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    Catalyst reactor for oxidizing carbon monoxide and hydrocarbons in gaseous stream
    1.
    发明授权
    Catalyst reactor for oxidizing carbon monoxide and hydrocarbons in gaseous stream 失效
    氧化一氧化碳和碳氢化合物在气体流中的催化反应器

    公开(公告)号：US3914377A

    公开(公告)日：1975-10-21

    申请号：US26967372

    申请日：1972-07-07

    Applicant: MOBIL OIL CORP

    Inventor： ANDERSON CONROY D ,  CARLSON DAVID W ,  OLECK STEPHEN M ,  STOVER WILLIAM A

    IPC: B01D53/94 ,  B01J23/89 ,  B01D53/34

    CPC classification number: B01D53/944 ,  B01J23/8926 ,  Y02A50/2341

    Abstract: A catalyst reactor system for reducing the amount of carbon monoxide and hydrocarbons in a gaseous stream which comprises a first bed consisting essentially of 7-20 weight percent copper oxide and 0.01-5 weight percent palladium, said copper oxide and palladium being co-impregnated on an inorganic oxide support comprising at least 50 percent by weight alumina and a second bed comprising 0.01-5 percent by weight palladium supported on a porous inorganic oxide support.

    Abstract translation: 一种用于减少气流中的一氧化碳和烃的量的催化剂反应器系统，其包括基本上由7-20重量％的氧化铜和0.01-5重量％的钯组成的第一床，所述氧化铜和钯共浸渍在 包含至少50重量％的氧化铝的无机氧化物载体和包含0.01-5重量％的负载在多孔无机氧化物载体上的钯的第二床。

    Catalyst composition for removing noxious components from a gaseous stream
    5.
    发明授权
    Catalyst composition for removing noxious components from a gaseous stream 失效
    用于从气候流中去除有害成分的催化剂组合物

    公开(公告)号：US3867309A

    公开(公告)日：1975-02-18

    申请号：US28359372

    申请日：1972-08-24

    Applicant: MOBIL OIL CORP

    Inventor： OLECK STEPHEN M ,  STOVER WILLIAM A

    IPC: B01D53/94 ,  B01J23/56 ,  B01J23/60 ,  B01J23/63 ,  B01J23/656 ,  B01J23/89 ,  B01J35/10 ,  F02B75/02 ,  B01J11/40 ,  B01J11/08

    CPC classification number: B01D53/945 ,  B01J23/56 ,  B01J23/60 ,  B01J23/63 ,  B01J23/6562 ,  B01J23/8906 ,  B01J35/10 ,  B01J35/1019 ,  B01J35/1061 ,  B01J35/1066 ,  F02B2075/027 ,  Y02T10/22

    Abstract: A highly active, stable and sulfur-resistant catalyst composition useful for substantially reducing the amount of carbon monoxide, hydrocarbons, nitrogen oxide and other noxious components in a gaseous stream is provided. Said catalyst composition comprises a specific refractory support material selected from the group consisting of (1) an alumina having a particle density of from about 0.3 to about 1.5 g/cc, a packed density of from about 0.2 to about 0.8 g/cc and a surface area of from about 10 to about 300 m2/g and (2) a monolithic ceramic having an external surface area of from about 100 to about 900 ft2/ft3, a bulk density of from about 10 to about 50 lb/ft3 and from about 2 to about 500 channels per square inch, said refractory support material having deposited thereon from about 0.01 to about 10 weight percent palladium and from about 0.05 to about 20 weight percent metal selected from the group consisting of rare earth, iron, manganese and zinc. The catalyst composition of this invention is effective at lower catalyst bed temperatures than other similar compositions, thus making it valuable when said gaseous stream is the exhaust effluent of an internal combustion engine during low-temperature operation, e.g. engine start-up. The catalyst composition also has excellent stability to aging in internal combustion engine exhaust effluent, even when the fuel to said engine contains up to 1000 ppm sulfur.

    Abstract translation: 提供了一种高活性，稳定和耐硫的催化剂组合物，其用于大幅减少气流中的一氧化碳，烃类，氮氧化物和其它有毒成分的量。 所述催化剂组合物包含特定的耐火载体材料，其选自（1）具有约0.3至约1.5g / cc的颗粒密度，约0.2至约0.8g / cc的填充密度和约0.2至约0.8g / cc的填充密度的氧化铝 表面积为约10至约300m 2 / g，（2）具有约100至约900ft 2 / ft 3的外表面积，约10至约50lb / ft 3的堆积密度和 约2至约500个通道/平方英寸，所述耐火载体材料沉积有约0.01至约10重量％的钯和约0.05至约20重量％的金属，所述金属选自稀土，铁，锰和锌 。 本发明的催化剂组合物在比其它类似组合物更低的催化剂床温度下是有效的，因此当所述气态物流是低温操作期间内燃机的废气流出物时，使其具有价值。 发动机启动。 即使当所述发动机的燃料含有高达1000ppm的硫时，催化剂组合物也对内燃机废气流出物的老化具有优异的稳定性。

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