公开(公告)号：US5328672A

公开(公告)日：1994-07-12

申请号：US874315

申请日：1992-04-27

申请人： Clifford Montreuil ,  Haren S. Gandhi ,  Mohinder S. Chattha

发明人： Clifford Montreuil ,  Haren S. Gandhi ,  Mohinder S. Chattha

IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J29/072 ,  B01J29/10 ,  B01D47/00 ,  B01J8/02 ,  C01B21/00 ,  C01B31/18

CPC分类号： B01D53/945 ,  B01J29/072 ,  Y02T10/22

摘要： A dual-phase zeolite having a transition metal-containing zeolite phase and a transition metal-containing oxide phase. The catalytic material may be an intimate mixture of a phase-layered structure of a first phase constituted preferably of a copper-containing high silica zeolite and a second phase constituted of copper-containing zirconia.Methods are also disclosed for making a single-stage catalyst for removing NO.sub.x and HC at high efficiency in an oxygen-rich automotive exhaust gas, and for treating the exhaust gas with the dual-phase catalyst above.

公开(公告)号：US5155077A

公开(公告)日：1992-10-13

申请号：US753780

申请日：1991-09-03

申请人： Clifford Montreuil ,  Haren S. Gandhi ,  Mohinder S. Chattha

发明人： Clifford Montreuil ,  Haren S. Gandhi ,  Mohinder S. Chattha

IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J29/072 ,  B01J29/10

CPC分类号： B01D53/945 ,  B01J29/072 ,  Y02T10/22

摘要： A dual-phase zeolite having a transition metal-containing zeolite phase and a transition metal-containing oxide phase. The catalytic material may be an intimate mixture of a phase-layered structure of a first phase constituted preferably of a copper-containing high silica zeolite and a second phase constituted of copper-containing zirconia.Methods are also disclosed for making a single-stage catalyst for removing NO.sub.x and HC at high efficiency in an oxygen-rich automotive exhaust gas, and for treating the exhaust gas with the dual-phase catalyst above.

摘要翻译： 具有含过渡金属的沸石相和含过渡金属的氧化物相的双相沸石。 催化材料可以是优选由含铜高硅石沸石构成的第一相的相层结构和由含铜氧化锆构成的第二相的紧密混合物。 还公开了制造用于富氧汽车废气中高效除去NOx和HC的单级催化剂，以及用上述双相催化剂处理废气的方法。

公开(公告)号：US07291576B2

公开(公告)日：2007-11-06

申请号：US10748594

申请日：2003-12-30

申请人： Robert McCabe ,  Woosang Chun ,  George Graham ,  Clifford Montreuil ,  Brendan Carberry ,  Albert Chigapov ,  Alexei Dubkov

发明人： Robert McCabe ,  Woosang Chun ,  George Graham ,  Clifford Montreuil ,  Brendan Carberry ,  Albert Chigapov ,  Alexei Dubkov

IPC分类号： B01J21/00 ,  B01J23/00 ,  B01J23/32 ,  B21D51/16 ,  B01D50/00

CPC分类号： B01D53/8609 ,  B01D53/9422 ,  B01D53/949 ,  B01D2255/102 ,  B01D2255/2061 ,  B01D2255/2066 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2258/012 ,  B01J20/0237 ,  B01J20/06 ,  B01J20/3234 ,  Y10T29/49345

摘要： The present invention provides a regenerable catalyst composition suitable for entrapping SOx. The composition of the invention comprises a copper oxide having the formula (Cu/(A oxide) where A oxide is SiO2, Zr—SiO2, Al2O3, TiO2—Al2O3, ZrO2 and In2O3 or mixtures thereof. Copper loading may vary from about 10 to 60 mol % and is preferably about 25 mol %. The catalyst composition adsorbs SOx as metal sulfate under lean conditions and desorbs accumulated SOx as SO2 under rich conditions. Such reversible SOx trap are able to operate under conventional NOx trap operating conditions to prevent sulfur poisoning of the NOx trap. Furthermore, these traps may be regenerated under rich conditions at 300-450° C. In another embodiment of the present invention, an irreversible SOx trap capable of collecting SOx under lean conditions is provided. The traps of this embodiment include praseodymia, zirconia-praseodymia and mixed manganese-yttria and mixtures thereof.

摘要翻译： 本发明提供了适用于捕集SO x x的可再生催化剂组合物。 本发明的组合物包含具有式（Cu /（氧化物））的氧化铜，其中A氧化物为SiO 2，Zr-SiO 2，Al 2 3/3，TiO 2，Al 2 O 3，ZrO 2，N 3， 铜和负载可以在约10至60mol％之间变化，优选约25mol％，催化剂组合物吸附SO 3， 在贫条件下作为金属硫酸盐，在浓条件下，SO 2 SO 2作为SO 2 SO 2解吸，这种可逆的SO x X < 捕集阱能够在常规的捕集阱操作条件下进行操作，以防止NO x陷阱的硫中毒。此外，这些捕集阱可以在富含条件下在300-450 在本发明的另一个实施方案中，提供了能够在稀薄条件下收集SO x的不可逆SO 2捕集阱，该实施方案的捕集阱包括脯氨酸，z 氧化镨和混合锰 - 氧化钇及其混合物。

公开(公告)号：US20050145827A1

公开(公告)日：2005-07-07

申请号：US10748594

申请日：2003-12-30

申请人： Robert McCabe ,  Woosang Chun ,  George Graham ,  Clifford Montreuil ,  Brendan Carberry ,  Albert Chigapov ,  Alexei Dubkov

发明人： Robert McCabe ,  Woosang Chun ,  George Graham ,  Clifford Montreuil ,  Brendan Carberry ,  Albert Chigapov ,  Alexei Dubkov

IPC分类号： B01D53/86 ,  B01D53/94 ,  C09K3/00

CPC分类号： B01D53/8609 ,  B01D53/9422 ,  B01D53/949 ,  B01D2255/102 ,  B01D2255/2061 ,  B01D2255/2066 ,  B01D2255/20715 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2258/012 ,  B01J20/0237 ,  B01J20/06 ,  B01J20/3234 ,  Y10T29/49345

摘要： The present invention provides a regenerable catalyst composition suitable for entrapping SOx. The composition of the invention comprises a copper oxide having the formula (Cu/(A oxide) where A oxide is SiO2, Zr—SiO2, A12O3, TiO2—Al2O3, ZrO2 and In2O3 or mixtures thereof. Copper loading may vary from about 10 to 60 mol % and is preferably about 25 mol %. The catalyst composition adsorbs SOx as metal sulfate under lean conditions and desorbs accumulated SOx as SO2 under rich conditions. Such reversible SOx trap are able to operate under conventional NOx trap operating conditions to prevent sulfur poisoning of the NOx trap. Furthermore, these traps may be regenerated under rich conditions at 300-450° C. In another embodiment of the present invention, an irreversible SOx trap capable of collecting SOx under lean conditions is provided. The traps of this embodiment include praseodymia, zirconia-praseodymia and mixed manganese-yttria and mixtures thereof.

摘要翻译： 本发明提供了适用于捕集SO x x的可再生催化剂组合物。 本发明的组合物包含具有式（Cu /（氧化物））的氧化铜，其中A氧化物为SiO 2，Zr-SiO 2，Al 2 3/3，TiO 2，Al 2 O 3，ZrO 2，N 3， 铜和负载可以在约10至60mol％之间变化，优选约25mol％，催化剂组合物吸附SO 3， 在贫条件下作为金属硫酸盐，在浓条件下，SO 2 SO 2作为SO 2 SO 2解吸，这种可逆的SO x X < 捕集阱能够在常规的捕集阱操作条件下进行操作，以防止NO x陷阱的硫中毒。此外，这些捕集阱可以在富含条件下在300-450 在本发明的另一个实施方案中，提供了能够在稀薄条件下收集SO x的不可逆SO 2捕集阱，该实施方案的捕集阱包括脯氨酸，z 氧化镨和混合锰 - 氧化钇及其混合物。

公开(公告)号：US20050112045A1

公开(公告)日：2005-05-26

申请号：US10904444

申请日：2004-11-10

申请人： Clifford Montreuil ,  Joseph Theis

发明人： Clifford Montreuil ,  Joseph Theis

IPC分类号： F01N3/035 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  F01N13/04 ,  B01J8/02 ,  C01B21/00 ,  C01B23/00 ,  C01B25/00 ,  C01G28/00 ,  C01G30/00 ,  C01B31/00 ,  C01B33/00 ,  C01B35/00 ,  F01N3/00

CPC分类号： F01N3/2066 ,  F01N3/035 ,  F01N3/28 ,  F01N3/2882 ,  F01N13/009 ,  F01N13/011 ,  F01N13/017 ,  F01N2250/02 ,  F01N2610/02 ,  Y02A50/2325 ,  Y02C20/10 ,  Y02T10/24

摘要： The present invention discloses a method for reducing NOx in exhaust gases of an internal combustion engine. The purpose of this invention is to convert engine out NOx (approximately 90% NO in diesel exhaust) into roughly a 50:50 mixture of NO and NO2, while simultaneously oxidizing engine-out hydrocarbons which interfere with the reduction of NOx by urea or ammonia. The present invention demonstrates that a 50:50 blend of NO and NO2 is reduced more rapidly and with higher efficiency than a gas stream which is predominantly NO. In addition, catalyst in an engine exhaust that is a 50:50 mixture of NO and NO2 is far more resistant to hydrothermal deterioration than using NO alone. In another embodiment of the present invention, a vehicle exhaust system utilizing the method of the present invention is provided.

摘要翻译： 本发明公开了一种减少内燃机排气中的NO x的方法。 本发明的目的是将发动机转化为NO x NO x（大约90％的柴油机废气中的NO）转化成大约50:50的NO和NO 2 2的混合物，同时 氧化发动机排出的碳氢化合物，其干扰尿素或氨的还原NO x。 本发明表明，与主要为NO的气流相比，NO和NO 2 2的50:50共混物被更快地和更高的效率地降低。 此外，作为NO和NO 2 2的50:50混合物的发动机排气中的催化剂比单独使用NO更能抵抗水热退化。 在本发明的另一实施例中，提供了利用本发明的方法的车辆排气系统。

公开(公告)号：US5275795A

公开(公告)日：1994-01-04

申请号：US928393

申请日：1992-08-12

申请人： Clifford Montreuil ,  Haren S. Gandhi ,  Mohinder S. Chattha

发明人： Clifford Montreuil ,  Haren S. Gandhi ,  Mohinder S. Chattha

IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J29/072 ,  B01J29/10 ,  B01D47/00 ,  B01D53/34 ,  B01J8/00 ,  C01B21/00

CPC分类号： B01D53/945 ,  B01J29/072 ,  Y02T10/22

摘要： A dual-phase zeolite having a transition metal-containing zeolite phase and a transition metal-containing oxide phase. The catalytic material may be an intimate mixture of a phase-layered structure of a first phase constituted preferably of a copper-containing high silica zeolite and a second phase constituted of copper-containing zirconia.Methods are also disclosed for making a single-stage catalyst for removing NO.sub.x and HC at high efficiency in an oxygen-rich automotive exhaust gas, and for treating the exhaust gas with the dual-phase catalyst above.

摘要翻译： 具有含过渡金属的沸石相和含过渡金属的氧化物相的双相沸石。 催化材料可以是优选由含铜高硅石沸石构成的第一相的相层结构和由含铜氧化锆构成的第二相的紧密混合物。 还公开了制造用于富氧汽车废气中高效除去NOx和HC的单级催化剂，以及用上述双相催化剂处理废气的方法。