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公开(公告)号：US08557203B2
公开(公告)日：2013-10-15
申请号：US12611440
申请日：2009-11-03
IPC分类号： B01D50/00 , B01D53/56 , B01D53/94 , B01J8/02 , C01B21/00 , C01B23/00 , C01B25/00 , C01B31/00 , C01B33/00 , C01B35/00 , C01G28/00 , C01G30/00 , B01J23/00 , B01J21/00
CPC分类号： B01D53/944 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2257/502 , B01D2257/702 , B01D2258/012 , B01J21/12 , B01J23/42 , B01J23/44 , B01J35/0006 , B01J35/006 , B01J35/04 , B01J37/0036 , B01J37/0215 , F01N3/103 , F01N13/0093 , F01N2570/14
摘要： A device is described which provides thermally durable NO2 generation in conjunction with efficient heat-up performance for filter regeneration, and low temperature HC (hydrocarbon) and CO activity. Importantly, it provides both functions while minimizing PGM (platinum group metals) utilization and its associated impact on catalyst cost.
摘要翻译： 描述了一种装置，其提供耐热NO 2产生以及用于过滤器再生和低温HC（烃）和CO活性的有效加热性能。 重要的是，它提供了两个功能，同时使PGM（铂族金属）利用率及其对催化剂成本的相关影响最小化。
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公开(公告)号：US20110099975A1
公开(公告)日：2011-05-05
申请号：US12611440
申请日：2009-11-03
CPC分类号： B01D53/944 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2257/502 , B01D2257/702 , B01D2258/012 , B01J21/12 , B01J23/42 , B01J23/44 , B01J35/0006 , B01J35/006 , B01J35/04 , B01J37/0036 , B01J37/0215 , F01N3/103 , F01N13/0093 , F01N2570/14
摘要： A device is described which provides thermally durable NO2 generation in conjunction with efficient heat-up performance for filter regeneration, and low temperature HC (hydrocarbon) and CO activity. Importantly, it provides both functions while minimizing PGM (platinum group metals) utilization and its associated impact on catalyst cost.
摘要翻译： 描述了一种装置，其提供耐热NO 2产生以及用于过滤器再生和低温HC（烃）和CO活性的有效加热性能。 重要的是，它提供了两个功能，同时使PGM（铂族金属）利用率及其对催化剂成本的相关影响最小化。
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公开(公告)号：US08800270B2
公开(公告)日：2014-08-12
申请号：US11939825
申请日：2007-11-14
CPC分类号： F01N13/009 , F01N3/031 , F01N3/035 , F01N3/2053 , F01N2240/28
摘要： An exhaust system for treating an exhaust gas composition having NO2 in a first NO2 concentration. The exhaust system includes a first catalyst that contacts a first portion of the exhaust gas composition converting it into a first oxidized exhaust mixture that includes NO2 in a second NO2 concentration that is greater than the first NO2 concentration. The system further includes a bypass that receives a second portion of the exhaust gas composition and a recombination section positioned downstream of the first catalyst. The first oxidized exhaust mixture is combined with the second portion of the exhaust gas composition to produce a first combined exhaust gas mixture. A second catalyst converts the first combined exhaust gas mixture to a second combined exhaust gas mixture having a third NO2 concentration that is less than the second NO2 concentration. The method used by the exhaust system is also provided.
摘要翻译： 一种用于处理具有第一NO 2浓度的NO 2的排气组合物的排气系统。 排气系统包括第一催化剂，其接触废气组合物的第一部分，将第一催化剂转化成第一氧化废气混合物，其包括第二NO 2浓度大于第一NO 2浓度的NO 2。 该系统还包括接收排气组合物的第二部分的旁路和位于第一催化剂下游的复合段。 第一氧化废气混合物与废气组合物的第二部分组合以产生第一组合废气混合物。 第二催化剂将第一组合废气混合物转化为具有小于第二NO 2浓度的第三NO 2浓度的第二组合排气混合物。 还提供了排气系统使用的方法。
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公开(公告)号：US08448421B2
公开(公告)日：2013-05-28
申请号：US12704173
申请日：2010-02-11
IPC分类号： F01N3/00
摘要： A device and process for storing hydrocarbons as part of an exhaust emission control system and diagnosing the state of said device based on the incorporation of reactive metal species within the porous microstructure of the associated hydrocarbon adsorbent.
摘要翻译： 一种用于将碳氢化合物作为废气排放控制系统的一部分储存的装置和方法，并且基于在相关联的烃吸附剂的多孔微结构内引入反应性金属物种来诊断所述装置的状态。
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公开(公告)号：US20090120076A1
公开(公告)日：2009-05-14
申请号：US11939825
申请日：2007-11-14
IPC分类号： F01N3/20
CPC分类号： F01N13/009 , F01N3/031 , F01N3/035 , F01N3/2053 , F01N2240/28
摘要： An exhaust system for treating an exhaust gas composition having NO2 in a first NO2 concentration. The exhaust system includes a first catalyst that contacts a first portion of the exhaust gas composition converting it into a first oxidized exhaust mixture that includes NO2 in a second NO2 concentration that is greater than the first NO2 concentration. The system further includes a bypass that receives a second portion of the exhaust gas composition and a recombination section positioned downstream of the first catalyst. The first oxidized exhaust mixture is combined with the second portion of the exhaust gas composition to produce a first combined exhaust gas mixture. A second catalyst converts the first combined exhaust gas mixture to a second combined exhaust gas mixture having a third NO2 concentration that is less than the second NO2 concentration. The method used by the exhaust system is also provided.
摘要翻译： 一种用于处理具有第一NO 2浓度的NO 2的排气组合物的排气系统。 排气系统包括第一催化剂，其接触废气组合物的第一部分，将第一催化剂转化成第一氧化废气混合物，其包括第二NO 2浓度大于第一NO 2浓度的NO 2。 该系统还包括接收排气组合物的第二部分的旁路和位于第一催化剂下游的复合部分。 第一氧化废气混合物与废气组合物的第二部分组合以产生第一组合废气混合物。 第二催化剂将第一组合废气混合物转化为具有小于第二NO 2浓度的第三NO 2浓度的第二组合排气混合物。 还提供了排气系统使用的方法。
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公开(公告)号：US20080282670A1
公开(公告)日：2008-11-20
申请号：US11803204
申请日：2007-05-14
IPC分类号： F01N3/20
CPC分类号： F01N3/0871 , F01N3/2073 , F01N9/00 , F01N13/0097 , F01N2240/30 , Y02T10/20 , Y02T10/47
摘要： In an exhaust aftertreatment system, two LNTs having differing compositions are configured in series downstream from an inline fuel reformer. The downstream LNT is adapted for desulfation at higher temperatures than the upstream LNT. During desulfation, the system develops temperature gradients with the temperatures increasing in the direction of exhaust flow. The ordering of the LNTs is designed utilize these gradients. In a preferred embodiment, the system also includes two SCR catalysts having different compositions. The SCR catalyst with a composition adapted to tolerate higher temperatures is located nearer the downstream end of the system.
摘要翻译： 在废气后处理系统中，具有不同组成的两个LNT被配置为串联燃料重整器的下游串联。 下游LNT适于在比上游LNT更高的温度下脱硫。 在脱硫期间，系统发展温度梯度，其温度随排气方向增加。 设计LNTs的排序利用这些梯度。 在优选的实施方案中，该系统还包括具有不同组成的两种SCR催化剂。 具有适于耐受较高温度的组合物的SCR催化剂位于更接近系统的下游端。
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公开(公告)号：US20110192138A1
公开(公告)日：2011-08-11
申请号：US12704173
申请日：2010-02-11
IPC分类号： F01N9/00
摘要： A device and process for storing hydrocarbons as part of an exhaust emission control system and diagnosing the state of said device based on the incorporation of reactive metal species within the porous microstructure of the associated hydrocarbon adsorbent.
摘要翻译： 一种用于将碳氢化合物作为废气排放控制系统的一部分储存的装置和方法，并且基于在相关联的烃吸附剂的多孔微结构内引入反应性金属物种来诊断所述装置的状态。
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公开(公告)号：US07950226B2
公开(公告)日：2011-05-31
申请号：US11803204
申请日：2007-05-14
IPC分类号： F01N3/10
CPC分类号： F01N3/0871 , F01N3/2073 , F01N9/00 , F01N13/0097 , F01N2240/30 , Y02T10/20 , Y02T10/47
摘要： In an exhaust aftertreatment system, two LNTs having differing compositions are configured in series downstream from an inline fuel reformer. The downstream LNT is adapted for desulfation at higher temperatures than the upstream LNT. During desulfation, the system develops temperature gradients with the temperatures increasing in the direction of exhaust flow. The ordering of the LNTs is designed utilize these gradients. In a preferred embodiment, the system also includes two SCR catalysts having different compositions. The SCR catalyst with a composition adapted to tolerate higher temperatures is located nearer the downstream end of the system.
摘要翻译： 在废气后处理系统中，具有不同组成的两个LNT被配置为串联式燃料重整器的下游串联。 下游LNT适于在比上游LNT更高的温度下脱硫。 在脱硫期间，系统发展温度梯度，其温度随排气方向增加。 设计LNTs的排序利用这些梯度。 在优选的实施方案中，该系统还包括具有不同组成的两种SCR催化剂。 具有适于耐受较高温度的组合物的SCR催化剂位于更接近系统的下游端。
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9.发明申请PROCESS FOR REDUCING NOX EMISSIONS FROM ENGINE EXHAUST USING LNT AND SCR COMPONENTS 有权使用LNT和SCR组件减少发动机排气中NOx排放的方法公开(公告)号：US20100050613A1
公开(公告)日：2010-03-04
申请号：US12201389
申请日：2008-08-29
申请人： Owen Herman Bailey
发明人： Owen Herman Bailey
IPC分类号： F01N3/20
CPC分类号： F01N3/0878 , B01D53/90 , B01D53/9418 , B01D53/9481 , B01D2251/202 , B01D2251/204 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2255/9045 , F01N3/0814 , F01N13/009 , F01N13/011 , F01N2240/30 , F01N2240/36 , F01N2410/12 , F01N2610/02 , F01N2610/03 , F01N2610/04 , F01N2610/05 , F01N2610/14 , Y02A50/2325 , Y02T10/24
摘要： A method of reducing NOx in a vehicle exhaust operating by alternating exhaust flow between two lean NOx traps and directing the emerging exhaust to a downstream SCR catalyst system. While exhaust predominantly flows through one of the lean NOx traps, a reductant is provided to the other NOx trap so as to produce ammonia that is also directed to the SCR catalyst system. An exhaust system implementing the method of the invention is also provided.
摘要翻译： 一种通过在两个贫NOx捕集器之间交替排出废气来操作的车辆排气中的NOx的方法，并将排出的废气引导到下游SCR催化剂系统。 虽然排气主要流过其中一个贫NOx捕集器，但是还原剂被提供给另一个NOx捕集器，以产生也导向SCR催化剂系统的氨。 还提供了实现本发明的方法的排气系统。
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