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    Catalyst System for the Reduction of NOx and NH3 Emissions
    11.
    发明申请
    Catalyst System for the Reduction of NOx and NH3 Emissions 有权
    用于减少NOx和NH3排放的催化剂体系

    公开(公告)号：US20070157608A1

    公开(公告)日：2007-07-12

    申请号：US11684064

    申请日：2007-03-09

    申请人： Haren Gandhi ,  John Cavataio ,  Robert Hammerle ,  Yisun Cheng

    发明人： Haren Gandhi ,  John Cavataio ,  Robert Hammerle ,  Yisun Cheng

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N3/0814 ,  B01D53/8631 ,  F01N3/0842 ,  F01N3/108 ,  F01N13/0097 ,  F01N2240/25 ,  F01N2510/06 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

    摘要： This catalyst system simultaneously removes ammonia and enhances net NOx, conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx, trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx, trap generated during the rich pulses. The stored ammonia then reacts with the NOx, emitted from the upstream lean NOx, trap—enhancing the net NOx, conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx, trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx, slip, reduction in NOx. spikes and thus an improved net NOx, conversion during lean and rich operation.

    摘要翻译： 该催化剂体系同时除去氨并通过将NH 3 -SCR催化剂配制物放置在贫NO x x N下游来增强净NO x转化率， 陷阱。 通过这样做，NH 3 -SCR催化剂在富脉冲期间产生的捕集阱中吸附来自上游的贫NO x的氨。 然后，储存的氨与从上游的贫NO x x发射的NO x反应，显着地提高净NO x x的转化率 ，同时耗尽储存的氨。 通过将稀的NO 3 x 3捕集器与NH 3 -SCR催化剂结合，该体系允许还原或除去NH 3和NO 在中，滑动，NO 中的减少。 尖峰，因此在精益和丰富的操作期间的改进的净NO x x转换。

    Catalyst System for the Reduction of NOx and NH3 Emissions
    12.
    发明申请
    Catalyst System for the Reduction of NOx and NH3 Emissions 审中-公开
    用于减少NOx和NH3排放的催化剂体系

    公开(公告)号：US20110005200A1

    公开(公告)日：2011-01-13

    申请号：US12877901

    申请日：2010-09-08

    申请人： Haren S. GANDHI ,  John Vito CAVATAIO ,  Robert Henry HAMMERLE ,  Yisun CHENG

    发明人： Haren S. GANDHI ,  John Vito CAVATAIO ,  Robert Henry HAMMERLE ,  Yisun CHENG

    IPC分类号： F01N3/00 ,  B01D53/94 ,  B01D53/56

    CPC分类号： F01N3/0814 ,  B01D53/8631 ,  F01N3/0842 ,  F01N3/108 ,  F01N13/0097 ,  F01N2240/25 ,  F01N2510/06 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

    摘要： This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.

    摘要翻译： 该催化剂体系同时除去氨并通过将NH 3 -SCR催化剂配制物放置在贫NOx捕集器下游来增强净NOx转化率。 通过这样做，NH3-SCR催化剂从富脉冲期间产生的上游贫NOx捕集器中吸附氨。 然后，储存的氨与从上游的贫NOx捕集器发射的NOx反应 - 显着提高净NOx转化率，同时消耗储存的氨。 通过将贫NOx捕集器与NH3-SCR催化剂结合，该系统允许减少或消除NH3和NOx滑脱，减少NOx尖峰，从而在精益和丰富的运行期间改善净NOx转化率。

    Catalyst System for the Reduction of NOx and NH3 Emissions
    14.
    发明申请
    Catalyst System for the Reduction of NOx and NH3 Emissions 有权
    用于减少NOx和NH3排放的催化剂体系

    公开(公告)号：US20090149318A1

    公开(公告)日：2009-06-11

    申请号：US12325787

    申请日：2008-12-01

    申请人： Haren S. GANDHI ,  John Vito CAVATAIO ,  Robert Henry HAMMERLE ,  Yisun CHENG

    发明人： Haren S. GANDHI ,  John Vito CAVATAIO ,  Robert Henry HAMMERLE ,  Yisun CHENG

    IPC分类号： B01J29/064

    CPC分类号： F01N3/0814 ,  B01D53/8631 ,  F01N3/0842 ,  F01N3/108 ,  F01N13/0097 ,  F01N2240/25 ,  F01N2510/06 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

    摘要： This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.

    摘要翻译： 该催化剂体系同时除去氨并通过将NH 3 -SCR催化剂配制物放置在贫NOx捕集器下游来增强净NOx转化率。 通过这样做，NH3-SCR催化剂从富脉冲期间产生的上游贫NOx捕集器中吸附氨。 然后，储存的氨与从上游的贫NOx捕集器发射的NOx反应 - 显着提高净NOx转化率，同时消耗储存的氨。 通过将贫NOx捕集器与NH3-SCR催化剂结合，该系统允许减少或消除NH3和NOx滑脱，减少NOx尖峰，从而在精益和丰富的运行期间改善净NOx转化率。

    Method for the reduction of NOx and NH3 emissions
    15.
    发明授权
    Method for the reduction of NOx and NH3 emissions 有权
    减少NOx和NH3排放的方法

    公开(公告)号：US07485273B2

    公开(公告)日：2009-02-03

    申请号：US11684064

    申请日：2007-03-09

    申请人： Haren S. Gandhi ,  John Vito Cavataio ,  Robert Henry Hammerle ,  Yisun Cheng

    发明人： Haren S. Gandhi ,  John Vito Cavataio ,  Robert Henry Hammerle ,  Yisun Cheng

    IPC分类号： B01D53/56 ,  B01D53/92 ,  B01D53/94 ,  F01N3/08 ,  F01N3/10

    CPC分类号： F01N3/0814 ,  B01D53/8631 ,  F01N3/0842 ,  F01N3/108 ,  F01N13/0097 ,  F01N2240/25 ,  F01N2510/06 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

    摘要： This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3—SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3—SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3—SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.

    摘要翻译： 该催化剂体系同时除去氨并通过将NH 3 -SCR催化剂配制物放置在贫NOx捕集器下游来增强净NOx转化率。 通过这样做，NH3-SCR催化剂从富脉冲期间产生的上游贫NOx捕集器中吸附氨。 然后，储存的氨与从上游的贫NOx捕集器发射的NOx反应 - 显着提高净NOx转化率，同时消耗储存的氨。 通过将贫NOx捕集器与NH3-SCR催化剂结合，该系统允许减少或消除NH3和NOx滑脱，减少NOx尖峰，从而在精益和丰富的运行期间改善净NOx转化率。

    Catalyst System for the Reduction of NOx and NH3 Emissions
    16.
    发明申请
    Catalyst System for the Reduction of NOx and NH3 Emissions 有权
    用于减少NOx和NH3排放的催化剂体系

    公开(公告)号：US20070144156A1

    公开(公告)日：2007-06-28

    申请号：US11684240

    申请日：2007-03-09

    申请人： Haren Gandhi ,  John Cavataio ,  Robert Hammerle ,  Yisun Cheng

    发明人： Haren Gandhi ,  John Cavataio ,  Robert Hammerle ,  Yisun Cheng

    IPC分类号： F01N3/00 ,  F01N3/10 ,  F01N3/02

    CPC分类号： F01N3/0814 ,  B01D53/8631 ,  F01N3/0842 ,  F01N3/108 ,  F01N13/0097 ,  F01N2240/25 ,  F01N2510/06 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

    摘要： This catalyst system simultaneously removes ammonia and enhances net NO, conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NO. spikes and thus an improved net NOx conversion during lean and rich operation.

    摘要翻译： 该催化剂体系同时除去氨并通过将NH 3 -SCR催化剂配制物放置在贫NO X陷阱的下游来增强净NO的转化率。 通过这样做，NH 3 -SCR催化剂从富脉冲期间产生的上游的贫NO x N阱中吸附氨。 然后，储存的氨与从上游的稀硝酸盐捕集阱发射的NO x x反应显着提高净NO x转化率，同时耗尽 储存的氨。 通过将贫NO 3 X 3捕集阱与NH 3 -SCR催化剂结合，该体系允许还原或除去NH 3和NO 3， SUB> x 滑动，NO减少。 并且因此在精益和丰富的操作期间改进了净NO x x转换。

    Catalyst system for the reduction of NOx and NH3 emissions
    19.
    发明授权
    Catalyst system for the reduction of NOx and NH3 emissions 有权
    用于减少NOx和NH3排放的催化剂体系

    公开(公告)号：US08240132B2

    公开(公告)日：2012-08-14

    申请号：US11684246

    申请日：2007-03-09

    申请人： Haren S. Gandhi ,  John Vito Cavataio ,  Robert Henry Hammerle ,  Yisun Cheng

    发明人： Haren S. Gandhi ,  John Vito Cavataio ,  Robert Henry Hammerle ,  Yisun Cheng

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0814 ,  B01D53/8631 ,  F01N3/0842 ,  F01N3/108 ,  F01N13/0097 ,  F01N2240/25 ,  F01N2510/06 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

    摘要： This catalyst system simultaneously removes ammonia and enhances net NO, conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap—enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.

    摘要翻译： 该催化剂体系同时去除氨并通过将NH 3 -SCR催化剂配制物放置在贫NOx捕集器下游来增强净NO，转化率。 通过这样做，NH3-SCR催化剂从富脉冲期间产生的上游贫NOx捕集器中吸附氨。 然后，储存的氨与从上游的贫NOx捕集器发射的NOx反应 - 显着提高净NOx转化率，同时消耗储存的氨。 通过将贫NOx捕集器与NH3-SCR催化剂结合，该系统允许减少或消除NH3和NOx滑脱，减少NOx尖峰，从而在精益和丰富的运行期间改善净NOx转化率。