High temperature ammonia SCR catalyst and method of using the catalyst
    1.
    发明申请
    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:US20080167178A1

    公开(公告)日:2008-07-10

    申请号:US11731570

    申请日:2007-03-29

    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: 提供催化剂和用氨选择还原氮氧化物(“NO”x“)的方法。 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。 进口NO x的高温和低水平对选择性催化还原(SCR)催化剂都是挑战的。

    High temperature ammonia SCR catalyst and method of using the catalyst
    2.
    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

    IPC分类号: B01J29/06

    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。

    System for Making Renewable Fuels
    9.
    发明申请
    System for Making Renewable Fuels 有权
    制造可再生燃料的制度

    公开(公告)号:US20120189498A1

    公开(公告)日:2012-07-26

    申请号:US13361828

    申请日:2012-01-30

    IPC分类号: G05D23/00

    摘要: Multiple catalytic processing stations couple with a system which produces volatile gas streams from biomass decomposition at discrete increasing temperatures. These catalytic processing stations can be programmed to maximize conversion of biomass to useful renewable fuel components based on input feedstock and desired outputs.

    摘要翻译: 多个催化加工站与在不连续增加的温度下从生物质分解产生挥发性气体流的系统耦合。 这些催化加工站可以被编程为基于输入原料和期望的输出使生物质转化成有用的可再生燃料组分。

    SYSTEM FOR MAKING RENEWABLE FUELS
    10.
    发明申请
    SYSTEM FOR MAKING RENEWABLE FUELS 有权
    制造可再生能源燃料的系统

    公开(公告)号:US20110212004A1

    公开(公告)日:2011-09-01

    申请号:US13071038

    申请日:2011-03-24

    IPC分类号: B01J8/00

    摘要: Multiple catalytic processing stations couple with a system which produces volatile gas streams from biomass decomposition at discrete increasing temperatures. These catalytic processing stations can be programmed to maximize conversion of biomass to useful renewable fuel components based on input feedstock and desired outputs.

    摘要翻译: 多个催化加工站与在不连续增加的温度下从生物质分解产生挥发性气体流的系统耦合。 这些催化加工站可以被编程为基于输入原料和期望的输出使生物质转化成有用的可再生燃料组分。