公开(公告)号：US20090099013A1

公开(公告)日：2009-04-16

申请号：US12300651

申请日：2007-06-08

申请人： Akira Morikawa ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Kae Yamamura ,  Takeru Yoshida ,  Akemi Sato

发明人： Akira Morikawa ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Kae Yamamura ,  Takeru Yoshida ,  Akemi Sato

IPC分类号： B01J23/63 ,  B01J21/06 ,  B01J21/04

CPC分类号： C01B13/363 ,  B01D53/945 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/40 ,  B01D2255/407 ,  B01J23/002 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J2523/00 ,  C01G25/02 ,  Y02T10/22 ,  B01J2523/31 ,  B01J2523/3706 ,  B01J2523/3725 ,  B01J2523/48 ,  B01J2523/822

摘要： A particulate inorganic oxide contains an aluminum oxide, a metal oxide forming no composite oxide with an aluminum oxide, and at least one additional element selected from the group consisting of rare earth elements and alkaline earth elements. In the inorganic oxide, a percentage content of the additional element to a total amount of aluminum in the aluminum oxide, a metal element in the metal oxide, and the additional element is in a range from 1.1 at % to 8.0 at % in terms of element content. At least 80% of primary particles in the inorganic oxide have a particle diameter of 100 nm or smaller. At least a part of the primary particles have a surface concentrated region where a percentage content of the additional element is locally increased in a surface layer part thereof. The content of the additional element in the surface concentrated region to a whole amount of the inorganic oxide is in a range from 0.06% by mass to 0.98% by mass in terms of oxide amount.

摘要翻译： 颗粒状无机氧化物含有氧化铝，不与氧化铝形成复合氧化物的金属氧化物和至少一种选自稀土元素和碱土金属元素的附加元素。 在无机氧化物中，相对于氧化铝中的铝总量，金属氧化物中的金属元素和附加元素的添加元素的含量百分含量在1.1at％至8.0at％的范围内，以 元素内容。 无机氧化物中的至少80％的一次粒子的粒径为100nm以下。 至少一部分初级颗粒具有表面浓缩区域，其中附加元素的百分含量在其表面层部分局部增加。 表面浓缩区域中的附加元素与无机氧化物的总量的含量相对于氧化物量为0.06质量％〜0.98质量％。

公开(公告)号：US20080090722A1

公开(公告)日：2008-04-17

申请号：US11632945

申请日：2005-07-22

申请人： Toshitaka Tanabe ,  Akira Morikawa ,  Naoki Takahashi ,  Hiromasa Suzuki ,  Akemi Sato ,  Mamoru Ishikiriyama ,  Takaaki Kanazawa ,  Oji Kuno

发明人： Toshitaka Tanabe ,  Akira Morikawa ,  Naoki Takahashi ,  Hiromasa Suzuki ,  Akemi Sato ,  Mamoru Ishikiriyama ,  Takaaki Kanazawa ,  Oji Kuno

IPC分类号： B01J23/10 ,  B32B9/00

CPC分类号： B01D53/945 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/20715 ,  B01J21/066 ,  B01J23/63 ,  B01J32/00 ,  B01J35/0006 ,  B01J37/0205 ,  Y02T10/22

摘要： The catalyst carrier in accordance with the present invention is a catalyst carrier comprising a support containing an oxide and an element in group 3A of the periodic table, and a coating part covering at least a part of a surface of the support; wherein the coating part contains an element in group 3A of the periodic table; and wherein the element in group 3A contained in the coating part has a concentration higher than that of the element in group 3A contained in the support. In this case, even when a catalyst in which rhodium is supported by the catalyst carrier is used for a long time in a high temperature environment, the grain growth of rhodium particles can be suppressed, and the catalyst can fully be prevented from lowering its activity.

摘要翻译： 根据本发明的催化剂载体是一种催化剂载体，其包含含有周期表第3A族中的氧化物和元素的载体和覆盖载体表面的至少一部分的涂层部分; 其中涂层部分含有元素周期表的第3A族元素; 并且其中包含在涂层部分中的组3A中的元素的浓度高于载体中所含的3A族元素的浓度。 在这种情况下，即使在高温环境下长时间使用铑负载催化剂载体的催化剂也能够抑制铑粒子的晶粒生长，能够充分防止催化剂的活性降低 。

公开(公告)号：US20180236401A1

公开(公告)日：2018-08-23

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 ,  B01J37/00 ,  B01J35/10 ,  C01F17/00 ,  F01N3/10

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：US20180071680A1

公开(公告)日：2018-03-15

申请号：US15561656

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 ,  B01J23/63 ,  F01N3/10 ,  B01J35/10

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.

公开(公告)号：US09387464B2

公开(公告)日：2016-07-12

申请号：US14384283

申请日：2013-04-26

申请人： Masahide Miura ,  Atsushi Tanaka ,  Takahiro Suzuki ,  Tadashi Suzuki ,  Toshitaka Tanabe ,  Naoki Takahashi

发明人： Masahide Miura ,  Atsushi Tanaka ,  Takahiro Suzuki ,  Tadashi Suzuki ,  Toshitaka Tanabe ,  Naoki Takahashi

IPC分类号： B01J23/00 ,  B01J23/08 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/56 ,  B01J23/70 ,  B01J23/74 ,  B01J23/89 ,  B01J35/00 ,  B01J23/745 ,  B01J23/83 ,  C01G25/00 ,  C01G49/00 ,  B01J37/02 ,  B01J37/03

CPC分类号： B01J23/894 ,  B01J21/066 ,  B01J23/10 ,  B01J23/745 ,  B01J23/83 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0248 ,  B01J37/03 ,  C01G25/00 ,  C01G49/0018 ,  C01G49/0054 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/45 ,  C01P2004/61 ,  C01P2006/12

摘要： A composite oxide with a high oxygen storage capacity is provided without using cerium. The composite oxide is an iron oxide-zirconia composite oxide containing iron, zirconium, and a rare-earth element. The total content of Fe2O3, ZrO2, and an oxide of the rare-earth element is not less than 90 mass %, the content of an iron oxide in terms of Fe2O3 is 10 to 90 mass %, and the absolute value of the covariance COV(Fe, Zr+X) of the composite oxide, which has been baked in the atmosphere at a temperature of greater than or equal to 900° C. for 5 hours or more, is not greater than 20.

摘要翻译： 提供具有高储氧能力的复合氧化物，而不使用铈。 复合氧化物是含有铁，锆和稀土元素的氧化铁 - 氧化锆复合氧化物。 Fe2O3，ZrO2和稀土类元素的氧化物的总含量为90质量％以上，Fe 2 O 3的氧化铁含量为10〜90质量％，协方差COV的绝对值 在大气中在大气压900℃以上焙烧5小时以上的复合氧化物（Fe，Zr + X）不大于20。

公开(公告)号：US08105561B2

公开(公告)日：2012-01-31

申请号：US12225692

申请日：2006-12-01

申请人： Miho Hatanaka ,  Toshitaka Tanabe ,  Yasutaka Nagai ,  Toshio Yamamoto ,  Kazuhiko Dohmae ,  Nobuyuki Takagi ,  Masahide Miura ,  Yasuo Ikeda

发明人： Miho Hatanaka ,  Toshitaka Tanabe ,  Yasutaka Nagai ,  Toshio Yamamoto ,  Kazuhiko Dohmae ,  Nobuyuki Takagi ,  Masahide Miura ,  Yasuo Ikeda

IPC分类号： B01J23/40 ,  B01J23/38 ,  B01J23/42 ,  B01D53/56 ,  B01D53/34 ,  G05D23/00

CPC分类号： B01D53/945 ,  B01D2255/102 ,  B01J23/002 ,  B01J23/63 ,  B01J23/894 ,  B01J23/8946 ,  B01J23/96 ,  B01J35/006 ,  B01J35/0066 ,  B01J35/1014 ,  B01J37/0201 ,  B01J37/0205 ,  B01J37/0207 ,  B01J37/03 ,  B01J38/10 ,  B01J38/12 ,  B01J2523/00 ,  F01N3/2006 ,  F01N11/002 ,  F01N2550/02 ,  Y02T10/22 ,  Y02T10/47 ,  B01J2523/3706 ,  B01J2523/48 ,  B01J2523/3712 ,  B01J2523/3718 ,  B01J2523/36

摘要： A catalyst for purification of exhaust gas in which a noble metal is supported on a metal-oxide support wherein, in a oxidation atmosphere, the noble metal exists on the surface of the support in high oxidation state, and the noble metal binds with a cation of the support via an oxygen atom on the surface of the support to form a surface oxide layer and, in a reduction atmosphere, the noble metal exists on the surface of the support in a metal state, and an amount of noble metal exposed at the surface of the support, measured by CO chemisorption, is 10% or more in atomic ratio to a whole amount of the noble metal supported on the support.

摘要翻译： 一种用于净化废气的催化剂，其中贵金属负载在金属氧化物载体上，其中在氧化气氛中贵金属以高氧化态存在于载体的表面上，贵金属与阳离子结合 的载体上的氧原子形成表面氧化物层，并且在还原气氛中，贵金属以金属状态存在于载体的表面上，并且贵金属的量在 通过CO化学吸附测定的载体表面与支撑在载体上的贵金属的全部量的原子比为10％以上。

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：US20090104088A1

公开(公告)日：2009-04-23

申请号：US12295369

申请日：2007-03-29

申请人： Nobuyuki Takagi ,  Masahide Miura ,  Shinichi Matsumoto ,  Toshitaka Tanabe ,  Yasutaka Nagai ,  Miho Hatanaka ,  Kazuhiko Dohmae ,  Toshio Yamamoto ,  Yasuo Ikeda

发明人： Nobuyuki Takagi ,  Masahide Miura ,  Shinichi Matsumoto ,  Toshitaka Tanabe ,  Yasutaka Nagai ,  Miho Hatanaka ,  Kazuhiko Dohmae ,  Toshio Yamamoto ,  Yasuo Ikeda

IPC分类号： F01N3/20 ,  F01N11/00

CPC分类号： F01N3/0814 ,  F01N3/0842 ,  F01N3/0864 ,  F01N3/0885 ,  F01N3/101 ,  F01N3/22 ,  F01N13/009 ,  F01N2270/00 ,  F01N2370/00 ,  F01N2560/022 ,  F01N2560/026 ,  F01N2570/16 ,  Y02T10/22

摘要： An exhaust gas purification system includes: a catalyst (3) provided in an exhaust gas passage of an internal combustion engine (1) and having a carrier containing a basic oxide and platinum carried on the carrier; a catalyst (4) for purifying NOx; and oxygen supply means (2).

摘要翻译： 排气净化系统包括：设置在内燃机（1）的排气通道中并具有承载在载体上的基本氧化物和铂的载体的催化剂（3） 用于净化NOx的催化剂（4） 和供氧装置（2）。

公开(公告)号：US20090069174A1

公开(公告)日：2009-03-12

申请号：US12298556

申请日：2007-05-15

申请人： Akira Morikawa ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Takeru Yoshida ,  Akemi Sato

发明人： Akira Morikawa ,  Toshitaka Tanabe ,  Naoki Takahashi ,  Takeru Yoshida ,  Akemi Sato

IPC分类号： B01J21/08 ,  B01J23/46 ,  B01J23/58 ,  B01J21/06 ,  B01J23/44 ,  B01J23/42 ,  B01J23/63 ,  B01J21/04

CPC分类号： B01D53/944 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/204 ,  B01D2255/2047 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/90 ,  B01D2255/904 ,  B01D2255/9207 ,  B01J23/63 ,  B01J35/002 ,  F01N3/0857 ,  F01N3/2803 ,  F01N2370/02 ,  Y02T10/20

摘要： A catalyst for purification of exhaust gases, produced by use of a catalyst component A, a catalyst component B, and a binder, the catalyst component A being produced by supporting Rh on a catalyst support for Rh, having a CO2 adsorption amount per unit weight of from 25 μmol·g−1 to 60 μmol·g−1, and having a CO2 adsorption amount per unit specific surface area of from 0.2 μmol·m−2·g1 to 2.3 μmol·m−2·g1, the catalyst having a CO2 adsorption amount per unit weight of from 18 μmol·g−1 to 60 μmol·g−1 and a CO2 adsorption amount per unit specific surface area of from 0.2 μmol·m−2·g1 to 2.5 μmol·m−2·g1, and a ratio of the CO2 adsorption amount per unit weight of the catalyst to the CO2 adsorption amount per unit weight of the catalyst component A [(CO2 adsorption amount of the catalyst/CO2 adsorption amount of the catalyst component A)×100] being 75% or more.

摘要翻译： 通过使用催化剂组分A，催化剂组分B和粘合剂制备的用于净化废气的催化剂，催化剂组分A通过将Rh负载在每单位重量的CO 2吸附量的Rh催化剂载体上 的25mumol.g-1至60mumol.g-1，并且每单位比表面积的CO 2吸附量为0.2μmol·m-2.g1〜2.3μmol·m-2.g1，催化剂具有 每单位重量的二氧化碳吸附量为18mumol.g-1至60mumg.g-1，每单位比表面积的CO 2吸附量为0.2μmol·m-2.g1〜2.5μmol·m-2。 g1，催化剂单位重量的CO 2吸附量与催化剂成分A的每单位重量的CO 2吸附量的比例[催化剂成分A的催化剂/ CO 2吸附量的CO 2吸附量]×100]为 75％以上。

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.