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1. 发明专利

JP2004154766A Ceramic catalyst body 有权
公开(公告)号：JP2004154766A
公开(公告)日：2004-06-03
申请号：JP2003304188
申请日：2003-08-28
申请人： Denso Corp , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： SUZAWA TAKUMI , UENO HIDEAKI , SUZUKI HIROMASA , NAKANISHI TOMOHIKO
IPC分类号： B01D53/94 , B01J23/10 , B01J23/63 , B01J35/04 , B01J37/02
CPC分类号： B01D53/945 , B01J23/10 , B01J23/63 , B01J35/04 , B01J37/024 , B01J37/0244 , Y02T10/22
摘要： PROBLEM TO BE SOLVED: To provide a ceramic catalyst body with low pressure loss and low heat capacity which can satisfy both of promoter capacity and heat resistance by the use of a small quantity of the catalyst body. SOLUTION: The ceramic catalyst body comprises a precious metal as a main catalyst component and a promoter component having a plurality of oxygen-absorbing abilities, which are carried in a ceramic carrier capable of directly carrying the catalyst components by replacing part of elements constituents of the substrate ceramic such as cordierite or the like. And the promoter layer is composed of the outermost layer made from a material of the highest heat-resistance and the innermost layer made from a material with high oxygen-absorbing ability so as to improve the heat resistance without increasing the supporting amount. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004066069A Ceramic catalyst 有权
公开(公告)号：JP2004066069A
公开(公告)日：2004-03-04
申请号：JP2002227009
申请日：2002-08-05
申请人： Denso Corp , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： NAKANISHI TOMOHIKO , HASE TOMOMI , UENO HIDEAKI , ARAYOSHI TAKATOSHI
IPC分类号： F01N3/10 , B01D53/86 , B01D53/94 , B01J23/63 , B01J32/00 , B01J35/04 , B01J35/10 , B01J37/02 , C04B41/85 , F01N3/28
CPC分类号： B01D53/945 , B01J23/63 , B01J35/04 , B01J37/0203 , B01J37/0211 , B01J37/0217 , Y02T10/22 , Y10S502/524 , Y10S502/525
摘要： PROBLEM TO BE SOLVED: To realize a small pressure drop and high cleaning performance in a constitution where a main catalyst component and a promoter component are supported on a ceramic carrier on which catalyst components can directly be supported. SOLUTION: A catalytic noble metal as a main catalyst component and an oxygen occluding component as a promoter component are supported on the surface of a honeycomb ceramic carrier including the inner surfaces of pores. Since the promoter component supported in large quantities is put in the pores, the quantity of the promoter component supported on the surfaces of cell walls is reduced and an increase of pressure drop can be suppressed. Since the main catalyst component and the promoter component come adjacent to each other, the catalytic performance is enhanced. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2003334457A Catalyst body and its manufacturing method 有权
标题翻译：催化体及其制造方法
公开(公告)号：JP2003334457A
公开(公告)日：2003-11-25
申请号：JP2002144920
申请日：2002-05-20
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： KONDO TOSHIHARU , TANAKA MASAICHI , UENO HIDEAKI , SUZUKI HIROMASA
IPC分类号： B01D53/86 , B01D53/88 , B01D53/94 , B01J23/652 , B01J35/04 , B01J37/02 , F01N3/035 , F01N3/28
CPC分类号： B01D53/885 , B01D53/9454 , B01J23/6527 , B01J35/008 , B01J35/04 , B01J37/0203 , B01J37/0207 , B01J37/0219 , B01J37/0234 , F01N3/035 , F01N3/2828 , Y02T10/22
摘要： PROBLEM TO BE SOLVED: To realize a catalyst body which can perform an efficient catalytic reaction with a required minimum amount of a catalyst and exhibit high catalytic performance at a low cost. SOLUTION: A catalytic component can be directly carried on the surface of substrate ceramic, and the catalytic component is directly carried by a ceramic carrier 11 having a honeycomb structure having a plurality of cells 2 partitioned by a partition wall 3. The catalytic component of ≥90% is carried in the outermost surface layer part 4 of the partition wall 3, for example, at a distance of ≤30 μm from the uppermost surface, which reduces the catalytic component that does not contribute a purifying reaction to lower the catalyst cost. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：实现能够以所需的最少量的催化剂进行有效的催化反应并以低成本表现出高催化性能的催化剂体。解决方案：催化组分可以直接承载在基体陶瓷的表面上，催化组分直接由具有蜂窝结构的陶瓷载体11承载，该蜂窝结构具有由分隔壁3隔开的多个单元2。催化组分 ≥90％的成分在分隔壁3的最表面层部4中承载，例如与最上表面相距≤30μm的距离，这降低了不会产生纯化反应的催化成分，从而降低催化剂成本。版权所有（C）2004，JPO

4. 发明专利

JP2012020276A Catalyst for purifying exhaust gas 审中-公开
标题翻译：用于净化排气的催化剂
公开(公告)号：JP2012020276A
公开(公告)日：2012-02-02
申请号：JP2010290452
申请日：2010-12-27
申请人： Cataler Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社キャタラー
发明人： SUNADA TOMOAKI , UENO HIDEAKI , AOKI HISAO , YOSHIDA TAKESHI , NAKAHARA MASAHIRO , KAWAI MASAAKI , SAKAGAMI SHINGO
IPC分类号： B01J37/02 , B01D53/94 , B01J23/63 , B01J35/04
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： PROBLEM TO BE SOLVED: To provide a catalyst for purifying exhaust gas which can efficiently exhibit purification properties of a noble metal catalyst and has a high purification function of the catalyst at a low temperature.SOLUTION: The catalyst for purifying exhaust gas comprises a substrate 1 forming a gas channel in which exhaust gas flows and a catalyst layer 10 formed on the substrate 1. The catalyst layer 10 is composed of a lower catalyst layer 2 formed on the surface of the substrate 1, a front stage upper catalyst layer 3 covering the surface of the lower catalyst layer 2 in the upstream side in the gas flow direction, and a rear stage upper catalyst layer 4 covering the surface of the lower catalyst layer 2 downstream of the front stage upper catalyst layer 3 in the gas flow direction. The lower catalyst layer 2 bears at least one of Pd and Pt. The front stage upper catalyst layer 3 bears Pd. The rear stage lower catalyst layer 4 bears Rh. The Pd bearing density in the front stage upper layer 3 is 4.5 to 12 mass%.
摘要翻译：要解决的问题：提供一种能够有效地显示贵金属催化剂的净化性能并且在低温下具有高催化剂净化功能的净化废气的催化剂。解决方案：用于净化废气的催化剂包括形成废气流动的气体通道的基板1和形成在基板1上的催化剂层10.催化剂层10由形成在基板1上的下部催化剂层2 基板1的表面，覆盖气体流动方向上游侧的下部催化剂层2的表面的前段上部催化剂层3和覆盖下部催化剂层2的表面的后段上部催化剂层4 的前段上催化剂层3。下部催化剂层2具有Pd和Pt中的至少一种。前段上催化剂层3载有Pd。后段下层催化剂层4承载Rh。前段上层3的Pd负载密度为4.5〜12质量％。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010099632A Apparatus for purifying exhaust gas 审中-公开
标题翻译：用于净化排气的装置
公开(公告)号：JP2010099632A
公开(公告)日：2010-05-06
申请号：JP2008275436
申请日：2008-10-27
申请人： Nippon Steel Materials Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 新日鉄マテリアルズ株式会社
发明人： UENO HIDEAKI , TAKEUCHI MASAHIKO , KASUYA MASAYUKI , KONYA SHOGO , YAMAUCHI TAKESHI
IPC分类号： B01D53/86 , B01J23/63 , B01J27/224 , F01N3/10
摘要： PROBLEM TO BE SOLVED: To enhance warm-up characteristics in a tandem type apparatus for purifying an exhaust gas in which the carrier base material of a pre-step catalyst is composed of a metal base material. SOLUTION: The tandem type apparatus for purifying exhaust gas comprises a preliminary catalyst 2, and a subsequent catalyst 3 disposed at the downstream of the exhaust gas with a distance from the preliminary catalyst 2. The carrier in the preliminary catalyst 2 is composed of a metal. The preliminary catalyst 2 has a low radiation part in at least one part of a catalyst coat layer, which has a surface radiation rate which is not greater than 0.3 and is lower than a surface radiation rate of the catalyst coat layer in the subsequent catalyst 3. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：为了提高前级催化剂的载体基材由金属基材构成的排气净化用串联型装置的预热特性。解决方案：用于净化排气的串联式设备包括预催化剂2和设置在与预催化剂2相距一定距离的废气下游的后续催化剂3.预催化剂2中的载体构成的金属。预催化剂2在催化剂涂层的至少一部分中具有低辐射部分，其表面辐射率不大于0.3且低于后续催化剂3中催化剂涂层的表面辐射速率。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2005028364A Catalyst for cleaning of exhaust gas 有权
标题翻译：催化剂用于清除排气
公开(公告)号：JP2005028364A
公开(公告)日：2005-02-03
申请号：JP2004303502
申请日：2004-10-18
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YOSHIDA TAKESHI , UENO HIDEAKI , IKEDA YASUO , SENDA KOJI
IPC分类号： F01N3/08 , B01D53/94 , B01J23/58 , B01J33/00 , B01J37/02 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To control a lowering of an NO X absorbing capacity and improve a durability, in using an alkali metal as an NO X occluding element. SOLUTION: The subject catalyst for cleaning of an exhaust gas is composed of a base material, a catalyst supporting layer coated thereon, and a noble metal and an alkali metal supported on this layer, wherein a zirconia layer is formed between the base material and the catalyst supporting layer. As zirconia is hard to react with the alkali metal and the alkali metal is hard to come close to it, the alkali metal is controlled in moving to the base material made from a cordierite. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了控制NOS / SB> X 吸收能力的降低，并且在使用碱金属作为阻塞性阻塞元件时提高耐久性。解决方案：用于清洁废气的主体催化剂由基材，涂覆有催化剂载体层和负载在该层上的贵金属和碱金属构成，其中在基体之间形成氧化锆层材料和催化剂支撑层。由于氧化锆难以与碱金属反应，碱金属难以接近，所以碱金属被控制移动到由堇青石制成的基材上。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004000838A Catalyst for cleaning exhaust gas 审中-公开
标题翻译：催化剂用于清洁排气
公开(公告)号：JP2004000838A
公开(公告)日：2004-01-08
申请号：JP2002159733
申请日：2002-05-31
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： UENO HIDEAKI , CHIBA AKIYA
IPC分类号： B01D53/94 , B01J23/58 , B01J35/04
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for cleaning exhaust gas which efficiently purifies not only olefin hydrocarbons but also saturated hydrocarbons represented by methane. SOLUTION: A coat layer comprises an upstream coat layer 2 which contains Al 2 O 3 having pore volume of ≤0.6cc/g, is formed on the upstream part of an exhaust gas stream and carries Pd, and a downstream coat layer 3 which contains Al 2 O 3 having pore volume of ≥0.8cc/g, is formed on the downstream part of the exhaust gas stream and carries Pd. The upstream coat layer 2 has the high thermal conductivity and excellent temperature rising property by virtue of the dense structure thereof and, therefore, the hydrocarbons other than methane can be cleaned even in the low temperature zone. Since the downstream coat layer 3 has the excellent gas diffusibility by virtue of the large pore volume, the hydrocarbons having the large adsorptivity to Pd quickly diffuses, the contact probability between Pd and methane is enhanced and methane can be cleaned efficiently. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于净化废气的催化剂，其不仅可以有效地纯化烯烃，而且可以纯化由甲烷代表的饱和烃。解决方案：涂层包含上游涂层2，上游涂层2含有孔体积≤0.6cc/ g的Al SB SB 3，其形成在上游部分的废气流并携带Pd，并且在下游形成具有孔体积≥0.8cc/ g的含有SiO 2的下游涂层3 3 3 一部分废气流并携带Pd。上游涂层2由于其致密的结构而具有高的导热性和优异的升温性，因此即使在低温区也能够清洁甲烷以外的烃。由于下游涂层3由于孔体积大而具有优异的气体扩散性，所以对Pd吸附性好的烃快速扩散，Pd和甲烷之间的接触概率提高，甲烷能够有效地清洗。版权所有（C）2004，JPO

8. 发明专利

JPH0953440A NITROGEN OXIDE PURIFIER OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0953440A
公开(公告)日：1997-02-25
申请号：JP22722795
申请日：1995-08-10
申请人： DENSO CORP , TOYOTA MOTOR CORP
发明人： SUGURO HAJIME , NAKAMURA KANEHITO , OHATA KOICHI , KUBOSHIMA TSUKASA , UENO HIDEAKI
IPC分类号： F01N3/20 , F01N3/24 , F02D41/36
摘要： PROBLEM TO BE SOLVED: To provide a nitrogen oxide purifier of an internal combustion engine that is large in a purifying rate but small in fluctuation at the lapse of time. SOLUTION: In the first embodiment of this invention, the setup of plural catalyst units 11 and 12 is alternately changed, and a temperature-up cycle is executed to these catalyst units 11 and 12 at the upstream side. A control means 30 operates a temperature adjusting means, to execute repeatedly both temperature up and down cycles these catalyst units 11 and 12.

9. 发明专利

DE10322538A1 未知
公开(公告)号：DE10322538A1
公开(公告)日：2003-12-04
申请号：DE10322538
申请日：2003-05-19
申请人： DENSO CORP
发明人： KONDO TOSIHARU , TANAKA MASAKAZU , UENO HIDEAKI , SUZUKI HIROMASA
IPC分类号： B01D53/86 , B01D53/88 , B01D53/94 , B01J23/652 , B01J35/04 , B01J37/02 , F01N3/035 , F01N3/28 , B01J35/10

10. 发明专利

DE10348176A1 未知
公开(公告)号：DE10348176A1
公开(公告)日：2004-05-27
申请号：DE10348176
申请日：2003-10-16
申请人： DENSO CORP
发明人： SUZAWA TAKUMI , NAKANISHI TOMOHIKO , UENO HIDEAKI , SUZUKI HIROMASA
IPC分类号： B01D53/94 , B01J23/10 , B01J23/63 , B01J35/04 , B01J37/02 , B01J21/00 , B01J35/10
摘要： To provide a ceramic catalyst having both promoter activity and heat resistance at a small amount of promoter component and also having a low pressure drop and a low heat capacity, a noble metal as a catalyst component and at least two layers of promoter components having oxygen storage capacities are supported on a ceramic carrier which is prepared by replacing a part of component element of the ceramic material such as cordierite to enable to support a catalyst component directly thereon. The outermost layer consists of a promoter component having the highest heat resistance, and the innermost layer consists of a promoter component having the highest oxygen storage capacity, which improve heat resistance without increasing an amount of supported promoter component.

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