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    Catalysts for the destruction of halogenated organics
    1.
    发明授权
    Catalysts for the destruction of halogenated organics 失效
    用于破坏卤代有机物的催化剂

    公开(公告)号：US5276249A

    公开(公告)日：1994-01-04

    申请号：US1398

    申请日：1993-01-06

    申请人： Howard L. Greene ,  Sougato Chatterjee

    发明人： Howard L. Greene ,  Sougato Chatterjee

    IPC分类号： A62D3/00 ,  A62D3/34 ,  A62D3/38 ,  A62D101/22 ,  B01D53/86 ,  B01J29/06 ,  B01J37/00 ,  C01B7/07

    CPC分类号： B01J37/0009 ,  B01D53/8662 ,  B01J29/061 ,  Y02C20/30

    摘要： A new class of metal-exchanged, metal-impregnated zeolite catalysts has been prepared for the oxidation of halogenated organics including chlorinated, fluorinated and chloro/fluoro hydrocarbons. These catalysts are supported or unsupported, comprising from 0 weight percent, hereinafter wt.%, to about 95 wt. % of a binder, from about 10 wt. % to about 95 wt. % of a metal-exchanged zeolite, and from about 0.2 wt. % to about 12 wt. % of an impregnating metal compound, said percentage being calculated as the metal loading on an oxide basis, where the metal in the metal-exchanged zeolite can be selected from the representative and illustrative group consisting of V, Cr, Co, Ni, Cu, Fe, Mo, and Mn and the impregnating metal compound can be selected from the representative and illustrative group consisting of compounds of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Mo, Pd, and Pt. A process for making the catalysts and a process for the oxidation of the halogenated organics are disclosed which occur at relatively low temperatures, from about 100.degree. C. to about 650.degree. C., and at pressures near atmospheric and for residence times from about 0.01 seconds to about 20 seconds.

    摘要翻译： 已经制备了一类新的金属交换的金属浸渍沸石催化剂，用于氧化卤代有机物，包括氯化，氟化和氯/氟代烃。 这些催化剂是负载或未负载的，包含0重量％，以下重量％，至约95重量％ ％的粘合剂，约10wt。 ％至约95wt。 ％的金属交换沸石和约0.2wt。 ％至约12wt。 ％的浸渍金属化合物，所述百分比计算为以氧化物为基准的金属负载量，其中金属交换的沸石中的金属可以选自V，Cr，Co，Ni，Cu， Fe，Mo和Mn，并且浸渍金属化合物可以选自由Ti，V，Cr，Mn，Fe，Co，Ni，Cu，Mo，Pd和Pt的化合物组成的代表性和示例性的组。 公开了制备催化剂的方法和卤化有机物的氧化方法，其发生在约100℃至约650℃的相对低的温度下，并且在接近大气压的压力下，停留时间为约0.01 秒至约20秒。

    Selective oxidation catalysts for halogenated organics
    3.
    发明授权
    Selective oxidation catalysts for halogenated organics 失效
    卤代有机物的选择性氧化催化剂

    公开(公告)号：US5457268A

    公开(公告)日：1995-10-10

    申请号：US144125

    申请日：1993-10-27

    申请人： Howard L. Greene ,  Balachandran Ramachandran ,  Sougato Chatterjee

    发明人： Howard L. Greene ,  Balachandran Ramachandran ,  Sougato Chatterjee

    IPC分类号： A62D3/00 ,  A62D3/38 ,  A62D101/22 ,  A62D101/28 ,  B01D53/86 ,  B01J19/00 ,  B01J29/06 ,  B01J29/08 ,  C01B7/07

    CPC分类号： A62D3/38 ,  B01D53/8662 ,  B01J29/061 ,  A62D2101/22 ,  A62D2101/28

    摘要： The invention relates to a process and a catalyst composition for the destruction of volatile organic compounds (VOCs). The process includes the step of contacting the VOCs with an oxygen-containing gas in the presence of a catalyst which is a metal-exchanged, metal-impregnated aluminosilicate zeolite with at least one exchanged metal in the zeolite being selected from the group consisting of Ti, V, Cr, Co, Ni, Cu, Fe, Mo, Mn, Pd, and Pt, and at least one impregnated metal in the zeolite being selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Mo, Pd and Pt, and wherein the difference between the exchanged metal and the impregnated metal varies the temperature necessary to promote oxidation of the compounds and for a contact time sufficient to oxidize the compounds. The process reaction temperature can vary from about 100.degree. C. to about 650.degree. C. and the contact time can vary from about 0.01 to 20 seconds. Preferredly, the reaction temperature is from about 150.degree. C. to about 450.degree. C. and the contact time is from about 0.1 to 1.0 seconds. The CO/CO.sub.2 ratio and the Cl.sub.2 /HCl ratio in the gaseous effluent can be varied through selection of at least two impregnating metals with at least one exchanged metal in the aluminosilicate zeolite or by the use of at least one impregnating metal with at least two exchanged metals in the aluminosilicate zeolite.

    摘要翻译： 本发明涉及用于破坏挥发性有机化合物（VOC）的方法和催化剂组合物。 该方法包括在催化剂存在下使VOC与含氧气体接触的步骤，所述催化剂是金属交换的金属浸渍的硅铝酸盐沸石，沸石中的至少一种交换金属选自Ti ，V，Cr，Co，Ni，Cu，Fe，Mo，Mn，Pd和Pt，沸石中的至少一种浸渍金属选自Ti，V，Cr，Mn，Fe，Co， Ni，Cu，Mo，Pd和Pt，并且其中交换的金属和浸渍金属之间的差异改变促进化合物氧化所需的温度和足以氧化化合物的接触时间。 工艺反应温度可以在约100℃至约650℃之间变化，接触时间可以在约0.01至20秒之间变化。 优选地，反应温度为约150℃至约450℃，接触时间为约0.1至1.0秒。 气态流出物中的CO / CO 2比和Cl 2 / HCl比可以通过在铝硅酸盐沸石中选择至少两种浸渍金属与至少一种交换的金属或通过使用至少一种浸渍金属至少两种来改变 在铝硅酸盐沸石中交换金属。