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    OXIDATION CATALYST FOR INTERNAL COMBUSTION ENGINE EXHAUST GAS TREATMENT
    14.
    发明公开
    OXIDATION CATALYST FOR INTERNAL COMBUSTION ENGINE EXHAUST GAS TREATMENT 审中-公开
    氧化K OR OR ORS ORS ORS ORS ORS ORS ORS ORS ORS ORS ORS ORS ORS ORS ORS

    公开(公告)号：EP2962744A1

    公开(公告)日：2016-01-06

    申请号：EP15181410.0

    申请日：2012-10-05

    Applicant: Johnson Matthey Public Limited Company ,  Johnson Matthey Japan Godo Kaisha

    Inventor： BLAKEMAN, Philip ,  BROWN, Gavin Michael ,  CHATTERJEE, Sougato ,  CHIFFEY, Andrew Francis ,  GAST, Jane ,  OYAMADA, Hanako ,  PHILLIPS, Paul Richard ,  RAJARAM, Raj ,  SUMIYA, Satoshi ,  WANG, Lifeng ,  WALKER, Andrew

    IPC: B01D53/94 ,  B01J23/42 ,  B01J23/44 ,  B01J29/068 ,  B01J37/02

    Abstract: The invention provides an oxidation catalyst for the oxidative treatment of a hydrocarbon (HC) and carbon monoxide (CO) in an exhaust gas. The oxidation catalyst comprises a supporting substrate and a plurality of catalyst layers supported on the supporting substrate, wherein the plurality of catalyst layers comprise a washcoat material, an active metal and a hydrocarbon adsorbent, and wherein one catalyst layer lies on the catalyst surface layer side and one or more other catalyst layers lie on the side lower than the said one catalyst layer; and wherein: (a) the amount of hydrocarbon adsorbent in the said one catalyst layer is greater than the amount of hydrocarbon adsorbent in the said one or more other catalyst layers, and the concentration of active metal in the said one catalyst layer is the same as or less than the concentration of active metal in the said one or more other catalyst layers; or (b) the amount of hydrocarbon adsorbent in the said one catalyst layer is the same as the amount of hydrocarbon adsorbent in the said one or more other catalyst layers, and the concentration of active metal in the said one catalyst layer is less than the concentration of active metal in the said one or more other catalyst layers.

    Abstract translation: 本发明提供一种用于氧化处理废气中的烃（HC）和一氧化碳（CO）的氧化催化剂。 氧化催化剂包括支撑基材和支撑在支撑基材上的多个催化剂层，其中多个催化剂层包括修补基面涂料，活性金属和烃吸附剂，并且其中一个催化剂层位于催化剂表面层侧 并且一个或多个其它催化剂层位于比所述一个催化剂层低的一侧; 并且其中：（a）所述一个催化剂层中的烃吸附剂的量大于所述一个或多个其它催化剂层中的烃吸附剂的量，并且所述一个催化剂层中的活性金属的浓度相同 等于或小于所述一个或多个其它催化剂层中的活性金属的浓度; 或（b）所述一个催化剂层中的烃吸附剂的量与所述一个或多个其它催化剂层中的烃吸附剂的量相同，并且所述一个催化剂层中的活性金属的浓度小于 所述一种或多种其它催化剂层中的活性金属的浓度。

    EXHAUST SYSTEM
    16.
    发明公开
    EXHAUST SYSTEM 审中-公开
    排气系统

    公开(公告)号：EP2917522A1

    公开(公告)日：2015-09-16

    申请号：EP13795284.2

    申请日：2013-11-07

    Applicant: Johnson Matthey Public Limited Company

    Inventor： CHIFFEY, Andrew Francis ,  PRENDERGAST, Cathal Francis

    IPC: F01N3/10 ,  F01N3/20 ,  F01N3/035 ,  B01D53/94

    CPC classification number: B01D53/94 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/50 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/40 ,  F01N2510/068 ,  F01N2510/0682 ,  Y02T10/24

    Abstract: An exhaust system, and a catalyzed substrate, is disclosed. The system comprises a catalyzed substrate, a counterflow urea injector downstream of the catalyzed substrate, and a first selective catalytic reduction (SCR) catalyst downstream of the counterflow injector. The catalyzed substrate has an inlet end, an outlet end, an axial length extending from the inlet to the outlet, an inlet zone extending from the inlet, and an outlet zone extending from the outlet. The inlet zone comprises an oxidation catalyst and the outlet zone comprises a catalyst selected from the group consisting of a urea hydrolysis catalyst and a second SCR catalyst. The counterflow urea injector directs urea toward the outlet zone of the catalyzed substrate so that at least a portion of the urea contacts the outlet zone prior to contacting the first SCR catalyst.

    Abstract translation: 公开了排气系统和催化基底。 该系统包括催化底物，催化底物下游的逆流尿素喷射器，以及逆流喷射器下游的第一选择性催化还原（SCR）催化剂。 催化的基材具有入口端，出口端，从入口延伸到出口的轴向长度，从入口延伸的入口区域和从出口延伸的出口区域。 入口区包含氧化催化剂，出口区包含选自尿素水解催化剂和第二SCR催化剂的催化剂。 逆流式尿素喷射器引导尿素朝向催化基底的出口区，使得至少一部分尿素在接触第一SCR催化剂之前接触出口区。

    OXIDATION CATALYST FOR A LEAN BURN INTERNAL COMBUSTION ENGINE
    18.
    发明公开
    OXIDATION CATALYST FOR A LEAN BURN INTERNAL COMBUSTION ENGINE 审中-公开
    氧化铝制动器FÜREINEN MAGERVERBRENNUNGSMOTOR

    公开(公告)号：EP2654929A2

    公开(公告)日：2013-10-30

    申请号：EP11805159.8

    申请日：2011-12-21

    Applicant: Johnson Matthey Public Limited Company

    Inventor： BERGEAL, David ,  CHIFFEY, Andrew Francis ,  FEUERSTEIN, Marie ,  PHILLIPS, Paul Richard ,  STREHLAU, Wolfgang ,  SWALLOW, Daniel ,  WYLIE, James

    IPC: B01D53/94 ,  B01D53/96 ,  B01J23/63 ,  B01J23/96 ,  F01N3/18 ,  B01J23/62 ,  B01J23/656 ,  B01J23/89

    Abstract: An apparatus is disclosed. The apparatus comprises a lean-burn internal combustion engine, engine management means and an exhaust system for treating exhaust gas of the engine. The exhaust system comprises a first oxidation catalyst disposed on a first honeycomb monolith substrate. The first oxidation catalyst comprises platinum supported on a first metal oxide support comprising at least one reducible oxide, and is substantially free of alkali metals and alkaline earth metals. The engine management means is arranged, when in use, intermittently to modulate the lambda composition of the exhaust gas entering the first oxidation catalyst to a rich lambda composition.

    Abstract translation: 公开了一种装置。 该装置包括稀燃内燃机，发动机管理装置和用于处理发动机废气的排气系统。 排气系统包括设置在第一蜂窝单体基板上的第一氧化催化剂。 第一氧化催化剂包括负载在包含至少一种还原氧化物的第一金属氧化物载体上的铂，并且基本上不含碱金属和碱土金属。 发动机管理装置在使用时被间歇地布置成将进入第一氧化催化剂的废气的λ组成调节为富Lambda组成。

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