公开(公告)号：US20120283091A1

公开(公告)日：2012-11-08

申请号：US13519906

申请日：2010-12-27

申请人： Tomoaki Sunada ,  Hideaki Ueno ,  Yuki Aoki ,  Takeru Yoshida ,  Masahiro Nakahara ,  Masaaki Kawai ,  Singo Sakagami

发明人： Tomoaki Sunada ,  Hideaki Ueno ,  Yuki Aoki ,  Takeru Yoshida ,  Masahiro Nakahara ,  Masaaki Kawai ,  Singo Sakagami

IPC分类号： B01J23/46 ,  B01J21/04

CPC分类号： B01J35/002 ,  B01D53/945 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01J23/002 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0244 ,  B01J37/0248 ,  B01J37/031 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/31 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/3718 ,  B01J2523/36

摘要： A catalyst for purifying exhaust gases includes a substrate, and a catalytic layer. The catalytic layer includes a lower catalytic layer, a first upper catalytic layer, and a second upper catalytic layer. The lower catalytic layer being loaded with Pd and/or Pt is formed on the substrate. The first upper catalytic layer being loaded with Pd covers an upstream side of the lower catalytic layer, and exhibits a concentration of loaded Pd that falls in a range of from 4.5 to 12% by mass when the entirety of the first upper catalytic layer is taken as 100% by mass. The second upper catalytic layer being loaded with Rh covers a downstream side of the lower catalytic layer.

摘要翻译： 用于净化废气的催化剂包括基材和催化剂层。 催化层包括下催化层，第一上催化层和第二上催化层。 负载有Pd和/或Pt的下层催化剂层形成在基板上。 负载有Pd的第一上部催化剂层覆盖下部催化剂层的上游侧，并且当采用全部第一上部催化剂层时，载体Pd的浓度为4.5〜12质量％ 为100质量％。 负载有Rh的第二上部催化剂层覆盖下部催化剂层的下游侧。

公开(公告)号：US08501661B2

公开(公告)日：2013-08-06

申请号：US13519906

申请日：2010-12-27

申请人： Tomoaki Sunada ,  Hideaki Ueno ,  Yuki Aoki ,  Takeru Yoshida ,  Masahiro Nakahara ,  Masaaki Kawai ,  Singo Sakagami

发明人： Tomoaki Sunada ,  Hideaki Ueno ,  Yuki Aoki ,  Takeru Yoshida ,  Masahiro Nakahara ,  Masaaki Kawai ,  Singo Sakagami

IPC分类号： B01J23/00

CPC分类号： B01J35/002 ,  B01D53/945 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01J23/002 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0244 ,  B01J37/0248 ,  B01J37/031 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/31 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/3718 ,  B01J2523/36

摘要： A catalyst for purifying exhaust gases includes a substrate, and a catalytic layer. The catalytic layer includes a lower catalytic layer, a first upper catalytic layer, and a second upper catalytic layer. The lower catalytic layer being loaded with Pd and/or Pt is formed on the substrate. The first upper catalytic layer being loaded with Pd covers an upstream side of the lower catalytic layer, and exhibits a concentration of loaded Pd that falls in a range of from 4.5 to 12% by mass when the entirety of the first upper catalytic layer is taken as 100% by mass. The second upper catalytic layer being loaded with Rh covers a downstream side of the lower catalytic layer.

摘要翻译： 用于净化废气的催化剂包括基材和催化剂层。 催化层包括下催化层，第一上催化层和第二上催化层。 负载有Pd和/或Pt的下层催化剂层形成在基板上。 负载有Pd的第一上部催化剂层覆盖下部催化剂层的上游侧，并且当采用全部第一上部催化剂层时，载体Pd的浓度为4.5〜12质量％ 为100质量％。 负载有Rh的第二上部催化剂层覆盖下部催化剂层的下游侧。

公开(公告)号：US08580705B2

公开(公告)日：2013-11-12

申请号：US13520363

申请日：2010-12-23

申请人： Yuki Aoki ,  Takeru Yoshida ,  Shingo Sakagami ,  Masaaki Kawai ,  Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi

发明人： Yuki Aoki ,  Takeru Yoshida ,  Shingo Sakagami ,  Masaaki Kawai ,  Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi

IPC分类号： B01J23/10

CPC分类号： B01D53/945 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/014 ,  B01J21/066 ,  B01J23/44 ,  B01J23/63 ,  B01J27/24 ,  B01J37/0244 ,  B01J37/0248 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst includes a substrate that defines an exhaust gas passage; a lower catalyst layer formed over the substrate, and an upper catalyst layer formed over the lower catalyst layer. The lower catalyst layer has a lower catalytic precious metal that contains at least one of Pt and Pd, and a lower-layer carrier that supports the lower catalytic precious metal. The upper catalyst layer has an upper catalytic precious metal that contains Rh, and an upper-layer carrier that supports the upper catalytic precious metal. The upper-layer carrier includes an inorganic mixed oxide that contains Ce, Zr, Al, Nd, and at least one element selected from the group consisting of rare earth elements other than Ce and alkaline earth elements. The Nd is unevenly distributed in covering layers that covers surfaces of interior regions within the inorganic mixed oxide.

摘要翻译： 废气净化催化剂包括限定排气通道的基板; 形成在所述基板上的下催化剂层，以及形成在所述下催化剂层上的上催化剂层。 下部催化剂层具有含有Pt和Pd中的至少一种的低级催化贵金属和支持下催化贵金属的下层载体。 上部催化剂层具有含有Rh的上部催化贵金属和支持上部催化贵金属的上层载体。 上层载体包括含有Ce，Zr，Al，Nd的至少一种元素的无机混合氧化物和选自Ce和碱土金属元素以外的稀土元素中的至少一种元素。 Nd不均匀地分布在覆盖无机混合氧化物内部区域的表面的覆盖层中。

公开(公告)号：US20130029838A1

公开(公告)日：2013-01-31

申请号：US13520363

申请日：2010-12-23

申请人： Yuki Aoki ,  Takeru Yoshida ,  Shingo Sakagami ,  Masaaki Kawai ,  Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi

发明人： Yuki Aoki ,  Takeru Yoshida ,  Shingo Sakagami ,  Masaaki Kawai ,  Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi

IPC分类号： B01J23/63

CPC分类号： B01D53/945 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/014 ,  B01J21/066 ,  B01J23/44 ,  B01J23/63 ,  B01J27/24 ,  B01J37/0244 ,  B01J37/0248 ,  Y02T10/22

摘要： An exhaust gas purifying catalyst includes a substrate that defines an exhaust gas passage; a lower catalyst layer formed over the substrate, and an upper catalyst layer formed over the lower catalyst layer. The lower catalyst layer has a lower catalytic precious metal that contains at least one of Pt and Pd, and a lower-layer carrier that supports the lower catalytic precious metal. The upper catalyst layer has an upper catalytic precious metal that contains Rh, and an upper-layer carrier that supports the upper catalytic precious metal. The upper-layer carrier includes an inorganic mixed oxide that contains Ce, Zr, Al, Nd, and at least one element selected from the group consisting of rare earth elements other than Ce and alkaline earth elements. The Nd is unevenly distributed in covering layers that covers surfaces of interior regions within the inorganic mixed oxide.

摘要翻译： 废气净化催化剂包括限定排气通道的基板; 形成在所述基板上的下催化剂层，以及形成在所述下催化剂层上的上催化剂层。 下部催化剂层具有含有Pt和Pd中的至少一种的低级催化贵金属和支持下催化贵金属的下层载体。 上部催化剂层具有含有Rh的上部催化贵金属和支持上部催化贵金属的上层载体。 上层载体包括含有Ce，Zr，Al，Nd的至少一种元素的无机混合氧化物和选自Ce和碱土金属元素以外的稀土元素中的至少一种元素。 Nd不均匀地分布在覆盖无机混合氧化物内部区域的表面的覆盖层中。

公开(公告)号：US10384163B2

公开(公告)日：2019-08-20

申请号：US15534794

申请日：2015-12-11

申请人： Isao Chinzei ,  Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Yoshinori Saito ,  Hirotaka Ori ,  Kosuke Iizuka ,  Akira Morikawa

发明人： Isao Chinzei ,  Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Yoshinori Saito ,  Hirotaka Ori ,  Kosuke Iizuka ,  Akira Morikawa

IPC分类号： B01D53/94 ,  B01J37/02 ,  B01J37/03 ,  B01J35/00 ,  B01J23/00 ,  B01J23/10 ,  B01J23/63 ,  C01G25/02 ,  C01F17/00 ,  F01N3/10 ,  B01J35/10 ,  B01J37/00 ,  B01J35/02 ,  B01J37/08 ,  B01J27/053

摘要： The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % in relation to the total cation amount, and the molar ratio of (cerium+additional element):(zirconium) is within the range from 43:57 to 48:52.

公开(公告)号：US08043992B2

公开(公告)日：2011-10-25

申请号：US12682844

申请日：2008-10-17

申请人： Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Takeru Yoshida ,  Yuki Aoki

发明人： Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Takeru Yoshida ,  Yuki Aoki

IPC分类号： B01J23/00 ,  B01J21/00 ,  B01J20/00

CPC分类号： C01B3/38 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/908 ,  B01J23/002 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J35/04 ,  B01J37/033 ,  B01J2523/00 ,  B82Y30/00 ,  C01B3/06 ,  C01B3/52 ,  C01B7/0706 ,  C01B2203/0415 ,  C01B2203/047 ,  C01G25/006 ,  C01P2002/54 ,  C01P2004/64 ,  C01P2004/80 ,  Y02E60/36 ,  Y02P20/52 ,  Y02T10/22 ,  Y10T428/2982 ,  Y10T428/2991 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/3706 ,  B01J2523/3718 ,  B01J2523/3725

摘要： A particulate inorganic mixed oxide comprising: aluminum; zirconium; cerium; lanthanum and an additional element selected from the group consisting of neodymium and praseodymium, wherein the inorganic mixed oxide has at least 80% of primary particles with article diameters of 100 nm or less, and at least a part of the primary particles have an enriched surface region where the additional element is locally increased in a surface layer portion thereof.

摘要翻译： 一种颗粒状无机混合氧化物，包括：铝; 锆; 铈; 镧和选自钕和镨的另外的元素，其中所述无机混合氧化物具有至少80％的原料粒径为100nm或更小的初级颗粒，并且至少一部分初级颗粒具有富集表面 其中附加元件在其表面层部分中局部增加的区域。

公开(公告)号：US10576420B2

公开(公告)日：2020-03-03

申请号：US15534794

申请日：2015-12-11

申请人： Isao Chinzei ,  Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Yoshinori Saito ,  Hirotaka Ori ,  Kosuke Iizuka ,  Akira Morikawa

发明人： Isao Chinzei ,  Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Yoshinori Saito ,  Hirotaka Ori ,  Kosuke Iizuka ,  Akira Morikawa

IPC分类号： B01D53/94 ,  B01J23/00 ,  F01N3/10 ,  C01G25/02 ,  B01J23/10 ,  B01J23/63 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  C01F17/00 ,  B01J37/08 ,  B01J35/02 ,  B01J27/053

摘要： The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % in relation to the total cation amount, and the molar ratio of (cerium+additional element):(zirconium) is within the range from 43:57 to 48:52.

公开(公告)号：US10322406B2

公开(公告)日：2019-06-18

申请号：US15534841

申请日：2015-12-11

申请人： Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Isao Chinzei ,  Yoshinori Saito ,  Daisuke Ochiai ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Masanao Sato ,  Akiya Chiba ,  Akira Morikawa ,  Hirotaka Ori

发明人： Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Isao Chinzei ,  Yoshinori Saito ,  Daisuke Ochiai ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Masanao Sato ,  Akiya Chiba ,  Akira Morikawa ,  Hirotaka Ori

IPC分类号： F01N3/10 ,  B01D53/94 ,  B01J23/00 ,  B01J23/10 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  C01F17/00 ,  C01G25/00 ,  C01G25/02 ,  B01J27/053

摘要： The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the top layer of a catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % in relation to the total cation amount, and the molar ratio of (cerium+additional element):(zirconium) is within the range from 43:57 to 48:52.

公开(公告)号：US20100227757A1

公开(公告)日：2010-09-09

申请号：US12682844

申请日：2008-10-17

申请人： Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Takeru Yoshida ,  Yuki Aoki

发明人： Miho Hatanaka ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Takeru Yoshida ,  Yuki Aoki

IPC分类号： B01J23/10

CPC分类号： C01B3/38 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/908 ,  B01J23/002 ,  B01J23/10 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J35/04 ,  B01J37/033 ,  B01J2523/00 ,  B82Y30/00 ,  C01B3/06 ,  C01B3/52 ,  C01B7/0706 ,  C01B2203/0415 ,  C01B2203/047 ,  C01G25/006 ,  C01P2002/54 ,  C01P2004/64 ,  C01P2004/80 ,  Y02E60/36 ,  Y02P20/52 ,  Y02T10/22 ,  Y10T428/2982 ,  Y10T428/2991 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/3706 ,  B01J2523/3718 ,  B01J2523/3725

摘要： A particulate inorganic mixed oxide comprising: aluminum; zirconium; cerium; and first and second additional elements each selected from the group consisting of rare earth elements other than cerium and alkaline earth elements, whereina content of aluminum in the inorganic mixed oxide is 60 to 90 at %, in terms of element content, relative to a total amount of elements which form cations in the inorganic mixed oxide ; a content of cerium in the inorganic mixed oxide is 0.4 to 50 at %, in terms of element content, relative to a total amount of zirconium and cerium in the inorganic mixed oxide; a content of a total amount of the first and second additional elements is 1 to 12 at %, in terms of element content, relative to the total amount of the elements which form cations in the inorganic mixed oxide; at least 80% of primary particles of the inorganic mixed oxide have a particle diameter of 100 nm or less; at least a part of the primary particles have an enriched surface region where a content of the second additional element is locally increased in a surface layer portion thereof; and an amount of the second additional element in the enriched surface region is 0.1 to 0.95% by mass, in terms of oxide, relative to a whole amount of the inorganic mixed oxide.

摘要翻译： 一种颗粒状无机混合氧化物，包括：铝; 锆; 铈; 以及从由铈和碱土类元素以外的稀土元素组成的组中选择的第一和第二附加元素，其中无机混合氧化物中的铝含量相对于元素含量为60〜90原子％ 在无机混合氧化物中形成阳离子的元素的总量; 无机混合氧化物中的铈的含量相对于无机混合氧化物中的锆和铈的总量，以元素含量计为0.4〜50原子％ 相对于在无机混合氧化物中形成阳离子的元素的总量，第一和第二附加元素的总量的含量以元素含量计为1〜12原子％ 无机混合氧化物的一次粒子的至少80％的粒径为100nm以下， 至少一部分初级颗粒具有富集的表面区域，其中第二附加元素的含量在其表层部分局部增加; 并且相对于无机混合氧化物的总量，富集表面区域中的第二附加元素的量以氧化物计为0.1〜0.95质量％。

公开(公告)号：US10556223B2

公开(公告)日：2020-02-11

申请号：US15534841

申请日：2015-12-11

申请人： Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Isao Chinzei ,  Yoshinori Saito ,  Daisuke Ochiai ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Masanao Sato ,  Akiya Chiba ,  Akira Morikawa ,  Hirotaka Ori

发明人： Hiromasa Suzuki ,  Takeru Yoshida ,  Masahide Miura ,  Yuki Aoki ,  Isao Chinzei ,  Yoshinori Saito ,  Daisuke Ochiai ,  Mitsuyoshi Okada ,  Toshitaka Tanabe ,  Akihiko Suda ,  Masanao Sato ,  Akiya Chiba ,  Akira Morikawa ,  Hirotaka Ori

IPC分类号： F01N3/10 ,  B01D53/94 ,  B01J23/00 ,  B01J23/10 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  C01F17/00 ,  C01G25/00 ,  C01G25/02 ,  B01J27/053

摘要： The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the top layer of a catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % in relation to the total cation amount, and the molar ratio of (cerium+additional element):(zirconium) is within the range from 43:57 to 48:52.