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    Metallic monolith and plates for the assembly thereof
    1.
    发明授权
    Metallic monolith and plates for the assembly thereof 失效
    用于组装的金属整料和板

    公开(公告)号：US5681538A

    公开(公告)日：1997-10-28

    申请号：US381804

    申请日：1995-02-01

    申请人： Shiang Sung ,  John K. Hochmuth

    发明人： Shiang Sung ,  John K. Hochmuth

    IPC分类号： B23P15/26 ,  B01J19/24 ,  B01J35/04 ,  F01N3/28 ,  F28D9/00 ,  F28F3/00

    CPC分类号： B01J19/249 ,  B01J35/04 ,  F01N3/2817 ,  F28D9/0037 ,  B01J2219/2453 ,  B01J2219/2474 ,  B01J2219/2479 ,  B01J2219/2493 ,  B01J2219/2497

    摘要： A monolith suitable for use as a heat exchanger or as a carrier for a catalyst member is assembled from a plurality of plates (10, 10', 410) that are mounted one atop the next. The plates are generally rectangular and define a central baffle portion (12, 412) having a pair of substantially straight, parallel sides (14, 414) and having attached to the baffle portion at the ends thereof a support flange (18, 418) which is bendable upward into a configuration that enables it to support a second plate in spaced, parallel relation to the first plate, and anchor flanges (20, 420) that are bendable downward, to seal the corners of the monolith and, optionally, to engage the support flanges of one or more underlying plates.

    摘要翻译： 适合用作热交换器或用作催化剂构件的载体的整体由多个安装在下一个顶板上的板（10,10'，410）组装。 板通常是矩形的并且限定了具有一对基本上直的平行的侧面（14,414）的中心挡板部分（12,412），并且在其端部处连接到挡板部分的支撑凸缘（18,418），支撑凸缘 可向上弯曲成使得其能够以与第一板间隔开平行的关系支撑第二板，以及可向下弯曲的锚定凸缘（20,420），以密封整料的角部，并且可选地接合 一个或多个底板的支撑凸缘。

    Air injection strategies for effectively burning hydrocarbons released from a hydrocarbon trap
    3.
    发明授权
    Air injection strategies for effectively burning hydrocarbons released from a hydrocarbon trap 失效
    有效燃烧碳氢化合物捕集阱释放的碳氢化合物的空气注入策略

    公开(公告)号：US6000217A

    公开(公告)日：1999-12-14

    申请号：US368685

    申请日：1995-01-04

    申请人： John K. Hochmuth

    发明人： John K. Hochmuth

    IPC分类号： F01N3/08 ,  F01N3/22 ,  F01N3/24 ,  F01N3/28 ,  F01N13/02 ,  F01N3/00

    CPC分类号： F01N3/0835 ,  F01N13/009 ,  F01N3/0871 ,  F01N3/22 ,  F01N3/222 ,  F01N3/2889 ,  F01N2240/02 ,  F01N2250/12 ,  F01N2430/06 ,  Y02T10/20 ,  Y02T10/22

    摘要： An exhaust gas treatment method for an exhaust system that includes a hydrocarbon trap (16) disposed upstream of a downstream catalyst zone comprising a catalyst effective at least for the oxidation of unburned hydrocarbons, in which air is added to the exhaust gas stream in an amount that provides a stoichiometric air/fuel balance in the exhaust gas entering the downstream catalyst zone. The air may be added at any point upstream of the downstream catalyst zone, but optimum results are obtained when air is added between the trap (16) and the downstream catalyst zone. The addition of air can be controlled by the output of a sensor (26) that measures the air/fuel ratio of the exhaust gas, disposed downstream of the trap (16), or by the output of a thermocouple (18) disposed upstream of the trap.

    摘要翻译： 一种用于排气系统的废气处理方法，其包括设置在下游催化剂​​区域的上游的烃陷阱（16），该下游催化剂​​区域包括至少对氧化未燃烧的烃有效的催化剂，其中将空气以一定量添加到废气流中 其在进入下游催化剂​​区域的废气中提供化学计量的空气/燃料平衡。 空气可以在下游催化剂​​区域的上游的任何点加入，但是当在捕集器（16）和下游催化剂​​区域之间添加空气时，可获得最佳结果。 空气的添加可以通过传感器（26）的输出来控制，传感器（26）测量设置在捕集器（16）下游的废气的空气/燃料比，或者通过设置在捕集器16的上游的热电偶（18）的输出来控制。 陷阱。

    Enhanced NOx trap having increased durability
    4.
    发明授权
    Enhanced NOx trap having increased durability 失效
    增强的NOx捕集器具有增加的耐久性

    公开(公告)号：US06727202B2

    公开(公告)日：2004-04-27

    申请号：US09933586

    申请日：2001-08-21

    申请人： Michel Deeba ,  Shau-Lin F. Chen ,  John K. Hochmuth ,  Patrick L. Burk ,  Xinyi Wei

    发明人： Michel Deeba ,  Shau-Lin F. Chen ,  John K. Hochmuth ,  Patrick L. Burk ,  Xinyi Wei

    IPC分类号： B01J3702

    CPC分类号： F01N3/0842 ,  B01D53/9431 ,  B01J23/34 ,  B01J23/6562 ,  B01J23/92 ,  B01J37/0201 ,  B01J37/0242 ,  B01J37/0248 ,  F01N3/0814 ,  F01N2250/12 ,  F01N2370/02 ,  F01N2370/22 ,  Y02C20/10 ,  Y02T10/24

    摘要： A catalytic trap disposed in an exhaust passage of an internal combustion engine which is operated with periodic alternations between lean and stoichiometric or rich conditions, for abatement of NOx in an exhaust gas stream which is generated by the engine. The trap comprises a catalytic trap material and a refractory carrier member on which the catalytic trap material is disposed. The catalytic trap material comprises: (i) a refractory metal oxide support; (ii) a catalytic component effective for promoting the reduction of NOx under stoichiometric or rich conditions; and (iii) a NOx sorbent effective for adsorbing the NOx under lean conditions and desorbing and reducing the NOx to nitrogen under stoichiometric or rich conditions. The NOx sorbent comprises a metal oxide selected from the group consisting of one or alkali metal oxides, alkaline earth metal oxides and mixtures of one or more alkali metal oxides and alkaline earth metal oxides. The manganese component is selected from the group consisting of: (1) a manganese oxide, (2) a mixed oxide of manganese and a transition metal and/or a rare earth metal, (3) a compound of an alkali metal and a manganese oxide, (4) a compound of an alkaline earth metal and a manganese oxide and (5) mixtures of the foregoing oxides and compounds.

    摘要翻译： 设置在内燃机的排气通道中的催化捕集器，其在稀薄和化学计量或富含条件之间的周期性变化下操作，以减少由发动机产生的废气流中的NOx。 捕集器包括催化捕集材料和其上设置有催化捕集材料的耐火载体构件。 催化捕集材料包括：（i）难熔金属氧化物载体; （ii）在化学计量或富含条件下有效促进NOx还原的催化组分; 和（iii）有效地在稀薄条件下吸附NOx的NOx吸附剂，并且在化学计量或富含条件下将NOx解吸并还原成氮。 NOx吸附剂包括选自一种或碱金属氧化物，碱土金属氧化物和一种或多种碱金属氧化物和碱土金属氧化物的混合物的金属氧化物。 锰成分选自：（1）锰氧化物，（2）锰与过渡金属和/或稀土金属的混合氧化物，（3）碱金属和锰的化合物 氧化物，（4）碱土金属和氧化锰的化合物和（5）上述氧化物和化合物的混合物。

    Combustion process using catalysts containing binary oxides
    5.
    发明授权
    Combustion process using catalysts containing binary oxides 失效
    燃烧过程中使用含二元氧化物的催化剂

    公开(公告)号：US5378142A

    公开(公告)日：1995-01-03

    申请号：US684409

    申请日：1991-04-12

    申请人： Teresa Kennelly ,  John K. Hochmuth ,  Ting C. Chou ,  Robert J. Farrauto

    发明人： Teresa Kennelly ,  John K. Hochmuth ,  Ting C. Chou ,  Robert J. Farrauto

    IPC分类号： B01J23/63 ,  B01J23/96 ,  B01J38/12 ,  C01G55/00 ,  F23C13/00 ,  F23D3/40 ,  B01J23/10 ,  B01J23/56

    CPC分类号： B01J38/12 ,  B01J23/63 ,  B01J23/96

    摘要： A catalyst composition containing one or more binary oxides of palladium and rare earth metal such as Ce, La, Nd, Pr and/or Sm. The catalyst composition is used for the catalytic combustion of gaseous combustion mixtures of oxygen and carbonaceous fuels such as methane, e.g., a natural gas/air combustion mixture. Specific preferred binary oxides may be, for example, M.sub.2 O.sub.3.sup.. PdO (e.g., La.sub.2 O.sub.3.sup.. PdO) or 2M.sub.2 O.sub.3.sup.. PdO, wherein in each case M Is La, Nd or Sm. A process of combusting gaseous carbonaceous fuels includes contacting a catalyst as described above under combustion conditions, e.g., 925.degree. C. to 1650.degree. C. and 1 to 20 atmospheres pressure, to carry out sustained combustion of the combustion mixture, including catalytically supported thermal combustion. Regeneration of over-temperatured M.sub.2 O.sub.3.sup.. PdO catalyst is also provided for.

    摘要翻译： 含有一种或多种钯和稀土金属如Ce，La，Nd，Pr和/或Sm的二元氧化物的催化剂组合物。 催化剂组合物用于氧气和碳质燃料如甲烷的气体燃烧混合物的催化燃烧，例如天然气/空气燃烧混合物。 特别优选的二元氧化物可以是例如M 2 O 3 PdO（例如La 2 O 3·P 10）或2M 2 O 3·P 10，其中在每种情况下M是La，Nd或Sm。 燃烧气态含碳燃料的方法包括在燃烧条件例如925℃至1650℃和1至20大气压的压力下使如上所述的催化剂接触，以进行燃烧混合物的持续燃烧，包括催化负载的热 燃烧。 还提供了过温度M2O3.PdO催化剂的再生。

    Catalytic trap with potassium component and method of using the same
    6.
    发明授权
    Catalytic trap with potassium component and method of using the same 有权
    具有钾成分的催化捕集器及其使用方法

    公开(公告)号：US06497848B1

    公开(公告)日：2002-12-24

    申请号：US09643457

    申请日：2000-08-22

    申请人： Michel Deeba ,  Uwe Dahle ,  Stefan Brandt ,  John K. Hochmuth

    发明人： Michel Deeba ,  Uwe Dahle ,  Stefan Brandt ,  John K. Hochmuth

    IPC分类号： B01D5394

    CPC分类号： B01J35/0006 ,  B01D53/9413 ,  B01J23/58 ,  B01J23/63 ,  B01J37/0242 ,  B01J37/0244 ,  B01J37/0248 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N2330/00 ,  F01N2330/06 ,  F01N2610/03

    摘要： A catalytic trap (10, 110) effective for conversion of NOx in an exhaust gas stream is inert to high-temperature reaction with basic oxygenated compounds of lithium, sodium or potassium. The catalytic trap may be substantially free of silica components and may include a catalytic trap material (20, 120) which contains a refractory metal oxide support, e.g., alumina, having dispersed thereon a catalytic component, such as a platinum group metal catalytic component, and a NOx sorbent comprised of one or more of the basic oxygenated compounds. The catalytic trap material is coated onto a suitable carrier member (12, 112), such as one made from stainless steel, titanium, alumina, titania, zirconia or silica-leached cordierite. A method of treating a NOx-containing gas stream involves maintaining the gas stream in alternating periods of (1) lean and (2) rich or stoichiometric conditions and contacting the gas stream with the catalytic trap under conditions in which NOx is adsorbed during periods of lean operation and released and reduced to nitrogen during periods of rich operation.

    摘要翻译： 对废气流中的NOx转化有效的催化捕集器（10,110）对与锂，钠或钾的碱性氧化化合物的高温反应是惰性的。 催化捕集器可以基本上不含二氧化硅组分，并且可以包括催化捕集材料（20,120），催化捕集材料包含难熔金属氧化物载体，例如在其上分散有催化组分如铂族金属催化组分的氧化铝， 和由一种或多种碱性氧化化合物组成的NOx吸附剂。 将催化捕集材料涂覆到合适的载体构件（12,112）上，例如由不锈钢，钛，氧化铝，二氧化钛，氧化锆或二氧化硅浸提的堇青石制成的载体构件。 一种处理含NO x的气流的方法包括将气流保持在（1）贫和（2）富集或化学计量条件的交替时段内，并且在气体流与催化捕集器接触的条件下， 精益营运，丰富经营期间释放并减少氮。