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    CATALYSTS FOR THE REDUCTION OF AMMONIA EMISSION FROM RICH-BURN EXHAUST
    4.
    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

    申请人： Joseph M. Fedeyko ,  Hai-Ying Chen ,  Arthur J. Reining

    发明人： Joseph M. Fedeyko ,  Hai-Ying Chen ,  Arthur J. Reining

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

    CPC分类号： B01J29/85 ,  B01D53/58 ,  B01D53/9436 ,  B01D53/945 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9022 ,  B01J29/072 ,  B01J29/076 ,  B01J29/763 ,  B01J37/0244 ,  B01J37/0246 ,  F01N3/101 ,  Y02T10/22

    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
    5.
    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

    申请人： Joseph M. Fedeyko ,  Hai-Ying Chen ,  Arthur J. Reining

    发明人： Joseph M. Fedeyko ,  Hai-Ying Chen ,  Arthur J. Reining

    IPC分类号： B01D53/58 ,  B01D53/94 ,  B01J35/00 ,  F01N3/10

    CPC分类号： B01J29/85 ,  B01D53/9436 ,  B01D53/945 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9022 ,  B01J23/42 ,  B01J29/072 ,  B01J29/076 ,  B01J29/763 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246 ,  Y02A50/2346 ,  Y02T10/22

    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
    9.
    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

    申请人： Joseph M. Fedeyko ,  Hai-Ying Chen ,  Arthur J. Reining

    发明人： Joseph M. Fedeyko ,  Hai-Ying Chen ,  Arthur J. Reining

    IPC分类号： B01D53/58 ,  B01D53/56 ,  B01D53/72 ,  B01D53/62 ,  B01J29/04 ,  B01D50/00

    CPC分类号： B01J29/85 ,  B01D53/9436 ,  B01D53/945 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9022 ,  B01J23/42 ,  B01J29/072 ,  B01J29/076 ,  B01J29/763 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0246 ,  Y02A50/2346 ,  Y02T10/22

    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。