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    Compositions for abatement of volatile organic compounds and apparatus and methods using the same
    1.
    发明授权
    Compositions for abatement of volatile organic compounds and apparatus and methods using the same 有权
    减少挥发性有机化合物的组合物及其使用方法

    公开(公告)号：US06319484B1

    公开(公告)日：2001-11-20

    申请号：US09460924

    申请日：1999-12-14

    申请人： Lawrence Shore ,  Robert J. Farrauto ,  Michel Deeba ,  Jordan K. Lampert ,  Ronald M. Heck

    发明人： Lawrence Shore ,  Robert J. Farrauto ,  Michel Deeba ,  Jordan K. Lampert ,  Ronald M. Heck

    IPC分类号： B01J802

    CPC分类号： B01D53/0407 ,  B01D53/8668 ,  B01D53/869 ,  B01D53/885 ,  B01D2253/108 ,  B01D2253/308 ,  B01D2257/708 ,  B01D2259/40088 ,  F24C15/205

    摘要： A composition for abatement of airborne pollution by volatile organic compounds (“VOCs”) has an upstream composition which contains a protective adsorbent, e.g., Y zeolite, which is effective for adsorbing large VOC molecules, e.g., toluene, and a protective oxidation catalyst intimately intermingled therewith. The downstream composition contains a second adsorbent, e.g., a silver-containing ZSM-5, which is effective for adsorbing relatively smaller VOC molecules, e.g., propylene, and a second oxidation catalyst intimately intermingled therewith. Oxidation of VOCs while they are still retained on the adsorbents is promoted at temperatures lower than would be required if the VOCs were desorbed into the gaseous phase. Apparatus is provided including a first contact member (24) coated with the upstream composition and positioned upstream of a second contact member (32) coated with the downstream composition. A heat exchanger (22) equipped with a temperature control device (40) is positioned upstream of both contact members to vary the treatment temperature between an adsorption temperature range and a higher, oxidation temperature range, both lying within an operating temperature range of from about 20 to 500° C.

    摘要翻译： 用于减少挥发性有机化合物（“VOC”）的空气污染的组合物具有上游组合物，其含有保护性吸附剂，例如Y沸石，其对于吸附大的VOC分子（例如甲苯）和保护性氧化催化剂是有效的 与之混合 下游组合物包含第二吸附剂，例如含银ZSM-5，其对于吸附相对较小的VOC分子（例如丙烯）和与其紧密混合的第二氧化催化剂是有效的。 当VOCs仍然保留在吸附剂上时，VOC的氧化在低于如果VOC被解吸到气相中所需的温度下被促进。 提供了包括涂覆有上游组合物并位于涂覆有下游组合物的第二接触构件（32）的上游的第一接触构件（24）的设备。 配备有温度控制装置（40）的热交换器（22）位于两个接触构件的上游，以改变吸附温度范围和更高的氧化温度范围之间的处理温度，两者处于约 20〜500℃

    Catalyzed hydrocarbon trap material and method of making the same
    2.
    发明授权
    Catalyzed hydrocarbon trap material and method of making the same 失效
    催化烃陷阱材料及其制备方法

    公开(公告)号：US6074973A

    公开(公告)日：2000-06-13

    申请号：US45582

    申请日：1998-03-20

    申请人： Jordan K. Lampert ,  Michel Deeba ,  Robert J. Farrauto

    发明人： Jordan K. Lampert ,  Michel Deeba ,  Robert J. Farrauto

    IPC分类号： B01D53/94 ,  B01J29/068 ,  B01J29/04

    CPC分类号： B01D53/945 ,  B01J29/068 ,  B01D2255/1021 ,  B01D2255/104 ,  B01D2255/912 ,  Y02T10/22 ,  Y10S95/902

    摘要： A catalyzed hydrocarbon trap material washcoat (20) used in a trap (10), which may be placed downstream of a conventional catalyst member (28), is useful for treating internal combustion engine (22) exhaust. Trap (10) traps hydrocarbons during cold operation periods and releases them for oxidation during higher-temperature operating periods. The material comprises palladium and silver dispersed on a high surface area metal oxide support and a zeolite material such as one or more of ZSM-5, Beta, Y, and other suitable zeolites. The trap material is efficiently made by combining in a single vessel the zeolite, the metal oxide support, and aqueous solutions of a palladium compound and a silver compound. Surprisingly, the intimate combination of silver with the palladium does not adversely affect catalytic efficiency of the palladium and provides advantageous results in enhancing catalytic oxidation of hydrocarbons desorbed from the trap (10) and coke which forms thereon.

    摘要翻译： 用于捕集器（10）中的催化烃阱材料修补基面涂层（20）可用于处理内燃机（22）排气，其可以放置在常规催化剂构件（28）的下游。 陷阱（10）在冷运行期间捕获碳氢化合物，并在较高温度运行期间释放它们以进行氧化。 该材料包括分散在高表面积金属氧化物载体上的钯和银和沸石材料，例如ZSM-5，β，Y和其它合适的沸石中的一种或多种。 捕集材料通过在单个容器中组合沸石，金属氧化物载体和钯化合物和银化合物的水溶液而有效地制备。 令人惊奇的是，银与钯的紧密组合对钯的催化效率没有不利影响，并且提供了有利的结果，从而增强了从捕集器（10）和其上形成的焦炭脱附的烃的催化氧化。

    Method for using a regenerable catalyzed trap
    3.
    发明授权
    Method for using a regenerable catalyzed trap 失效
    使用可再生催化陷阱的方法

    公开(公告)号：US5792436A

    公开(公告)日：1998-08-11

    申请号：US645301

    申请日：1996-05-13

    申请人： Jennifer S. Feeley ,  Robert J. Farrauto ,  Michel Deeba ,  Jordan K. Lampert

    发明人： Jennifer S. Feeley ,  Robert J. Farrauto ,  Michel Deeba ,  Jordan K. Lampert

    IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J23/42 ,  B01J23/63 ,  B01J23/656 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  B01D53/56 ,  B01D53/75

    CPC分类号： F01N3/085 ,  B01D53/8609 ,  B01D53/8671 ,  B01D53/9431 ,  F01N3/0814 ,  F01N3/0871 ,  B01D2257/00 ,  B01D2257/302 ,  F01N2250/12 ,  F01N2330/06 ,  F01N2570/14 ,  F01N2610/03

    摘要： A method of at least periodically removing from a lean gaseous stream a sorbable component such as SO.sub.x includes passing the gaseous stream through a trap member having an oxidation catalyst combined with a sorbent material at a temperature within the sorbing temperature range of the sorbent material. The sorbed component is periodically removed by introducing a combustible component into the gaseous stream and oxidizing it on the trap member to thermally desorb the sorbed component. The amount of combustible component introduced is limited to maintain the gaseous stream composition lean, but is sufficient to increase the surface temperature of at least part of the trap member to above the bulk temperature of the gaseous stream. Sorbing and desorbing periods are alternated and a composition and an apparatus to carry out the process is provided.

    摘要翻译： 至少周期性地从贫气流中除去可吸收组分如SOx的方法包括使气流通过具有与吸附剂材料组合的氧化催化剂的捕集构件，所述氧化催化剂在吸附剂材料的吸附温度范围内。 通过将可燃组分引入气流中并在捕集构件上氧化吸附组分以热解吸附吸附的组分来定期除去吸附的组分。 引入的可燃组分的量被限制以保持气流组合物变稀，但足以使至少部分捕集构件的表面温度升至高于气流体积的温度。 曳引和解吸时间是交替的，并且提供了一个组合物和一个执行该过程的装置。