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公开(公告)号：EP3275545A4
公开(公告)日：2018-03-21
申请号：EP16772525
申请日：2016-03-24
Applicant: TOYOTA MOTOR CO LTD , CATALER CORP
Inventor： SUZUKI HIROMASA , MIURA MASAHIDE , SAITO YOSHINORI , KATOH SATORU , TANABE TOSHITAKA , HIRAO TETSUHIO , OHASHI TATSUYA , NAITO HIROAKI , ORI HIROTAKA , TAKEUCHI MICHIHIKO , NARITA KEIICHI
CPC classification number: B01D53/94 , B01J23/63 , B01J35/0006 , B01J35/023 , B01J35/026 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/08 , F01N3/28
Abstract: An object of the present invention is to provide an exhaust gas purification catalyst which can exhibit high durability and warm-up performance. The present invention relates to an exhaust gas purification catalyst comprising a substrate and a catalyst coating layer formed on the substrate, wherein the catalyst coating layer comprises catalyst particles, the catalyst coating layer having an upstream region extending by 40 to 60% of the entire length of the substrate from an upstream end of the catalyst in the direction of an exhaust gas flow and a downstream region corresponding to the remainder portion of the catalyst coating layer, the composition of the catalyst particle of the upstream region being different from that of the downstream region. The upstream region in the direction of an exhaust gas flow has a structure where a void is included in a large number, and furthermore high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain percentage or more of the whole volume of voids. Thus, the exhaust gas purification catalyst exhibits enhanced purification performance.
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公开(公告)号：EP3275543A4
公开(公告)日：2018-03-21
申请号：EP16772519
申请日：2016-03-24
Applicant: TOYOTA MOTOR CO LTD , CATALER CORP
Inventor： SUZUKI HIROMASA , MIURA MASAHIDE , SAITO YOSHINORI , KATOH SATORU , TANABE TOSHITAKA , HIRAO TETSUHIRO , OHASHI TATSUYA , NAITO HIROAKI , ORI HIROTAKA , TAKEUCHI MICHIHIKO , NARITA KEIICHI
CPC classification number: B01D53/94 , B01J23/63 , B01J35/023 , B01J35/026 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/0244 , B01J37/08 , F01N3/28
Abstract: The problem of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance under a high Ga condition while having a resistance to stress such as high-temperature and poisonous substances. The present invention relates to an exhaust gas purification catalyst comprising two or more catalyst coating layers on a substrate, wherein a lower catalyst coating layer that is present lower with respect to an uppermost catalyst coating layer has a structure where a large number of voids are included and high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain proportion or more of the whole volume of voids, thereby to improve gas diffusivity in the lower catalyst coating layer.
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公开(公告)号：EP1533031A4
公开(公告)日：2006-11-02
申请号：EP03741164
申请日：2003-07-03
Applicant: DAIHATSU MOTOR CO LTD , CATALER CORP
Inventor： TANAKA H , TAN I , UENISHI MARI , KAJITA N , TANIGUCHI M , SATO YASUNORI , NARITA KEIICHI , SATO NOBORU
IPC: B01D53/94 , B01J21/04 , B01J21/06 , B01J23/00 , B01J23/63 , B01J23/656 , B01J23/68 , B01J23/89 , B01J35/00 , B01J37/02 , B01J37/03 , B01J37/08 , C01G55/00 , B01J23/58
CPC classification number: B01J21/066 , B01D53/945 , B01D2255/1025 , B01D2255/402 , B01J21/04 , B01J23/002 , B01J23/63 , B01J23/6562 , B01J23/688 , B01J23/894 , B01J23/8946 , B01J23/8986 , B01J35/002 , B01J37/0244 , B01J37/0248 , B01J37/033 , B01J37/08 , B01J2523/00 , C01G55/002 , C01P2002/34 , C01P2002/54 , C01P2006/13 , C01P2006/80 , Y02T10/22 , Y10S502/525 , B01J2523/3712 , B01J2523/48 , B01J2523/31 , B01J2523/3706 , B01J2523/72 , B01J2523/842 , B01J2523/25 , B01J2523/23 , B01J2523/3718 , B01J2523/3725 , B01J2523/36
Abstract: To provide an exhaust gas purifying catalyst which can maintain the catalytic activity at a high level over a long time and can achieve satisfactory emission control performance, an exhaust gas purifying catalyst is prepared so as to contain a noble metal, a perovskite-type composite oxide represented by the following general formula (3), and theta-alumina and/or alpha-alumina: AB1-mNmO3 wherein A represents at least one element selected from rare-earth elements and alkaline earth metals; B represents at least one element selected from Al and transition elements excluding rare-earth elements and noble metals; N represents a noble metal; and m represents an atomic ratio of N satisfying the following relation: 0
Abstract translation: 为了提供能够长时间保持高水平的催化活性并且可以实现令人满意的排放控制性能的废气净化催化剂，制备废气净化催化剂以包含贵金属，钙钛矿型复合氧化物 由以下通式（3）表示，θ-氧化铝和/或α-氧化铝：其中A表示选自稀土元素中的至少一种元素 元素和碱土金属; B表示选自Al和除了稀土元素和贵金属之外的过渡元素中的至少一种元素; N代表贵金属; m表示满足以下关系的N的原子比：0
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公开(公告)号：EP3275544A4
公开(公告)日：2018-03-21
申请号：EP16772523
申请日：2016-03-24
Applicant: TOYOTA MOTOR CO LTD , CATALER CORP
Inventor： SUZUKI HIROMASA , MIURA MASAHIDE , SAITO YOSHINORI , KATOH SATORU , TANABE TOSHITAKA , HIRAO TETSUHIRO , OHASHI TATSUYA , NAITO HIROAKI , ORI HIROTAKA , TAKEUCHI MICHIHIKO , NARITA KEIICHI
CPC classification number: B01D53/94 , B01J23/63 , B01J35/023 , B01J35/026 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/02 , B01J37/0219 , B01J37/0234 , B01J37/0244 , B01J37/08 , F01N3/28
Abstract: When the amount of coating is increased in a two-layer catalyst or the like containing two noble metals in respective different layers, gas diffusivity in the catalyst and use efficiency of a catalytic active site are reduced to thereby reduce purification performance. In view of this, an organic fiber having a predetermined shape is used as a pore-forming material in formation of an uppermost catalyst coating layer of a multi-layer catalyst, to thereby form an uppermost catalyst coating layer having a high-aspect-ratio pore excellent in connectivity and therefore excellent gas diffusivity.
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公开(公告)号：EP2476486A4
公开(公告)日：2014-03-19
申请号：EP10815426
申请日：2010-09-09
Applicant: CATALER CORP
Inventor： HOSHINO SHO , HIRAI AKIMASA , TAKI KENICHI , NARITA KEIICHI , MATSUEDA SATOSHI , HORI ASUKA , KUSAKA MASAHIRO
IPC: B01J23/58 , B01D53/94 , B01J23/00 , B01J23/63 , B01J27/053 , B01J35/00 , B01J35/02 , B01J35/04 , B01J37/00 , B01J37/03 , F01N3/10
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
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Patent Agency Ranking
公开(公告)号：EP2218501A4
公开(公告)日：2014-01-29
申请号：EP08842380
申请日：2008-10-17
Applicant: CATALER CORP , DAIHATSU MOTOR CO LTD
Inventor： MATSUEDA SATOSHI , KIMURA MAREO , YOSHIDA HIROTO , NARITA KEIICHI , TANAKA HIROHISA , UENISHI MARI , TANIGUCHI MASASHI
IPC: B01J23/745 , B01D53/94 , B01J23/75 , B01J23/78 , B01J23/889 , B01J23/89 , F01N3/10
CPC classification number: B01J23/78 , B01J23/002 , B01J23/005 , B01J23/8892 , B01J2523/00 , B01J2523/31 , B01J2523/72 , B01J2523/845 , B01J2523/842 , B01J2523/24 , B01J2523/847 , B01J2523/22
Abstract: An exhaust gas-purifying catalyst which offers high exhaust gas purification performance is achieved. The exhaust gas-purifying catalyst includes at least one of a first composite oxide represented by a formula A(Al 2-x B x )O 4 and a second composite oxide represented by a formula (Al 2-y C y )O 3 , wherein element A is a divalent transition metal other than platinum-group elements, each of elements B and C is a transition metal other than platinum-group elements, x satisfies 0
Abstract translation: 实现了具有高排气净化性能的排气净化催化剂。 废气净化催化剂包括由式A（Al 2-x B x）O 4表示的第一复合氧化物和由式（Al 2-y C y）O 3表示的第二复合氧化物中的至少一种， 其中元素A是除铂族元素以外的二价过渡金属，元素B和C中的每一个是除铂族元素以外的过渡金属，x满足0 < x < 2，并且y满足0 < y＆lt; 2。
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公开(公告)号：EP2039422A4
公开(公告)日：2011-06-22
申请号：EP07767407
申请日：2007-06-22
Applicant: CATALER CORP , TOYOTA MOTOR CO LTD , DAIHATSU MOTOR CO LTD
Inventor： KIMURA MAREO , NARITA KEIICHI , HIRAI AKIMASA , CHIBA AKIYA , MIYOSHI NAOTO , ISHIBASHI KAZUNOBU , KANAZAWA TAKAAKI , YOSHIDA TAKERU , TANAKA HIROHISA , UENISHI MARI , TAN ISAO , TANIGUCHI; MASASHI
CPC classification number: C01G25/02 , B01D53/02 , B01D2253/112 , B01D2255/407 , B01D2256/12 , B01D2259/4525 , B01J23/002 , B01J23/63 , B01J2523/00 , C01P2002/72 , C01P2002/85 , C01P2004/82 , C01P2006/12 , Y10S502/526 , B01J2523/25 , B01J2523/3712 , B01J2523/48 , B01J2523/36
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公开(公告)号：EP3081298A4
公开(公告)日：2016-12-21
申请号：EP14870103
申请日：2014-12-09
Applicant: CATALER CORP
Inventor： HARADA TAKAHIRO , NARITA KEIICHI , TANAKA MICHIO , KUNIOKU HIRONOBU , NAKASHIMA RYOTA
CPC classification number: B01J23/63 , B01D53/945 , B01D2255/10 , B01D2255/9022 , B01D2255/9025 , B01D2255/9032 , B01D2255/908 , B01D2255/9202 , B01D2255/9207 , B01J21/04 , B01J21/066 , B01J35/04 , B01J35/1014 , B01J35/1019 , B01J37/0244 , F01N3/101 , F01N3/2803 , F01N2510/0682 , F01N2510/0684 , Y02T10/22
Abstract: Provided is an exhaust gas purification catalyst with excellent durability against exhaust gas including a poisoning substance. The exhaust gas purification catalyst 7 includes a porous substrate 10, a catalyst coating layer 30 formed on the porous substrate, and a dummy coating layer 50 formed on the outermost surface of the catalyst coating layer. The catalyst coating layer 30 has a carrier and a noble metal catalyst supported on the carrier. The dummy coating layer 50 includes a carrier having at least alumina and does not include a noble metal catalyst. The dummy coating layer 50 is formed to have a length which, from the end on the exhaust gas inlet side, is 10% to 70% of the entire length of the catalyst coating layer 30 along the exhaust gas flow direction.
Abstract translation: 提供了对包含中毒物质的排气具有优异耐久性的废气净化催化剂。 废气净化催化剂7包括多孔基材10，形成在多孔基材上的催化剂涂层30和形成在催化剂涂层的最外表面上的虚拟涂层50。 催化剂涂层30具有负载在载体上的载体和贵金属催化剂。 虚拟涂层50包括至少具有氧化铝并且不包括贵金属催化剂的载体。 假涂层50形成为从排气入口侧的端部沿着排气流动方向为催化剂涂层30的全长的10％〜70％的长度。
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公开(公告)号：EP2130582A4
公开(公告)日：2011-09-14
申请号：EP08738799
申请日：2008-03-25
Applicant: CATALER CORP
Inventor： HORI ASUKA , HIRAI AKIMASA , NARITA KEIICHI
CPC classification number: B01J23/63 , B01D53/9413 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/2065 , B01D2255/20715 , B01D2255/2092 , B01D2255/407 , B01D2255/9022 , B01D2258/014 , B01J23/002 , B01J35/04 , B01J37/0234 , B01J37/0244 , B01J2523/00 , F01N3/2828 , F01N2510/06 , F01N2510/0684 , B01J2523/25 , B01J2523/3706 , B01J2523/3712 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/822 , B01J2523/824 , B01J2523/828 , B01J2523/36
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公开(公告)号：EP1894624A4
公开(公告)日：2009-04-22
申请号：EP06756926
申请日：2006-06-02
Applicant: CATALER CORP , DAIHATSU MOTOR CO LTD
Inventor： TANAKA HIROHISA , TAN ISAO , UENISHI MARI , TANIGUCHI MASASHI , NAITO KAZUYA , KIMURA MAREO , NARITA KEIICHI , SUZUKI HIROMASA , MATSUEDA SATOSHI , ISHII YOSHINORI
CPC classification number: B01J23/002 , B01D2255/402 , B01J23/63 , B01J35/1009 , B01J35/1014 , B01J37/033 , B01J2523/00 , F01N2510/06 , B01J2523/25 , B01J2523/3712 , B01J2523/3718 , B01J2523/828 , B01J2523/23 , B01J2523/36 , B01J2523/48 , B01J2523/24
Abstract: Catalyst compositions containing novel perovskite-type double oxides permitting reversible entrance and exit of noble metals, namely, catalyst compositions containing perovskite-type double oxides represented by the general formula (1): AxA’wByB’(1-y-z)NzO3±σ wherein A is at least one element selected from among alkaline earth metals; A’ is at least one element selected from among rare earth elements; B is a tetravalent rare earth element; B’ is at least one element selected from among transition elements (except tetravalent rare earth elements, Rh, Pd and Pt); N is at least one element selected from among Rh, Pd and Pt; x and w are atomic ratios satisfying the relationships: 0.8
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