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    • 6. 发明专利
    • Apparatus for cleaning exhaust gas
    • 清洁排气的装置
    • JP2011104498A
    • 2011-06-02
    • JP2009261057
    • 2009-11-16
    • Toyota Industries Corp株式会社豊田自動織機
    • SAGA SHOTASATAKE YASUSHIHAYASHI HIDETAKASHIMO TOSHIHISA
    • B01D53/94B01J23/66F01N3/08F01N3/10F01N3/24F01N3/28
    • PROBLEM TO BE SOLVED: To provide an apparatus for cleaning exhaust gas exhibiting excellent activity at a low temperature and capable of suppressing the by-production of N 2 O. SOLUTION: A diesel engine 1 includes an exhaust pipe 2 for the exhaust gas generated thereby to flow therethrough. The exhaust pipe 2 includes a catalyst 3 active at a high temperature disposed therein and a catalyst 4 active at a low temperature disposed downstream of the catalyst 3. The catalyst 3 active at a high temperature is constituted of Ag supported by a support comprised of Al 2 O 3 . The catalyst 4 active at a low temperature is constituted of Pt supported by a support comprised of a mixture of Al 2 O 3 and TiO 2 . In addition to Al 2 O 3 and TiO 2 , only unavoidable impurities are contained in the support of the catalyst 4 active at a low temperature. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种在低温下表现出优异的活性并能够抑制副产物的废气的清洗装置。 解决方案:柴油发动机1包括用于由此产生的废气流过其的排气管2。 排气管2包括设置在其中的高温活性物质的催化剂3和位于催化剂3的下游的低温下活性的催化剂4.在高温下活性的催化剂3由Ag构成, 2 0 3 。 在低温下活性的催化剂4由由包含Al 2 SB 3和SB SB 2的混合物的载体负载的Pt构成。 除了在低温下活性的催化剂4的载体中,仅含有不可避免的杂质,但是除了<! - SIPO - > SB <3>和 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Catalyst precursor, catalyst material, and method of preparing catalyst
    • 催化剂前体,催化剂材料和制备催化剂的方法
    • JP2009268960A
    • 2009-11-19
    • JP2008120817
    • 2008-05-06
    • Tokyo Institute Of TechnologyToyota Industries Corp国立大学法人東京工業大学株式会社豊田自動織機
    • SAGA SHOTASHIMO TOSHIHISAMURAZAKI TAKANORIHARA YUKIKAZUNAKAJIMA KIYOTAKA
    • B01J23/755B01J23/42B01J23/72B01J23/745
    • B01J23/42B01J21/18B01J23/72B01J23/745B01J23/755B01J31/08B01J31/10B01J35/006B01J37/084B01J37/18
    • PROBLEM TO BE SOLVED: To provide a novel catalyst precursor prepared by fixing a metal species to a specific solid acid, a catalyst material derived from the catalyst precursor, and method of preparing the catalyst. SOLUTION: The catalyst precursor includes amorphous carbon to which a metal salt of an acidic group has been introduced. The precursor is synthesized by mixing the amorphous carbon to which an acidic group has been introduced with an aqueous solution comprising a metal ion and exchanging the ions. The catalyst material is prepared by reducing the catalyst precursor. The catalyst material includes a micro-support comprising graphene sheets constituting the amorphous carbon and a catalyst metal produced by reducing the metal ion and being supported by the micro-support. The catalyst material has a catalytic function different from an acid catalyst function owned by a solid acid. The growth of the catalyst metal particles in the catalyst material is suppressed because the metal ion supported by the micro-support (graphene sheets) and fixed to the carbon solid acid has a bond with the micro-support. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供通过将金属物质固定到特定固体酸,由催化剂前体衍生的催化剂材料和制备催化剂的方法制备的新型催化剂前体。 解决方案:催化剂前体包括已经引入酸性基团的金属盐的无定形碳。 通过将已经引入了酸性基团的无定形碳与包含金属离子的水溶液混合并交换离子来合成前体。 通过还原催化剂前体制备催化剂材料。 催化剂材料包括包含构成无定形碳的石墨烯片的微载体和通过还原金属离子并被微载体支持而制备的催化剂金属。 催化剂材料具有与固体酸所具有的酸催化剂功能不同的催化功能。 催化剂材料中的催化剂金属颗粒的生长被抑制,因为由微载体(石墨烯片)负载并固定到碳固体酸上的金属离子与微载体具有键合。 版权所有(C)2010,JPO&INPIT