J2523/3706 , B01J2523/3737 , B01J2523/36 , B01J2523/3787
摘要： Disclosed is an exhaust gas purifying catalyst, which comprises a catalyst layer formed on a honeycomb-shaped support. The catalyst layer is formed by mixing a catalyst powder (A) consisting of a composite oxide (RhZrCeNdO) which contains at least Ce, Zr, and a catalytic noble metal composition, and a catalyst powder (B) consisting of a Zr-based oxide (RhZrXO) which contains at least Zr and has Rh existing on a surface thereof. A ratio (RhZrXO/RhZrCeNdO) of a mass of the catalyst powder (B) to a total mass of the catalyst powder (A) and the catalyst powder (B) may be set in the range of 1 to 50%. Further, the catalyst powder (B) may consist of a composite oxide which contains Zr as a primary component, a rare-earth metal except Ce, and Rh. The exhaust gas purifying catalyst of the present invention can provide enhanced exhaust gas conversion efficiency.
摘要翻译： 公开了一种废气净化催化剂，其包括形成在蜂窝状载体上的催化剂层。 催化剂层通过将由至少包含Ce，Zr的复合氧化物（RhZrCeNdO）和催化剂贵金属组合物组成的催化剂粉末（A）和由Zr类氧化物组成的催化剂粉末（B） （RhZrXO），其至少包含Zr并且在其表面上存在Rh。 催化剂粉末（B）的质量与催化剂粉末（A）和催化剂粉末（B）的总质量的比率（RhZrXO / RhZrCeNdO）可以设定在1〜50％的范围内。 此外，催化剂粉末（B）可以由以Zr为主要成分的复合氧化物，Ce以外的稀土金属和Rh组成。 本发明的废气净化用催化剂能够提高排气净化效率。
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公开(公告)号：US20070117715A1
公开(公告)日：2007-05-24
申请号：US11583827
申请日：2006-10-20
申请人： Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
发明人： Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
IPC分类号： B01J23/00
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01D2255/9205 , B01J23/002 , B01J23/63 , B01J35/023 , B01J35/04 , B01J37/0045 , B01J37/343 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/48
摘要： An exhaust gas purification catalyst comprises an oxygen storage component constituted by a mixed oxide containing cerium and zirconium, and a catalytic metal and a NOx storage component are carried on the oxygen storage component. The oxygen storage component is in the form of porous secondary particles in each of which primary particles of an average particle size of less than 10 nm cohere to form fine pores inside each said secondary particle.
摘要翻译： 废气净化催化剂包括由含有铈和锆的混合氧化物构成的储氧组分，催化金属和NOx储存组分被载置在储氧组分上。 储氧组分是多孔二次颗粒的形式，其中平均粒度小于10nm的初级颗粒各自在每个所述二次颗粒内形成细孔。
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公开(公告)号：US07691778B2
公开(公告)日：2010-04-06
申请号：US11591543
申请日：2006-11-02
申请人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
发明人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/407 , B01D2255/908 , B01D2255/91 , B01J23/002 , B01J23/63 , B01J35/04 , B01J35/08 , B01J37/0045 , B01J37/343 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/48
摘要： An exhaust gas purification catalyst comprises: an oxygen storage component constituted by a mixed oxide containing cerium and zirconium; and a catalytic metal carried on the oxygen storage component. The oxygen storage component is in the form of hollow secondary particles each formed so that primary particles of an average particle size of less than 10 nm cohere into a shell.
摘要翻译： 废气净化催化剂包括：由含有铈和锆的混合氧化物构成的储氧组分; 以及承载在储氧部件上的催化金属。 储氧组分为中空二次颗粒的形式，每个颗粒均形成为使得平均粒度小于10nm的初级颗粒结合到壳中。
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公开(公告)号：US20080056965A1
公开(公告)日：2008-03-06
申请号：US11826558
申请日：2007-07-17
申请人： Seiji Miyoshi , Hideharu Iwakuni , Koji Minoshima , Hiroshi Yamada , Masaaki Akamine , Akihide Takami
发明人： Seiji Miyoshi , Hideharu Iwakuni , Koji Minoshima , Hiroshi Yamada , Masaaki Akamine , Akihide Takami
IPC分类号： B01J19/00
CPC分类号： B01D53/945 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2255/40 , B01D2255/407 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J37/0221 , B01J37/0242 , B01J37/0244 , B01J37/0248 , B01J37/03 , B01J2523/00 , F01N3/10 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N2510/06 , Y02T10/22 , B01J2523/31 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/37
摘要： An upstream catalyst and a downstream catalyst are disposed in an exhaust passage of an engine. The downstream catalyst contains in the same catalyst layer thereof. Rh-doped CeZrNd mixed oxide particles on which Rh is supported and active alumina particles on which Pt is supported. The upstream catalyst is a three-way catalyst containing an oxygen storage component having a lower oxygen storage capacity than the Rh-doped CeZrNd mixed oxide.
摘要翻译： 上游催化剂和下游催化剂设置在发动机的排气通道中。 下游催化剂含有与其相同的催化剂层。 负载有Rh的Rh掺杂CeZrNd混合氧化物颗粒和负载有Pt的活性氧化铝颗粒。 上游催化剂是含有比Rh掺杂的CeZrNd混合氧化物具有更低的储氧能力的储氧组分的三元催化剂。
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公开(公告)号：US20070274890A1
公开(公告)日：2007-11-29
申请号：US11790942
申请日：2007-04-30
IPC分类号： B01D53/94
CPC分类号： B01D53/945 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/40 , B01D2255/407 , B01J21/066 , B01J23/63 , B01J35/04 , B01J35/1019 , B01J35/1061 , B01J37/038 , B01J2523/00 , F01N3/2828 , Y02T10/22 , B01J2523/3718 , B01J2523/48 , B01J2523/822 , B01J2523/3725 , B01J2523/3706 , B01J2523/3737 , B01J2523/36 , B01J2523/3787
摘要： Disclosed is an exhaust gas purifying catalyst, which comprises a catalyst layer formed on a honeycomb-shaped support. The catalyst layer is formed by mixing a catalyst powder (A) consisting of a composite oxide (RhZrCeNdO) which contains at least Ce, Zr, and a catalytic noble metal composition, and a catalyst powder (B) consisting of a Zr-based oxide (RhZrXO) which contains at least Zr and has Rh existing on a surface thereof. A ratio (RhZrXO/RhZrCeNdO) of a mass of the catalyst powder (B) to a total mass of the catalyst powder (A) and the catalyst powder (B) may be set in the range of 1 to 50%. Further, the catalyst powder (B) may consist of a composite oxide which contains Zr as a primary component, a rare-earth metal except Ce, and Rh. The exhaust gas purifying catalyst of the present invention can provide enhanced exhaust gas conversion efficiency.
摘要翻译： 公开了一种废气净化催化剂，其包括形成在蜂窝状载体上的催化剂层。 催化剂层通过将由至少包含Ce，Zr的复合氧化物（RhZrCeNdO）和催化剂贵金属组合物组成的催化剂粉末（A）和由Zr类氧化物组成的催化剂粉末（B） （RhZrXO），其至少包含Zr并且在其表面上存在Rh。 催化剂粉末（B）的质量与催化剂粉末（A）和催化剂粉末（B）的总质量的比率（RhZrXO / RhZrCeNdO）可以设定在1〜50％的范围内。 此外，催化剂粉末（B）可以由以Zr为主要成分的复合氧化物，Ce以外的稀土金属和Rh组成。 本发明的废气净化用催化剂能够提高排气净化效率。
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公开(公告)号：US20070117716A1
公开(公告)日：2007-05-24
申请号：US11591543
申请日：2006-11-02
申请人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
发明人： Tomohiro Honda , Tomoaki Urai , Ryota Fujimoto , Seiji Miyoshi , Hiroshi Yamada , Hideharu Iwakuni , Koichiro Harada , Koji Minoshima , Akihide Takami
IPC分类号： B01J23/10
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/407 , B01D2255/908 , B01D2255/91 , B01J23/002 , B01J23/63 , B01J35/04 , B01J35/08 , B01J37/0045 , B01J37/343 , B01J2523/00 , Y02T10/22 , B01J2523/3712 , B01J2523/48
摘要： An exhaust gas purification catalyst comprises: an oxygen storage component constituted by a mixed oxide containing cerium and zirconium; and a catalytic metal carried on the oxygen storage component. The oxygen storage component is in the form of hollow secondary particles each formed so that primary particles of an average particle size of less than 10 nm cohere into a shell.
摘要翻译： 废气净化催化剂包括：由含有铈和锆的混合氧化物构成的储氧组分; 以及承载在储氧部件上的催化金属。 储氧组分是中空二次颗粒的形式，每个颗粒形成为使得平均粒度小于10nm的初级颗粒结合到壳中。
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公开(公告)号：US07785545B2
公开(公告)日：2010-08-31
申请号：US11826558
申请日：2007-07-17
申请人： Seiji Miyoshi , Hideharu Iwakuni , Koji Minoshima , Hiroshi Yamada , Masaaki Akamine , Akihide Takami
发明人： Seiji Miyoshi , Hideharu Iwakuni , Koji Minoshima , Hiroshi Yamada , Masaaki Akamine , Akihide Takami
IPC分类号： B01D50/00
CPC分类号： B01D53/945 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2255/40 , B01D2255/407 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J37/0221 , B01J37/0242 , B01J37/0244 , B01J37/0248 , B01J37/03 , B01J2523/00 , F01N3/10 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N2510/06 , Y02T10/22 , B01J2523/31 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/37
摘要： An upstream catalyst and a downstream catalyst are disposed in an exhaust passage of an engine. The downstream catalyst contains in the same catalyst layer thereof. Rh-doped CeZrNd mixed oxide particles on which Rh is supported and active alumina particles on which Pt is supported. The upstream catalyst is a three-way catalyst containing an oxygen storage component having a lower oxygen storage capacity than the Rh-doped CeZrNd mixed oxide.
摘要翻译： 上游催化剂和下游催化剂设置在发动机的排气通道中。 下游催化剂含有与其相同的催化剂层。 负载有Rh的Rh掺杂CeZrNd混合氧化物颗粒和负载有Pt的活性氧化铝颗粒。 上游催化剂是含有比Rh掺杂的CeZrNd混合氧化物具有更低的储氧能力的储氧组分的三元催化剂。
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公开(公告)号：US07608561B2
公开(公告)日：2009-10-27
申请号：US11546340
申请日：2006-10-12
CPC分类号： B01D53/945 , B01D2255/1025 , B01D2255/407 , B01J21/066 , B01J23/002 , B01J23/63 , B01J35/04 , B01J37/0244 , C01G25/00 , C01G25/006 , C01P2002/72 , Y02T10/22
摘要： An exhaust gas purifying catalyst comprising: a honeycomb-like substrate disposed in an exhaust passage for an engine; and a catalytic layer formed on a cell wall of said substrate, said catalytic layer including a mixed oxide which contains Ce (cerium) and Zr (zirconium), and retains a catalytic noble metal in such a manner that said noble metal atoms are located at crystal lattice points or between the lattice points of the mixed oxide, wherein said mixed oxide includes a first mixed oxide containing CeO2 in a mass greater than that of ZrO2, and a second mixed oxide containing ZrO2 in a mass greater than that of CeO2.
摘要翻译： 一种废气净化催化剂，包括：设置在发动机的排气通道中的蜂窝状基材; 以及形成在所述基材的细胞壁上的催化剂层，所述催化剂层包括含有Ce（铈）和Zr（锆）的混合氧化物，并且以使所述贵金属原子位于 晶格点或混合氧化物的晶格点之间，其中所述混合氧化物包括质量大于ZrO 2的CeO 2的第一混合氧化物，以及含有大于CeO 2质量的ZrO 2的第二混合氧化物。
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公开(公告)号：US20070093381A1
公开(公告)日：2007-04-26
申请号：US11546340
申请日：2006-10-12
IPC分类号： B01J23/10
CPC分类号： B01D53/945 , B01D2255/1025 , B01D2255/407 , B01J21/066 , B01J23/002 , B01J23/63 , B01J35/04 , B01J37/0244 , C01G25/00 , C01G25/006 , C01P2002/72 , Y02T10/22
摘要： An exhaust gas purifying catalyst comprising: a honeycomb-like substrate disposed in an exhaust passage for an engine; and a catalytic layer formed on a cell wall of said substrate, said catalytic layer including a mixed oxide which contains Ce (cerium) and Zr (zirconium), and retains a catalytic noble metal in such a manner that said noble metal atoms are located at crystal lattice points or between the lattice points of the mixed oxide, wherein said mixed oxide includes a first mixed oxide containing CeO2 in a mass greater than that of ZrO2, and a second mixed oxide containing ZrO2 in a mass greater than that of CeO2.
摘要翻译： 一种废气净化催化剂，包括：设置在发动机的排气通道中的蜂窝状基材; 以及形成在所述基材的细胞壁上的催化剂层，所述催化剂层包括含有Ce（铈）和Zr（锆）的混合氧化物，并且以使所述贵金属原子位于 晶格点或混合氧化物的晶格点之间，其中所述混合氧化物包括质量大于ZrO 2的质量的第一混合氧化物，以及 含有大于CeO 2 2质量的ZrO 2 O 2的第二混合氧化物。
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公开(公告)号：US20080269046A1
公开(公告)日：2008-10-30
申请号：US12109768
申请日：2008-04-25
CPC分类号： B01D53/945 , B01D2255/1021 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2255/9022 , B01D2257/00 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01D2258/014 , B01J23/002 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0242 , B01J37/0244 , B01J37/031 , B01J37/038 , B01J2523/31 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/3725 , B01J2523/48 , B01J2523/824 , F01N3/2828 , F01N2510/06 , F01N2510/0684 , Y02T10/22
摘要： In an exhaust gas purification catalyst that contains an oxygen storage component containing Ce and Zr, alumina and a catalytic metal, a plurality of primary particles of the oxygen storage component and a plurality of primary particles of the alumina agglomerate to form each of mixed oxide particles and the catalytic metal includes Pd doped in the oxygen storage component particles to constitute each of the oxygen storage component particles with Ce and Zr and exposed at the surfaces of the oxygen storage component particles and Pd adhered to the surfaces of the oxygen storage component particles and the surfaces of the alumina particles.
摘要翻译： 在含有含有Ce和Zr的氧气储存组分，氧化铝和催化金属的废气净化催化剂中，存储多个氧储存组分的初级颗粒和多个氧化铝附聚的初级颗粒以形成混合的氧化物颗粒 并且催化金属包含掺杂在储氧组分颗粒中的Pd，以构成具有Ce和Zr的每个储氧组分颗粒，并暴露在储氧组分颗粒和附着在储氧组分颗粒表面上的Pd表面; 氧化铝颗粒的表面。
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