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    Ammonia SCR catalyst and method of using the catalyst
    5.
    发明申请
    Ammonia SCR catalyst and method of using the catalyst 有权
    氨SCR催化剂和催化剂的使用方法

    公开(公告)号：US20090081098A1

    公开(公告)日：2009-03-26

    申请号：US12313501

    申请日：2008-11-20

    申请人： Stephen J. Golden ,  Svetlana Iretskaya

    发明人： Stephen J. Golden ,  Svetlana Iretskaya

    IPC分类号： B01D53/56 ,  B01J29/00 ,  B01J29/064

    CPC分类号： B01J29/061 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2255/2065 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/407 ,  B01D2255/50 ,  B01J23/34 ,  B01J29/076 ,  B01J29/48 ,  B01J29/7815 ,  B01J37/0242 ,  B01J37/0246 ,  Y02A50/2325 ,  Y02T10/24

    摘要： A catalyst and a method for selectively reducing nitrogen oxides with ammonia are provided. The catalyst includes a first component of copper, chromium, cobalt, nickel, manganese, iron, niobium, or mixtures thereof, a second component of cerium, a lanthanide, a mixture of lanthanides, or mixtures thereof, and a zeolite. The catalyst may also include strontium as an additional second component. The catalyst selectively reduces nitrogen oxides to nitrogen with ammonia at low temperatures. The catalyst has high hydrothermal stability. The catalyst has high activity for conversion of nitrogen oxides in exhaust streams, and are not significantly influenced by the NO/NO2 ratio. The catalyst and the method may have special application to selective reduction of nitrogen oxides in exhaust gas from diesel vehicles, although the catalyst and the method have broad application to a wide range of gas streams that contain nitrogen oxides. The temperature of exhaust gas from diesel vehicles is low, and the exhaust gas generally has a high NO/NO2 ratio. Both the low temperature and the high NO/NO2 ratio are challenging for selective catalytic reduction (SCR) catalysts.

    摘要翻译： 提供催化剂和用氨选择还原氮氧化物的方法。 催化剂包括铜，铬，钴，镍，锰，铁，铌或其混合物的第一组分，铈的第二组分，镧系元素，镧系元素或其混合物的混合物以及沸石。 催化剂还可以包括作为另外的第二组分的锶。 催化剂在低温下用氨选择性还原氮氧化物至氮气。 该催化剂具有很高的水热稳定性。 该催化剂对废气流中氮氧化物的转化活性高，不受NO / NO2比影响。 催化剂和方法可以特别适用于选择性还原来自柴油车辆的废气中的氮氧化物，尽管催化剂和方法广泛应用于含有氮氧化物的各种气流。 来自柴油车辆的废气温度低，废气通常具有高NO / NO2比例。 低温和高NO / NO 2比都是选择性催化还原（SCR）催化剂的挑战。

    PLATINUM GROUP METAL-FREE CATALYSTS FOR REDUCING THE IGNITION TEMPERATURE OF PARTICULATES ON A DIESEL PARTICULATE FILTER
    6.
    发明申请
    PLATINUM GROUP METAL-FREE CATALYSTS FOR REDUCING THE IGNITION TEMPERATURE OF PARTICULATES ON A DIESEL PARTICULATE FILTER 审中-公开
    用于减少柴油颗粒过滤器上颗粒点火温度的铂族金属无机催化剂

    公开(公告)号：US20110176979A1

    公开(公告)日：2011-07-21

    申请号：US13075481

    申请日：2011-03-30

    申请人： Keshavaraja Alive ,  Ann-Laure Baudoux ,  Stephen J. Golden ,  Svetlana Iretskaya

    发明人： Keshavaraja Alive ,  Ann-Laure Baudoux ,  Stephen J. Golden ,  Svetlana Iretskaya

    IPC分类号： B01D53/94

    CPC分类号： F01N3/035 ,  B01D53/944 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/2073 ,  B01D2255/20746 ,  B01D2255/20761 ,  B01J23/34 ,  B01J23/83 ,  B01J37/0205 ,  B01J37/0242 ,  F01N3/0231 ,  F01N2370/02 ,  F01N2510/065

    摘要： A catalyzed diesel particulate filter (CDPF) and a method for filtering particulates from diesel engine exhaust are provided, where the catalyzed diesel particulate filter includes a substrate and a catalyst composition, where the catalyst composition contains at least one first component, at least one second component, and at least one third component, where the first component is at least one first component selected from the group consisting of cerium and a lanthanide and mixtures thereof, the at least one second component is selected from the group consisting of cobalt, copper, manganese and mixtures thereof; and the third component comprises strontium, where the first component, the second component, and the third component are in an oxide form after calcination. The catalyst on the catalyzed diesel particulate filter lowers the temperature at which particulates are removed from the CDPF by oxidizing the particulates on the filter. The catalyzed diesel particulate filter may also include a washcoat. Washcoats prepared from colloidal aluminum oxide may have higher surface areas and pore volumes loadings than washcoats containing aluminum oxide prepared from aluminum nitrate.

    摘要翻译： 提供催化柴油微粒过滤器（CDPF）和用于过滤来自柴油发动机废气的颗粒的方法，其中催化柴油颗粒过滤器包括底物和催化剂组合物，其中催化剂组合物含有至少一种第一组分，至少一个第二组分 组分和至少一种第三组分，其中第一组分是选自铈和镧系元素及其混合物的至少一种第一组分，所述至少一种第二组分选自钴，铜， 锰及其混合物; 并且第三组分包括锶，其中第一组分，第二组分和第三组分在煅烧后为氧化物形式。 催化柴油颗粒过滤器上的催化剂通过氧化过滤器上的微粒而降低从CDPF除去微粒的温度。 催化的柴油颗粒过滤器还可以包括修补基面涂层。 由胶体氧化铝制成的洗涤布可能具有比含有由硝酸铝制备的氧化铝的洗涤涂层更高的表面积和孔体积载量。

    AMMONIA SCR CATALYST AND METHOD OF USING THE CATALYST
    8.
    发明申请
    AMMONIA SCR CATALYST AND METHOD OF USING THE CATALYST 审中-公开
    氨纶SCR催化剂和使用催化剂的方法

    公开(公告)号：US20090297419A1

    公开(公告)日：2009-12-03

    申请号：US12537655

    申请日：2009-08-07

    申请人： Stephen J. Golden ,  Svetlana Iretskaya

    发明人： Stephen J. Golden ,  Svetlana Iretskaya

    IPC分类号： B01D53/56 ,  B01J29/06 ,  B01J29/18 ,  B01J29/40 ,  B01J29/08

    CPC分类号： B01J29/061 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2255/2065 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/407 ,  B01D2255/50 ,  B01J23/34 ,  B01J29/076 ,  B01J29/48 ,  B01J29/7815 ,  B01J37/0242 ,  B01J37/0246 ,  Y02A50/2325 ,  Y02T10/24

    摘要： A catalyst and a method for selectively reducing nitrogen oxides with ammonia are provided. The catalyst includes a first component of copper, chromium, cobalt, nickel, manganese, iron, niobium, or mixtures thereof, a second component of cerium, a lanthanide, a mixture of lanthanides, or mixtures thereof, and a zeolite. The catalyst may also include strontium as an additional second component. The catalyst selectively reduces nitrogen oxides to nitrogen with ammonia at low temperatures. The catalyst has high hydrothermal stability. The catalyst has high activity for conversion of nitrogen oxides in exhaust streams, and are not significantly influenced by the NO/NO2 ratio. The catalyst and the method may have special application to selective reduction of nitrogen oxides in exhaust gas from diesel vehicles, although the catalyst and the method have broad application to a wide range of gas streams that contain nitrogen oxides. The temperature of exhaust gas from diesel vehicles is low, and the exhaust gas generally has a high NO/NO2 ratio. Both the low temperature and the high NO/NO2 ratio are challenging for selective catalytic reduction (SCR) catalysts.

    摘要翻译： 提供催化剂和用氨选择还原氮氧化物的方法。 催化剂包括铜，铬，钴，镍，锰，铁，铌或其混合物的第一组分，铈的第二组分，镧系元素，镧系元素或其混合物的混合物以及沸石。 催化剂还可以包括作为另外的第二组分的锶。 催化剂在低温下用氨选择性还原氮氧化物至氮气。 该催化剂具有很高的水热稳定性。 该催化剂对废气流中氮氧化物的转化活性高，不受NO / NO2比影响。 催化剂和方法可以特别适用于选择性还原来自柴油车辆的废气中的氮氧化物，尽管催化剂和方法广泛应用于含有氮氧化物的各种气流。 来自柴油车辆的废气温度低，废气通常具有高NO / NO2比例。 低温和高NO / NO 2比都是选择性催化还原（SCR）催化剂的挑战。

    High temperature ammonia SCR catalyst and method of using the catalyst
    9.
    发明授权
    High temperature ammonia SCR catalyst and method of using the catalyst 有权
    高温氨SCR催化剂及其使用方法

    公开(公告)号：US08802582B2

    公开(公告)日：2014-08-12

    申请号：US11731570

    申请日：2007-03-29

    申请人： Rajashekharam Malyala ,  Svetlana Iretskaya ,  Stephen J. Golden

    发明人： Rajashekharam Malyala ,  Svetlana Iretskaya ,  Stephen J. Golden

    IPC分类号： B01J29/06

    CPC分类号： B01J29/061 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2255/2065 ,  B01D2255/20738 ,  B01D2255/407 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2255/908 ,  B01J23/002 ,  B01J29/072 ,  B01J29/076 ,  B01J29/40 ,  B01J29/405 ,  B01J29/7007 ,  B01J29/7057 ,  B01J29/80 ,  B01J37/0242 ,  B01J37/0246 ,  B01J2229/20 ,  B01J2523/36 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/48 ,  Y02T10/24

    摘要： A catalyst and a method for selectively reducing nitrogen oxides (“NOx”) with ammonia are provided. The catalyst includes a first component comprising a zeolite or mixture of zeolites selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-18, ZSM-23, MCM-zeolites, mordenite, faujasite, ferrierite, zeolite beta, and mixtures thereof; a second component comprising at least one member selected from the group consisting of cerium, iron, copper, gallium, manganese, chromium, cobalt, molybdenum, tin, rhenium, tantalum, osmium, barium, boron, calcium, strontium, potassium, vanadium, nickel, tungsten, an actinide, mixtures of actinides, a lanthanide, mixtures of lanthanides, and mixtures thereof; optionally an oxygen storage material and optionally an inorganic oxide. The catalyst selectively reduces nitrogen oxides to nitrogen with ammonia at high temperatures. The catalyst has high hydrothermal stability. The catalyst has high activity for conversion of low levels of nitrogen oxides in exhaust streams. The catalyst and the method may have special application to selective reduction of nitrogen oxides in exhaust gas from gas turbines and gas engines, although the catalyst and the method have broad application to a wide range of gas streams that have excess oxygen and high temperatures. The temperature of exhaust gas from gas turbines and gas engines is high. Both the high temperature and the low levels of inlet NOx are challenging for selective catalytic reduction (SCR) catalysts.

    摘要翻译： 提供了用氨选择还原氮氧化物（“NOx”）的催化剂和方法。 催化剂包括第一组分，其包含选自ZSM-5，ZSM-11，ZSM-12，ZSM-18，ZSM-23，MCM-沸石，丝光沸石，八面沸石，镁碱沸石，沸石的沸石或沸石混合物 β及其混合物; 包含选自铈，铁，铜，镓，锰，铬，钴，钼，锡，铼，钽，锇，钡，硼，钙，锶，钾，钒中的至少一种的第二组分， 镍，钨，锕系元素，锕系元素的混合物，镧系元素，镧系元素的混合物及其混合物; 任选的储氧材料和任选的无机氧化物。 该催化剂在高温下用氨选择性还原氮氧化物至氮气。 该催化剂具有很高的水热稳定性。 该催化剂具有高的活性，用于转化废气流中低含量的氮氧化物。 催化剂和方法可以特别适用于选择性还原来自燃气轮机和燃气发动机的废气中的氮氧化物，尽管催化剂和方法广泛应用于具有过量氧气和高温的多种气流。 燃气轮机和燃气发动机的废气温度高。 入口NOx的高温和低水平都是选择性催化还原（SCR）催化剂的挑战。

    Platinum group metal-free catalysts for reducing the ignition temperature of particulates on a diesel particulate filter
    10.
    发明授权
    Platinum group metal-free catalysts for reducing the ignition temperature of particulates on a diesel particulate filter 有权
    用于降低柴油颗粒过滤器上的颗粒的点燃温度的铂族金属催化剂

    公开(公告)号：US08318629B2

    公开(公告)日：2012-11-27

    申请号：US11251372

    申请日：2005-10-14

    申请人： Keshavaraja Alive ,  Anne-Laure Baudoux ,  Stephen J. Golden ,  Svetlana Iretskaya

    发明人： Keshavaraja Alive ,  Anne-Laure Baudoux ,  Stephen J. Golden ,  Svetlana Iretskaya

    IPC分类号： B01J23/00 ,  B01J21/00 ,  B01J29/00 ,  B01J37/00

    CPC分类号： F01N3/035 ,  B01D53/944 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/2073 ,  B01D2255/20746 ,  B01D2255/20761 ,  B01J23/34 ,  B01J23/83 ,  B01J37/0205 ,  B01J37/0242 ,  F01N3/0231 ,  F01N2370/02 ,  F01N2510/065

    摘要： A catalyzed diesel particulate filter (CDPF) and a method for filtering particulates from diesel engine exhaust are provided, where the catalyzed diesel particulate filter includes a substrate and a catalyst composition, where the catalyst composition contains at least one first component, at least one second component, and at least one third component, where the first component is at least one first component selected from the group consisting of cerium and a lanthanide and mixtures thereof, the at least one second component is selected from the group consisting of cobalt, copper, manganese and mixtures thereof; and the third component comprises strontium, where the first component, the second component, and the third component are in an oxide form after calcination. The catalyst on the catalyzed diesel particulate filter lowers the temperature at which particulates are removed from the CDPF by oxidizing the particulates on the filter. The catalyzed diesel particulate filter may also include a washcoat. Washcoats prepared from colloidal aluminum oxide may have higher surface areas and pore volumes loadings than washcoats containing aluminum oxide prepared from aluminum nitrate.

    摘要翻译： 提供催化柴油微粒过滤器（CDPF）和用于过滤来自柴油发动机废气的颗粒的方法，其中催化柴油颗粒过滤器包括底物和催化剂组合物，其中催化剂组合物含有至少一种第一组分，至少一个第二组分 组分和至少一种第三组分，其中第一组分是选自铈和镧系元素及其混合物的至少一种第一组分，所述至少一种第二组分选自钴，铜， 锰及其混合物; 并且第三组分包括锶，其中第一组分，第二组分和第三组分在煅烧后为氧化物形式。 催化柴油颗粒过滤器上的催化剂通过氧化过滤器上的微粒而降低从CDPF除去微粒的温度。 催化的柴油颗粒过滤器还可以包括修补基面涂层。 由胶体氧化铝制成的洗涤布可能具有比含有由硝酸铝制备的氧化铝的洗涤涂层更高的表面积和孔体积载量。