CATALYSTS FOR THE REDUCTION OF AMMONIA EMISSION FROM RICH-BURN EXHAUST
    12.
    发明申请
    CATALYSTS FOR THE REDUCTION OF AMMONIA EMISSION FROM RICH-BURN EXHAUST 有权
    催化剂用于减少排气中的氨排放

    公开(公告)号:US20140079616A1

    公开(公告)日:2014-03-20

    申请号:US14110565

    申请日:2012-01-23

    IPC分类号: B01J29/85 F01N3/10 B01D53/58

    摘要: A system for reducing ammonia (NH3) emissions includes (a) a first component comprising a first substrate containing a three-way catalyst, wherein the first component is disposed upstream of a second component comprising a second substrate containing an ammonia oxidation catalyst, wherein said ammonia oxidation catalyst comprises a small pore molecular sieve supporting at least one transition metal; and (b) an oxygen-containing gas input disposed between the components. For example, a CHA Framework Type small pore molecular sieve may be used. A method for reducing NH3 emission includes introducing an oxygen-containing gas into a gas stream to produce an oxygenated gas stream; and exposing the oxygenated gas stream to an NH3 oxidation catalyst to selectively oxidize at least a portion of the NH3 to N2. The method may further include the step of exposing a rich burn exhaust gas to a three-way catalyst to produce the gas stream comprising NH3.

    摘要翻译: 用于还原氨(NH 3)排放的系统包括(a)第一组分,其包含含有三元催化剂的第一基质,其中所述第一组分设置在包含含有氨氧化催化剂的第二底物的第二组分的上游,其中所述 氨氧化催化剂包括支撑至少一种过渡金属的小孔分子筛; 和(b)设置在所述部件之间的含氧气体输入。 例如,可以使用CHA框架型小孔分子筛。 减少NH 3排放的方法包括将含氧气体引入气流中以产生氧化气流; 并将氧化的气流暴露于NH 3氧化催化剂以选择性地将至少一部分NH 3氧化成N 2。 该方法还可以包括将富燃烧废气暴露于三元催化剂以产生包含NH 3的气流的步骤。

    Catalysts for the reduction of ammonia emission from rich-burn exhaust
    13.
    发明授权
    Catalysts for the reduction of ammonia emission from rich-burn exhaust 有权
    用于减少富燃烧排气中氨排放的催化剂

    公开(公告)号:US08101146B2

    公开(公告)日:2012-01-24

    申请号:US13083154

    申请日:2011-04-08

    摘要: A system for reducing ammonia (NH3) emissions includes (a) a first component comprising a first substrate containing a three-way catalyst, wherein the first component is disposed upstream of a second component comprising a second substrate containing an ammonia oxidation catalyst, wherein said ammonia oxidation catalyst comprises a small pore molecular sieve supporting at least one transition metal; and (b) an oxygen-containing gas input disposed between the components. For example, a CHA Framework Type small pore molecular sieve may be used. A method for reducing NH3 emission includes introducing an oxygen-containing gas into a gas stream to produce an oxygenated gas stream; and exposing the oxygenated gas stream to an NH3 oxidation catalyst to selectively oxidize at least a portion of the NH3 to N2.

    摘要翻译: 用于还原氨(NH 3)排放的系统包括(a)第一组分,其包含含有三元催化剂的第一基质,其中所述第一组分设置在包含含有氨氧化催化剂的第二底物的第二组分的上游,其中所述 氨氧化催化剂包括支撑至少一种过渡金属的小孔分子筛; 和(b)设置在所述部件之间的含氧气体输入。 例如,可以使用CHA框架型小孔分子筛。 减少NH 3排放的方法包括将含氧气体引入气流中以产生氧化气流; 并将氧化的气流暴露于NH 3氧化催化剂以选择性地将至少一部分NH 3氧化成N 2。

    CATALYSTS FOR THE REDUCTION OF AMMONIA EMISSION FROM RICH-BURN EXHAUST
    16.
    发明申请
    CATALYSTS FOR THE REDUCTION OF AMMONIA EMISSION FROM RICH-BURN EXHAUST 有权
    催化剂用于减少排气中的氨排放

    公开(公告)号:US20110182791A1

    公开(公告)日:2011-07-28

    申请号:US13083154

    申请日:2011-04-08

    摘要: A system for reducing ammonia (NH3) emissions includes (a) a first component comprising a first substrate containing a three-way catalyst, wherein the first component is disposed upstream of a second component comprising a second substrate containing an ammonia oxidation catalyst, wherein said ammonia oxidation catalyst comprises a small pore molecular sieve supporting at least one transition metal; and (b) an oxygen-containing gas input disposed between the components. For example, a CHA Framework Type small pore molecular sieve may be used. A method for reducing NH3 emission includes introducing an oxygen-containing gas into a gas stream to produce an oxygenated gas stream; and exposing the oxygenated gas stream to an NH3 oxidation catalyst to selectively oxidize at least a portion of the NH3 to N2. The method may further include the step of exposing a rich burn exhaust gas to a three-way catalyst to produce the gas stream comprising NH3.

    摘要翻译: 用于还原氨(NH 3)排放的系统包括(a)第一组分,其包含含有三元催化剂的第一基质,其中所述第一组分设置在包含含有氨氧化催化剂的第二底物的第二组分的上游,其中所述 氨氧化催化剂包括支撑至少一种过渡金属的小孔分子筛; 和(b)设置在所述部件之间的含氧气体输入。 例如,可以使用CHA框架型小孔分子筛。 减少NH 3排放的方法包括将含氧气体引入气流中以产生氧化气流; 并将氧化的气流暴露于NH 3氧化催化剂以选择性地将至少一部分NH 3氧化成N 2。 该方法还可以包括将富燃烧废气暴露于三元催化剂以产生包含NH 3的气流的步骤。

    BASE METAL CATALYSTS FOR THE OXIDATION OF CARBON MONOXIDE AND VOLATILE ORGANIC COMPOUNDS
    17.
    发明申请
    BASE METAL CATALYSTS FOR THE OXIDATION OF CARBON MONOXIDE AND VOLATILE ORGANIC COMPOUNDS 审中-公开
    一氧化碳和挥发性有机化合物氧化的基础金属催化剂

    公开(公告)号:US20100266473A1

    公开(公告)日:2010-10-21

    申请号:US12427375

    申请日:2009-04-21

    摘要: A method for oxidizing carbon monoxide (CO) and volatile organic compounds (VOCS) comprises contacting a gas containing water vapor and said CO and VOCs with a catalyst composition comprising at least one base metal promoter and at least one base metal catalyst supported on an oxide support material comprising one or more of alumina, silica, zirconia, ceria, and titania, wherein the VOCs comprise one or more of methyl acetate, methane, methyl bromide, benzene, methanol, methyl ethyl ketone, butane, and butene.

    摘要翻译: 氧化一氧化碳(CO)和挥发性有机化合物(VOCS)的方法包括使含有水蒸汽和所述CO和VOC的气体与包含至少一种贱金属助催化剂和至少一种负载在氧化物上的贱金属催化剂的催化剂组合物接触 包含氧化铝,二氧化硅,氧化锆,二氧化铈和二氧化钛中的一种或多种的载体材料,其中VOC包括一种或多种乙酸甲酯,甲烷,甲基溴,苯,甲醇,甲基乙基酮,丁烷和丁烯。