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    CATALYST HAVING SCR-ACTIVE COATING
    53.
    发明申请
    CATALYST HAVING SCR-ACTIVE COATING 审中-公开

    公开(公告)号：US20190105650A1

    公开(公告)日：2019-04-11

    申请号：US16086720

    申请日：2017-04-13

    申请人： UMICORE AG & CO. KG

    发明人： Frank WELSCH ,  Stephan ECKHOFF ,  Michael SEYLER ,  Anke SCHULER

    IPC分类号： B01J35/00 ,  B01J29/76 ,  B01J29/80 ,  B01J37/02 ,  B01D53/94

    摘要： The invention relates to a catalyst, which comprises a catalyst substrate of the length L and two SCR-catalytically active materials A and B, wherein the SCR-catalytically active material A contains a zeolite of the levyne structure type, which contains ion-exchanged iron and/or copper, and the SCR-catalytically active material B contains a zeolite of the chabazite structure type, which contains ion-exchanged iron and/or copper, wherein (i) the SCR-catalytically active materials A and B are in the form of two material zones A and B, wherein material zone A extends from the first end of the catalyst substrate at least over part of the length L and material zone B extends from the second end of the catalyst substrate at least over part of the length L, or wherein (ii) the catalyst substrate is formed by the SCR-catalytically active material A or B and a matrix component and the SCR-catalytically active material B or A extends at least over part of the length L of the catalyst substrate in the form of a material zone B or A.

    Apparatus and method for desulfation of a catalyst used in a lean burn methane source fueled combustion system
    55.
    发明授权
    Apparatus and method for desulfation of a catalyst used in a lean burn methane source fueled combustion system 有权

    公开(公告)号：US10184374B2

    公开(公告)日：2019-01-22

    申请号：US15438029

    申请日：2017-02-21

    申请人： UMICORE AG & CO. KG

    发明人： Xue Han ,  John Nunan

    IPC分类号： F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  B01J38/04 ,  F02B43/10 ,  B01D53/96 ,  B01D53/94 ,  F01N3/10 ,  F01N3/36

    摘要： Apparatus for reactivating a sulfur poisoned oxidation catalyst operating in exhaust of a lean burn, methane source fueled combustion device. Reactivation includes desulfation of the poisoned catalyst through a CO supplementation apparatus communicating with the control unit that is adapted to supplement CO content in exhaust reaching the catalyst, while avoiding an overall rich exhaust atmosphere at the catalyst (e.g., an added supply of hydrocarbons to one or more-of the lean burn engine's combustion chambers as by an ECU controlled extra supply of NG to some of the combustion chambers). Also featured is a method for desulfation of an oxidation catalyst of a lean burn CNG engine by supplying excess CO to exhaust reaching the catalyst while retaining an overall lean state, and a method of assembling an apparatus for reactivating a sulfur deactivated lean burn NG engine catalyst by assembling a CO supplementation apparatus with control unit.

    Lean NOx traps, trapping materials, washcoats, and methods of making and using the same
    56.
    发明授权
    Lean NOx traps, trapping materials, washcoats, and methods of making and using the same 有权

    公开(公告)号：US10124322B2

    公开(公告)日：2018-11-13

    申请号：US15019828

    申请日：2016-02-09

    申请人： Umicore AG & Co. KG

    发明人： Maximilian A. Biberger ,  Bryant Kearl ,  Qinghua Yin ,  Xiwang Qi ,  David Leamon

    IPC分类号： B01J23/63 ,  B01J37/02 ,  B01D53/94 ,  B01J37/34 ,  B01J37/08 ,  B01J35/00 ,  B01J37/00

    摘要： The present disclosure relates to micron-sized particle used for catalyzing and storing NOx gases, such as those found in vehicle exhaust emissions, washcoats employing micron-sized particle used for catalyzing and storing NOx gases, washcoat coated substrates, lean NOx trap (LNT) systems, and vehicles using such systems. Also provided are methods of preparing micron-sized particle used for catalyzing and storing NOx gases, as well as preparation of washcoats and coated substrates. More specifically, the present disclosure relates to a lean NOx trapping materials, wherein the materials include a NOx catalytic component attached to a micron-sized carrier particle and a NOx storage component, as well as washcoats and coated substrates useful in the treatment of exhaust gases. In some embodiments, a portion of the NOx storage component is attached to the micron-sized carrier particle.

    SCR catalyst
    59.
    发明授权
    SCR catalyst 有权

    公开(公告)号：US10022704B2

    公开(公告)日：2018-07-17

    申请号：US15035640

    申请日：2014-11-19

    申请人： UMICORE AG & CO. KG

    发明人： Stephan Malmberg ,  Nicola Soeger ,  Yvonne Demel ,  Gerald Jeske

    IPC分类号： B01J23/30 ,  B01J35/00 ,  B01J35/04 ,  B01J35/10 ,  B01D53/94 ,  B01J37/02 ,  B01J37/08 ,  B01J21/06

    摘要： The invention relates to a catalyst comprising at least two catalytically active layers, A and B, wherein A contains a carrier oxide and components A1 and A2, and B contains a carrier oxide and components B1, B2, and B3, wherein A1, A2, and B1 to B3 are defined as disclosed in claim 1. The proportion of component A1 in layer A is thereby greater than the proportion of component B1 in layer B, wherein the proportion of layer A with respect to the total weight of layers A and B, is greater than the proportion of layer B. The invention further relates to a method for reducing nitrogen oxides in exhaust gases of lean-burn internal combustion engines and to an exhaust gas cleaning system.