公开(公告)号：US20140235431A1

公开(公告)日：2014-08-21

申请号：US14259933

申请日：2014-04-23

Applicant: Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Yuji Yabuzaki

Inventor： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Yuji Yabuzaki

IPC: B01J27/053 ,  B01D53/94 ,  B01J31/26

CPC classification number: B01D53/944 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/204 ,  B01D2255/2042 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2255/9202 ,  B01J23/58 ,  B01J27/053 ,  B01J31/26 ,  B01J35/023 ,  B01J37/0215 ,  B01J37/0219 ,  B01J37/0244 ,  F01N2370/02 ,  F01N2510/06 ,  F01N2510/0684 ,  Y02T10/22

Abstract: An exhaust gas-purifying catalyst includes a substrate, and a catalytic layer facing the substrate and including a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope. Another exhaust gas-purifying catalyst includes a substrate, and a catalytic layer formed on the substrate using slurry containing a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope.

Abstract translation: 废气净化催化剂包括基材和面向基材的催化剂层，并且包含贵金属，氧化铝，储氧材料和平均粒径在0.01以下的碱土金属的硫酸盐 通过使用扫描型电子显微镜观察得到的平均粒径为0.70μm。 另一种废气净化催化剂包括基材和使用含有贵金属，氧化铝，储氧材料和平均粒径落在一定范围内的碱土金属硫酸盐的浆料在基材上形成的催化剂层 为0.01〜0.70μm，通过使用扫描型电子显微镜观察得到的平均粒径。

公开(公告)号：US08309488B2

公开(公告)日：2012-11-13

申请号：US11995981

申请日：2006-07-18

Applicant: Ichiro Kitamura ,  Kenichi Taki ,  Akimasa Hirai

Inventor： Ichiro Kitamura ,  Kenichi Taki ,  Akimasa Hirai

IPC: B01J23/00 ,  B01J21/00 ,  B01J20/00 ,  B01D50/00 ,  B01D53/34

CPC classification number: B01J35/0006 ,  B01D53/945 ,  B01D53/9477 ,  B01D2255/1025 ,  B01D2255/407 ,  B01D2255/9022 ,  B01J23/63 ,  B01J37/0244 ,  F01N3/10 ,  F01N2370/02 ,  F01N2510/06 ,  Y02T10/22

Abstract: An exhaust gas purifying catalyst includes a catalyst substrate and a catalyst coating layer containing a noble metal and a refractory inorganic oxide. The catalyst coating layer includes an upstream portion located upstream and a downstream portion located downstream in a flow direction of an exhaust gas. The upstream portion has a layered structure including an upstream portion inside layer containing a cerium-zirconium composite oxide in which a relative proportion of CeO2 is 50 to 95 wt %, as the refractory inorganic oxide and an upstream portion outside layer containing a cerium-zirconium composite oxide in which a relative proportion of ZrO2 is 50 to 95 wt %, as the refractory inorganic oxide. The upstream portion outside layer and the downstream portion contain Rh as the noble metal, and an amount of Rh contained in the upstream portion outside layer is larger than an amount of Rh contained in the downstream portion.

Abstract translation: 废气净化催化剂包括催化剂基质和含有贵金属和耐火无机氧化物的催化剂涂层。 催化剂涂层包括位于上游的上游部分和位于排气流动方向下游的下游部分。 上游部分具有包括上游部分内层的层状结构，所述上层部分内层含有CeO 2的相对比例为50〜95重量％的铈 - 锆复合氧化物作为耐火无机氧化物，以及含有铈锆的上游部分外层 作为耐火性无机氧化物，ZrO 2的相对比例为50〜95重量％的复合氧化物。 上游部分外层和下游部分含有Rh作为贵金属，并且上游部分外层中包含的Rh的量大于下游部分中包含的Rh的量。

公开(公告)号：US20120149557A1

公开(公告)日：2012-06-14

申请号：US13402770

申请日：2012-02-22

Applicant: Sho Hoshino ,  Akimasa Hirai ,  Kenichi Taki ,  Keiichi Narita ,  Satoshi Matsueda ,  Asuka Hori ,  Masahiro Kusaka

Inventor： Sho Hoshino ,  Akimasa Hirai ,  Kenichi Taki ,  Keiichi Narita ,  Satoshi Matsueda ,  Asuka Hori ,  Masahiro Kusaka

IPC: B01J27/053 ,  B01J23/02 ,  B01J23/10 ,  B01J23/00 ,  B01J23/58

CPC classification number: B01D53/9422 ,  B01D2255/10 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2042 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/908 ,  B01D2257/404 ,  B01J23/002 ,  B01J23/58 ,  B01J23/63 ,  B01J35/002 ,  B01J35/023 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/031 ,  B01J2523/00 ,  F01N3/10 ,  B01J2523/36 ,  B01J2523/3712 ,  B01J2523/48

Abstract: An exhaust gas-purifying catalyst includes first particles of oxygen storage material, second particles of one or more alkaline-earth metal elements and/or compounds thereof interposed between the first particles, and third particles of one or more precious metal elements interposed between the first particles. A spectrum of a first characteristic X-ray intensity for one of the one or more alkaline-earth metal elements and a spectrum of a second characteristic X-ray intensity for one of the one or more precious metal elements that are obtained by performing a line analysis using energy-dispersive X-ray spectrometry along a length of 500 nm have a correlation coefficient σ(AE,PM) of 0.70 or more.

Abstract translation: 废气净化催化剂包括第一颗粒的储氧材料，介于第一颗粒之间的一种或多种碱土金属元素和/或其化合物的第二颗粒和介于第一颗粒之间的一种或多种贵金属元素的第三颗粒 粒子。 一种或多种碱土金属元素之一的第一特征X射线强度的光谱和通过执行线获得的一种或多种贵金属元素之一的第二特征X射线强度的光谱 使用能量色散X射线光谱分析法，沿500nm的长度分析，相关系数（AE，PM）为0.70以上。

公开(公告)号：US20120088655A1

公开(公告)日：2012-04-12

申请号：US13327375

申请日：2011-12-15

Applicant: Yuji Yabuzaki ,  Akimasa Hirai ,  Kenichi Taki ,  Tomohito Mizukami ,  Satoshi Matsueda

Inventor： Yuji Yabuzaki ,  Akimasa Hirai ,  Kenichi Taki ,  Tomohito Mizukami ,  Satoshi Matsueda

IPC: B01J21/04 ,  B01J27/232 ,  B01J27/25 ,  B01J27/053

CPC classification number: B01J23/58 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2027 ,  B01D2255/204 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/908 ,  B01J23/63 ,  B01J27/053 ,  B01J35/002 ,  B01J37/0215 ,  B01J37/0244 ,  B01J37/0248 ,  Y02T10/22 ,  Y10T428/24149 ,  Y10T428/24157 ,  Y10T428/24165

Abstract: An exhaust gas-purifying catalyst includes a substrate, and a catalytic layer supported by the substrate. The catalytic layer includes a support made of alumina, an oxygen storage material, an alkaline earth metal and/or a compound of alkaline-earth metal selectively supported by a surface of the support and dispersed on the surface of the support, and a precious metal supported by the surface of the support. A ratio of a number of moles of the alkaline-earth metal in the catalytic layer with respect to a volumetric capacity of the exhaust gas-purifying catalyst falls within a range of 0.0004 mol/L to 0.35 mol/L.

Abstract translation: 废气净化催化剂包括基板和由基板支撑的催化剂层。 催化剂层包括由氧化铝制成的载体，储氧材料，碱土金属和/或由载体表面选择性地分散在载体表面上的碱土金属的化合物和贵金属 由支撑体的表面支撑。 催化剂层中的碱土类金属的摩尔数相对于排气净化催化剂的体积容量的比例在0.0004mol / L〜0.35mol / L的范围内。

公开(公告)号：US20120065058A1

公开(公告)日：2012-03-15

申请号：US13301859

申请日：2011-11-22

Applicant: Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Yuji Yabuzaki

Inventor： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Yuji Yabuzaki

IPC: B01J21/04

CPC classification number: B01J37/0244 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/407 ,  B01D2255/9022 ,  B01J23/58 ,  B01J37/0219 ,  F01N2370/02 ,  F01N2510/06 ,  F01N2510/0684 ,  Y02T10/22

Abstract: An exhaust gas-purifying catalyst according to the present invention includes a substrate, a first catalytic layer facing the substrate and includes at least one precious metal selected from the group consisting of palladium and platinum, and alumina doped with an alkaline-earth metal element, and a second catalytic layer facing the substrate with the first catalytic layer interposed therebetween or intervening between the substrate and the first catalytic layer, the second catalytic layer includes rhodium and alumina doped with the alkaline-earth metal element.

Abstract translation: 根据本发明的废气净化催化剂包括基材，面向基材的第一催化剂层，并且包括选自钯和铂中的至少一种贵金属和掺杂有碱土金属元素的氧化铝， 以及第二催化剂层，其中所述第一催化剂层位于所述基板之间或介于所述基板和所述第一催化剂层之间，所述第二催化剂层包括掺杂有所述碱土金属元素的铑和氧化铝。

公开(公告)号：US08039418B2

公开(公告)日：2011-10-18

申请号：US12635943

申请日：2009-12-11

Applicant: Ichiro Kitamura ,  Akimasa Hirai ,  Kenichi Taki

Inventor： Ichiro Kitamura ,  Akimasa Hirai ,  Kenichi Taki

IPC: B01J23/56 ,  B01J23/63 ,  B01J23/58 ,  B01D53/94

CPC classification number: F01N3/2828 ,  B01D53/925 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/9022 ,  B01D2255/908 ,  B01J23/58 ,  B01J23/63 ,  B01J37/0244 ,  F01N2510/0682 ,  F01N2570/16

Abstract: A high exhaust gas-purifying performance is achieved. An exhaust gas-purifying catalyst includes a substrate, a lower layer covering the substrate and including an oxygen storage material and palladium, and an upper layer covering the lower layer and including rhodium and a carrier supporting it. The lower layer is rhodium-free. The upper layer has an oxygen storage capacity lower than that of the lower layer.

Abstract translation: 实现了高排气净化性能。 废气净化催化剂包括基材，覆盖基材的下层，并且包含储氧材料和钯，以及覆盖下层的上层，包括铑和支撑它的载体。 下层是无铑的。 上层具有比下层低的储氧能力。

公开(公告)号：US08580706B2

公开(公告)日：2013-11-12

申请号：US13301859

申请日：2011-11-22

Applicant: Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Yuji Yabuzaki

Inventor： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Yuji Yabuzaki

IPC: B01J23/00 ,  B01J21/00

CPC classification number: B01J37/0244 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/407 ,  B01D2255/9022 ,  B01J23/58 ,  B01J37/0219 ,  F01N2370/02 ,  F01N2510/06 ,  F01N2510/0684 ,  Y02T10/22

Abstract: An exhaust gas-purifying catalyst according to the present invention includes a substrate, a first catalytic layer facing the substrate and includes at least one precious metal selected from the group consisting of palladium and platinum, and alumina doped with an alkaline-earth metal element, and a second catalytic layer facing the substrate with the first catalytic layer interposed therebetween or intervening between the substrate and the first catalytic layer, the second catalytic layer includes rhodium and alumina doped with the alkaline-earth metal element.

Abstract translation: 根据本发明的废气净化催化剂包括基材，面向基材的第一催化剂层，并且包括选自钯和铂中的至少一种贵金属和掺杂有碱土金属元素的氧化铝， 以及第二催化剂层，其中所述第一催化剂层位于所述基板之间或介于所述基板和所述第一催化剂层之间，所述第二催化剂层包括掺杂有所述碱土金属元素的铑和氧化铝。

公开(公告)号：US08318632B2

公开(公告)日：2012-11-27

申请号：US13163341

申请日：2011-06-17

Applicant: Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Keiichi Narita ,  Yuji Yabuzaki ,  Daisuke Ochiai

Inventor： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Keiichi Narita ,  Yuji Yabuzaki ,  Daisuke Ochiai

IPC: B01J23/00 ,  B01J21/00 ,  B01J20/00 ,  B01J29/00 ,  B01J35/00 ,  B01J37/00

CPC classification number: F01N3/10 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/407 ,  B01D2255/9022 ,  B01J23/02 ,  B01J23/58 ,  B01J23/63 ,  B01J35/002 ,  B01J37/0234 ,  B01J37/0244 ,  B01J37/031 ,  F01N3/0814 ,  F01N3/0864 ,  F01N2370/02 ,  F01N2510/06 ,  F01N2510/0684 ,  F01N2570/14 ,  Y02T10/22

Abstract: An exhaust gas purification catalyst includes a substrate, and a first catalyst layer formed on the substrate, the first catalyst layer containing palladium and/or platinum and alumina doped with an alkaline-earth metal element. The exhaust gas purification catalyst has a correlation coefficient ρAl,AE given by the following formula of 0.75 or more: ρ Al , AE = C Al , AE σ Al ⁢ σ AE . ( 1 )

Abstract translation: 废气净化催化剂包括基板和形成在基板上的第一催化剂层，含有钯和/或铂的第一催化剂层和掺杂有碱土金属元素的氧化铝。 废气净化催化剂具有以下公式为0.75以上的相关系数α：Al，AE：＆rgr; Al，AE = C A1，AE＆sgr; Al＆sgr; AE。 （1）

公开(公告)号：US20120122672A1

公开(公告)日：2012-05-17

申请号：US13356203

申请日：2012-01-23

Applicant: Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Keiichi Narita ,  Asuka Hori ,  Masahiro Kusaka

Inventor： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Keiichi Narita ,  Asuka Hori ,  Masahiro Kusaka

IPC: B01J23/10 ,  B01J23/63

CPC classification number: B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/407 ,  B01D2255/908 ,  B01J23/002 ,  B01J23/63 ,  B01J35/002 ,  B01J37/0009 ,  B01J37/031 ,  B01J2523/00 ,  F01N3/0864 ,  F01N3/10 ,  F01N2370/02 ,  Y02T10/20 ,  Y02T10/22 ,  B01J2523/36 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/822 ,  B01J2523/47 ,  B01J2523/824 ,  B01J2523/828 ,  B01J2523/3725 ,  B01J2523/69 ,  B01J2523/41

Abstract: An exhaust gas-purifying catalyst includes first particles of oxygen storage material, second particles of one or more rare-earth elements other than cerium and/or compounds thereof interposed between the first particles, and third particles of one or more precious metal elements interposed between the first particles, wherein a spectrum of a characteristic X-ray intensity for one of the rare-earth element(s) and a spectrum of a characteristic X-ray intensity for one of the precious metal element(s) that are obtained by performing a line analysis using energy-dispersive X-ray spectrometry along a length of 500 nm have a correlation coefficient of 0.68 or more.

Abstract translation: 废气净化催化剂包括第一颗粒的储氧材料，一个或多个除铈之外的稀土元素的第二颗粒和/或介于第一颗粒之间的化合物，以及介于第一颗粒之间的一种或多种贵金属元素的第三颗粒 第一颗粒，其中稀土元素之一的特征X射线强度的光谱和贵金属元素之一的特征X射线强度的光谱是通过执行 使用沿着500nm长度的能量色散X射线光谱法的线分析具有0.68以上的相关系数。

公开(公告)号：US08168560B2

公开(公告)日：2012-05-01

申请号：US12067837

申请日：2006-10-04

Applicant: Kenichi Taki ,  Akimasa Hirai ,  Ichiro Kitamura

Inventor： Kenichi Taki ,  Akimasa Hirai ,  Ichiro Kitamura

IPC: B01D53/94 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46

CPC classification number: B01J37/0244 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01J23/40 ,  B01J23/464 ,  B01J23/63

Abstract: An exhaust gas purifying catalyst is provided which includes a catalyst substrate and a catalyst coating layer. The catalyst coating layer is formed on the catalyst substrate and contains a noble metal and a refractory inorganic oxide. The catalyst coating layer has a layered structure including an A-layer and a B-layer. The A-layer contains Pd and Pt as the noble metal in a weight ratio of 3:1 to 20:1. The B-layer includes Rh as the noble metal.

Abstract translation: 提供了一种废气净化催化剂，其包括催化剂基质和催化剂涂层。 催化剂涂层形成在催化剂基材上并含有贵金属和耐火无机氧化物。 催化剂涂层具有包括A层和B层的层状结构。 A层含有Pd和Pt作为贵金属，重量比为3：1至20：1。 B层包括Rh作为贵金属。