公开(公告)号：US10710023B2

公开(公告)日：2020-07-14

申请号：US16078082

申请日：2017-02-23

申请人： CATALER CORPORATION

发明人： Koki Yanagawa ,  Satoshi Matsueda ,  Yu Sakurada ,  Chihiro Kasuya

IPC分类号： F01N3/20 ,  B01D53/94 ,  B01J37/08 ,  B01J27/053 ,  B01J35/00 ,  B01J37/02 ,  F01N3/10 ,  B01J35/04 ,  B01J37/04

摘要： An exhaust gas purification catalyst, characterized by having a catalyst layer containing palladium, rhodium, and alumina, which supports a sulfate of an alkaline-earth metal selected from barium sulfate and strontium sulfate, and the correlation coefficients ρPd,AE and ρRh,AE calculated from the characteristic X-ray intensity measured using an electron beam micro-analyzer for the palladium, rhodium, and alkaline-earth metal being +0.75 to +1.00 and 0.00 to +0.25, respectively, using 350 points as measurement points obtained by equally dividing the catalyst layer into 351 parts in the thickness direction on a virtual straight line that runs through the catalyst layer in the thickness direction.

公开(公告)号：US10099204B2

公开(公告)日：2018-10-16

申请号：US15482961

申请日：2017-04-10

申请人： Cataler Corporation

发明人： Sho Hoshino ,  Akimasa Hirai ,  Kenichi Taki ,  Satoshi Matsueda ,  Yuji Yabuzaki

IPC分类号： B01J23/00 ,  B01J23/46 ,  B01J23/44 ,  B01J23/10 ,  B01J21/06 ,  B01J23/30 ,  B01J21/12 ,  B01J35/00 ,  B01J35/04 ,  B01J37/04 ,  B01J37/02 ,  B01D53/94 ,  F01N3/10

摘要： An exhaust gas-purifying catalyst of the present invention comprises a substrate, and one or more catalytic layers provided on the substrate, wherein at least one of the catalytic layers (i) contains a precious metal, alumina, and an acidic oxide element, (ii) has a correlation coefficient ρAl,AE of 0.70 or more, and (iii) has a correlation coefficient ρPM,AE of 0.70 or more.

公开(公告)号：US09833771B2

公开(公告)日：2017-12-05

申请号：US15037078

申请日：2014-11-11

申请人： CATALER CORPORATION

发明人： Takashi Goto ,  Kenichi Taki ,  Satoshi Matsueda

IPC分类号： B01J23/00 ,  B01J23/63 ,  B01J37/02 ,  B01D53/94 ,  B01J23/10 ,  B01J35/00 ,  B01J35/04 ,  F01N3/28

CPC分类号： B01J23/63 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/65 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2255/9202 ,  B01J23/10 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  F01N3/2803 ,  Y02T10/22

摘要： The exhaust gas purifying catalyst presented here includes a substrate and a catalyst coat layer formed on the surface of the substrate. The catalyst coat layer is formed in a laminate structure having two layers, with a first layer being nearer to the surface of the substrate and a second layer being relatively further from this surface. The second layer includes a carrier and a noble metal supported on the carrier. The first layer is a noble metal-free layer that does not contain a noble metal but does contain an OSC material having oxygen storage capacity.

公开(公告)号：US09789469B2

公开(公告)日：2017-10-17

申请号：US15434627

申请日：2017-02-16

申请人： Cataler Corporation

发明人： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Yuji Yabuzaki ,  Sho Hoshino

IPC分类号： B01J21/06 ,  B01J21/08 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/54 ,  B01J23/63 ,  B01J35/04 ,  B01D53/94

CPC分类号： B01J23/63 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20776 ,  B01D2255/30 ,  B01D2255/407 ,  B01D2255/908 ,  B01D2255/9202 ,  B01J23/002 ,  B01J23/6527 ,  B01J35/002 ,  B01J35/023 ,  B01J37/0201 ,  B01J37/0248 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/36 ,  B01J2523/3712 ,  B01J2523/47 ,  B01J2523/48 ,  B01J2523/822 ,  B01J2523/828 ,  B01J2523/824 ,  B01J2523/3706 ,  B01J2523/41 ,  B01J2523/69

摘要： An exhaust gas-purifying catalyst material includes first oxide particles having an average particle diameter Dav of 1 μm to 95 μm and having an oxygen storage capacity, second oxide particles having an average particle diameter Dav of 0.05 μm to 0.5 μm, containing a metal element, and having no oxygen storage capacity, precious metal particles, and acidic oxide particles. The material has a correlation coefficient ρ of 0.45 or more obtained using first characteristic X-ray intensity for the metal element contained in the second oxide particle, second characteristic X-ray intensity for an element other than oxygen contained in the acidic oxide particle, and third characteristic X-ray intensity for a precious metal element contained in the precious metal particle.

公开(公告)号：US10695752B2

公开(公告)日：2020-06-30

申请号：US16079338

申请日：2017-02-23

申请人： CATALER CORPORATION

发明人： Takara Misumi ,  Satoshi Matsueda

IPC分类号： B01J23/63 ,  B01D53/94 ,  B01J37/02 ,  F01N3/10 ,  B01J35/00 ,  B01J35/02

摘要： An exhaust-gas purifying catalyst includes a lower layer containing ceria-based oxide particles and an upper layer containing metal oxide particles and a precious metal supported on the metal oxide particles, wherein the exhaust-gas purifying catalyst is characterized in that the Rh content of the lower layer is equal to or less than 0.25 g/L, and also that the particle-size distribution of the ceria-based oxide particles in the lower layer, which is obtained by scanning electron microscopy, has a first peak in which the peak top thereof is in a region of 0.90-6.50 μm and a second peak in which the peak top thereof is in a region of 9.50-34.0 μm.

公开(公告)号：US10279338B2

公开(公告)日：2019-05-07

申请号：US15288740

申请日：2016-10-07

申请人： CATALER CORPORATION

发明人： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Sho Hoshino

IPC分类号： B01J23/89 ,  B01D53/94 ,  B01J23/00 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/58 ,  B01J23/652 ,  B01J35/00 ,  B01J37/03 ,  B01J37/08

摘要： An exhaust gas-purifying catalyst includes a support and a catalytic metal supported thereby. The support includes a composite oxide represented by AO.xB2-αCαO3, wherein A represents at least one of an element having a valence of 1 and an element having a valence of 2, B represents an element having a valence of 3, C represents one or more elements selected from iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, x represents a numerical value of 1 to 6, and α represents a numerical value greater than 0 and less than 2. The catalytic metal includes one or more precious metals selected from rhodium, palladium, and platinum.

公开(公告)号：US09849441B2

公开(公告)日：2017-12-26

申请号：US15037345

申请日：2014-12-04

申请人： CATALER CORPORATION

发明人： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki

IPC分类号： B01J23/10 ,  B01J23/63 ,  B01J37/03 ,  B01J35/00 ,  B01J35/10 ,  B01D53/94 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  F01N3/28

CPC分类号： B01J23/10 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2045 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/20715 ,  B01D2255/407 ,  B01D2255/908 ,  B01D2255/9202 ,  B01D2255/9207 ,  B01J23/42 ,  B01J23/44 ,  B01J23/464 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/1014 ,  B01J37/031 ,  B01J2523/00 ,  F01N3/2828 ,  Y02T10/22 ,  B01J2523/3712 ,  B01J2523/3725 ,  B01J2523/48 ,  B01J2523/36 ,  B01J2523/3706 ,  B01J2523/23

摘要： The exhaust gas-purifying catalyst of the invention contains oxide particles having interdispersed therein A crystallites that are loaded with a noble metal and B crystallites that are not loaded with a noble metal. The A crystallites loaded with a noble metal are composed of an oxide containing at least one of zirconium (Zr) and cerium (Ce). The B crystallites not loaded with a noble metal are composed of a cerium (Ce)-containing oxide which has a higher Ce content (mol %) than the oxide making up the A crystallites. The oxide particles have a specific surface area after 5 hours of heat treatment at 1,150° C. in open air of 30 m2/g or more.

公开(公告)号：US20170100709A1

公开(公告)日：2017-04-13

申请号：US15288740

申请日：2016-10-07

申请人： CATALER CORPORATION

发明人： Satoshi Matsueda ,  Akimasa Hirai ,  Kenichi Taki ,  Sho Hoshino

IPC分类号： B01J23/89 ,  B01J23/42 ,  B01J23/46 ,  B01D53/94 ,  B01J23/58 ,  B01J23/652 ,  B01J35/00 ,  B01J23/44 ,  B01J23/00

CPC分类号： B01J23/8946 ,  B01D53/945 ,  B01D2251/2062 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/1026 ,  B01D2255/1028 ,  B01D2255/2022 ,  B01D2255/204 ,  B01D2255/2042 ,  B01D2255/2045 ,  B01D2255/2047 ,  B01D2255/207 ,  B01D2255/20738 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/405 ,  B01J23/002 ,  B01J23/005 ,  B01J23/42 ,  B01J23/44 ,  B01J23/464 ,  B01J23/58 ,  B01J23/6525 ,  B01J23/6527 ,  B01J23/8993 ,  B01J35/0006 ,  B01J37/031 ,  B01J37/08 ,  B01J2523/00 ,  Y02T10/22 ,  B01J2523/22 ,  B01J2523/31 ,  B01J2523/827 ,  B01J2523/842 ,  B01J2523/824 ,  B01J2523/23 ,  B01J2523/24 ,  B01J2523/25 ,  B01J2523/821 ,  B01J2523/57 ,  B01J2523/56 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/828 ,  B01J2523/47

摘要： An exhaust gas-purifying catalyst includes a support and a catalytic metal supported thereby. The support includes a composite oxide represented by AO.xB2-αCαO3, wherein A represents at least one of an element having a valence of 1 and an element having a valence of 2, B represents an element having a valence of 3, C represents one or more elements selected from iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, x represents a numerical value of 1 to 6, and a represents a numerical value greater than 0 and less than 2. The catalytic metal includes one or more precious metals selected from rhodium, palladium, and platinum.

公开(公告)号：US11084022B2

公开(公告)日：2021-08-10

申请号：US16061493

申请日：2016-12-26

申请人： CATALER CORPORATION ,  SANTOKU CORPORATION

发明人： Kyosuke Murakami ,  Keiichi Narita ,  Satoshi Matsueda ,  Michio Tanaka ,  Tadatoshi Murota ,  Shigeru Ono ,  Tomonori Tahara

IPC分类号： B01J23/44 ,  B01D53/94 ,  B01J23/10 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  F01N3/10 ,  F01N3/28

摘要： A Pd-supporting Zr-based composite oxide wherein by having a Zr-containing composite oxide support and Pd supported thereon and by showing, upon XAFS (X-ray absorption fine structure) analysis, a maximum peak in a Pd bond distance range of 2.500-3.500 Å, the maximum peak being located in a position of 3.050-3.110 Å.

公开(公告)号：US10828602B2

公开(公告)日：2020-11-10

申请号：US15771902

申请日：2016-10-24

申请人： CATALER CORPORATION

发明人： Yu Sakurada ,  Satoshi Matsueda ,  Sho Hoshino ,  Ryota Nakashima

IPC分类号： B01D53/94 ,  B01J37/04 ,  B01J23/63 ,  B01J35/00 ,  B01J23/10 ,  B01J23/42 ,  B01J23/46 ,  B01J23/44 ,  B01J21/04 ,  B01J21/06 ,  B01J21/08

摘要： A novel exhaust gas purifying catalyst, method for producing same, and an exhaust gas purification device using same, which are capable of maintaining catalytic activity of a precious metal at a higher level than compared with conventional exhaust gas purifying catalysts. An exhaust gas purifying catalyst having a first carrier particle, a second carrier particle, and a precious metal catalyst particle carried on the first and second carrier particles, wherein: the first carrier particle contains a rare-earth oxide other than ceria and at least one metal oxide selected from the group consisting of silica, alumina, ceria, zirconia, and titania; the second carrier particle contains a rare-earth oxide other than ceria; and the contained amount of the rare-earth oxide in the second carrier particle is higher than the contained amount of the rare-earth oxide in the first carrier particle.