公开(公告)号：US07950223B2

公开(公告)日：2011-05-31

申请号：US12084961

申请日：2006-11-13

申请人： Norbert Breuer ,  Markus Gloeckle ,  Buenyamin Duru ,  Martin Bohnet

发明人： Norbert Breuer ,  Markus Gloeckle ,  Buenyamin Duru ,  Martin Bohnet

IPC分类号： F01N3/00

CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/9481 ,  B01D2251/2067 ,  F01N13/009 ,  F01N2240/02 ,  F01N2240/25 ,  F01N2240/28 ,  F01N2250/12 ,  F01N2330/02 ,  F01N2330/06 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/11 ,  Y02A50/2344 ,  Y02T10/24

摘要： A method of and apparatus for controlling the reducing agent in an exhaust gas aftertreatment system of an internal combustion engine with an exhaust gas duct in which an SCR catalyst is provided in the direction of flow of the exhaust gas. A reducing agent-generating system (RGS) comprising an NOx and CO/H2 production unit as well as a combined NOx storage/ammonia production unit in the standard gas path of the reducing agent-generating system. Ammonia is delivered upstream from the SCR catalyst to reduce nitrogen oxides, starting materials for producing the ammonia being fed at least in part to the NOx and CO/H2 production unit via a fuel inlet and an air inlet. An AGC matrix of the combined NOx storage/ammonia production unit is cooled at least intermittently by means of an inner and/or outer cooling device. Cooling results in the longest possible section of the running length (L) and thus the largest possible volume percent of the AGX matrix within the combined NOx storage/ammonia production unit having an optimum temperature range regarding the highest possible ammonia yield, which overall contributes to a great ammonia production rate.

摘要翻译： 一种在具有废气管道的内燃机的废气后处理系统中控制还原剂的方法和装置，其中在废气流动方向上设置有SCR催化剂。 一种还原剂生成系统（RGS），其包括NOx和CO / H 2生产单元，以及在还原剂产生系统的标准气体路径中的组合的NOx储存/氨生产单元。 氨在SCR催化剂的上游被输送以还原氮氧化物，用于产生氨的起始材料至少部分地通过燃料入口和空气入口供给至NOx和CO / H 2生产单元。 组合的NOx储存/氨生产单元的AGC矩阵通过内部和/或外部冷却装置至少间歇地冷却。 冷却导致运行长度（L）的最长可能部分，因此在组合的NOx储存/氨生产单元内的AGX基质的最大体积百分比具有关于最高可能的氨产量的最佳温度范围，其总体上有助于 氨生产率很高。

公开(公告)号：US20090211230A1

公开(公告)日：2009-08-27

申请号：US12084961

申请日：2006-11-13

申请人： Norbert Breuer ,  Markus Gloeckle ,  Buenyamin Duru ,  Martin Bohnet

发明人： Norbert Breuer ,  Markus Gloeckle ,  Buenyamin Duru ,  Martin Bohnet

IPC分类号： F01N3/20

CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/9481 ,  B01D2251/2067 ,  F01N13/009 ,  F01N2240/02 ,  F01N2240/25 ,  F01N2240/28 ,  F01N2250/12 ,  F01N2330/02 ,  F01N2330/06 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/11 ,  Y02A50/2344 ,  Y02T10/24

摘要： A method of and apparatus for controlling the reducing agent in an exhaust gas aftertreatment system of an internal combustion engine with an exhaust gas duct in which an SCR catalyst is provided in the direction of flow of the exhaust gas. A reducing agent-generating system (RGS) comprising an NOx and CO/H2 production unit as well as a combined NOx storage/ammonia production unit in the standard gas path of the reducing agent-generating system. Ammonia is delivered upstream from the SCR catalyst to reduce nitrogen oxides, starting materials for producing the ammonia being fed at least in part to the NOx and CO/H2 production unit via a fuel inlet and an air inlet. An AGC matrix of the combined NOx storage/ammonia production unit is cooled at least intermittently by means of an inner and/or outer cooling device. Cooling results in the longest possible section of the running length (L) and thus the largest possible volume percent of the AGX matrix within the combined NOx storage/ammonia production unit having an optimum temperature range regarding the highest possible ammonia yield, which overall contributes to a great ammonia production rate.

摘要翻译： 一种在具有废气管道的内燃机的废气后处理系统中控制还原剂的方法和装置，其中在废气流动方向上设置有SCR催化剂。 一种还原剂生成系统（RGS），其包括NOx和CO / H 2生产单元，以及在还原剂产生系统的标准气体路径中的组合的NOx储存/氨生产单元。 氨在SCR催化剂的上游被输送以还原氮氧化物，用于产生氨的起始材料至少部分地通过燃料入口和空气入口供给至NOx和CO / H 2生产单元。 组合的NOx储存/氨生产单元的AGC矩阵通过内部和/或外部冷却装置至少间歇地冷却。 冷却导致运行长度（L）的最长可能部分，因此在组合的NOx储存/氨生产单元内的AGX基质的最大体积百分比具有关于最高可能的氨产率的最佳温度范围，其总体上有助于 氨生产率很高。

公开(公告)号：US08318103B2

公开(公告)日：2012-11-27

申请号：US12084950

申请日：2006-11-13

申请人： Markus Gloeckle ,  Martin Bohnet

发明人： Markus Gloeckle ,  Martin Bohnet

IPC分类号： B01D53/90 ,  B01D53/94 ,  C01C1/04

CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9481 ,  B01D2251/2062 ,  B01D2255/908 ,  B01D2259/818 ,  C01C1/086 ,  F01N3/0814 ,  F01N13/009 ,  F01N2240/25 ,  F01N2240/30 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2344 ,  Y02P20/52 ,  Y02T10/24

摘要： The invention relates to a catalyst arrangement in an exhaust gas after-treatment system of an internal combustion engine comprising an exhaust gas line in which an SCR catalyst is positioned in the direction of flow of the exhaust gas. A reducing agent production system has an NOx and CO/H2 production unit and a combined NOx storage/ammonia production unit in the standard gas-carrying path of the reducing agent production system which supplies ammonia as the reducing agent. The NOx and CO/H2 production unit is at least temporarily supplied via a fuel supply and an air supply with starting products for producing ammonia. The combined NOx storage/ammonia production unit has a plurality catalyst sections having different characteristic properties or functionalities, enabling a higher ammonia yield in the combined NOx storage/ammonia production unit. The catalyst formulations make it possible to adjust a temperature profile that additionally influences the ammonia production rate and contributes to higher ammonia yields.

摘要翻译： 本发明涉及一种内燃机废气后处理系统中的催化剂装置，其包括其中SCR催化剂沿废气流动方向定位的排气管线。 还原剂生产系统在还原剂生产系统的标准气体输送路径中具有供应氨作为还原剂的NOx和CO / H 2生产单元和组合的NOx储存/氨生产单元。 NO x和CO / H 2生产单元至少通过燃料供应和空气供应临时供应，生产用于生产氨的起始产品。 组合的NOx储存/氨生产单元具有多个具有不同特性或功能的催化剂部分，能够在组合的NOx储存/氨生产单元中产生更高的氨产率。 催化剂配方使得可以调节另外影响氨产生速率的温度分布，并有助于提高氨的产率。

公开(公告)号：US20090199550A1

公开(公告)日：2009-08-13

申请号：US12084950

申请日：2006-11-13

申请人： Markus Gloeckle ,  Martin Bohnet

发明人： Markus Gloeckle ,  Martin Bohnet

IPC分类号： F01N3/20 ,  F01N3/10

CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9481 ,  B01D2251/2062 ,  B01D2255/908 ,  B01D2259/818 ,  C01C1/086 ,  F01N3/0814 ,  F01N13/009 ,  F01N2240/25 ,  F01N2240/30 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2344 ,  Y02P20/52 ,  Y02T10/24

摘要： The invention relates to a catalyst arrangement in an exhaust gas after-treatment system of an internal combustion engine comprising an exhaust gas line in which an SCR catalyst is positioned in the direction of flow of the exhaust gas. A reducing agent production system has an NOx and CO/H2 production unit and a combined NOx storage/ammonia production unit in the standard gas-carrying path of the reducing agent production system which supplies ammonia as the reducing agent. The NOx and CO/H2 production unit is at least temporarily supplied via a fuel supply and an air supply with starting products for producing ammonia. The combined NOx storage/ammonia production unit has a plurality catalyst sections having different characteristic properties or functionalities, enabling a higher ammonia yield in the combined NOx storage/ammonia production unit. The catalyst formulations make it possible to adjust a temperature profile that additionally influences the ammonia production rate and contributes to higher ammonia yields.

摘要翻译： 本发明涉及一种内燃机废气后处理系统中的催化剂装置，其包括其中SCR催化剂沿废气流动方向定位的排气管线。 还原剂生产系统在还原剂生产系统的标准气体输送路径中具有供应氨作为还原剂的NOx和CO / H 2生产单元和组合的NOx储存/氨生产单元。 NO x和CO / H 2生产单元至少通过燃料供应和空气供应临时供应，生产用于生产氨的起始产品。 组合的NOx储存/氨生产单元具有多个具有不同特性或功能的催化剂部分，能够在组合的NOx储存/氨生产单元中产生更高的氨产率。 催化剂配方使得可以调节另外影响氨产生速率的温度分布，并有助于提高氨的产率。