Hydrogenolysis processes and hydrogenolysis catalyst preparation methods
    2.
    发明申请
    Hydrogenolysis processes and hydrogenolysis catalyst preparation methods 审中-公开
    氢解法和氢解催化剂的制备方法

    公开(公告)号:US20090264686A1

    公开(公告)日:2009-10-22

    申请号:US12082997

    申请日:2008-04-16

    摘要: Hydrogenolysis processes are provided that can include providing a hydrogenolysis reactor having a catalyst therein. The catalyst can be exposed to a reducing agent in the absence of polyhydric alcohol compound while maintaining a temperature of the catalyst above 290° C. Hydrogenolysis processes can also include providing a passivated catalyst to within a reactor and exposing the catalyst to a reducing atmosphere while maintaining the catalyst at a temperature less than 210° C.Hydrogenolysis catalyst preparation methods are provided that can include exposing the catalyst to a first reducing atmosphere while maintaining the catalyst at a first temperature to reduce at least a portion of the catalyst. The method can also include passivating at least the portion of the catalyst and depassivating the portion of the catalyst in the presence of a second reducing atmosphere while maintaining the portion of the catalyst at a second temperature less than the first temperature.

    摘要翻译: 提供氢解方法,其可以包括提供其中具有催化剂的氢解反应器。 催化剂可以在不存在多元醇化合物的情况下暴露于还原剂,同时保持催化剂的温度高于290℃。氢解方法还可以包括在反应器内提供钝化的催化剂并将催化剂暴露于还原气氛,同时 将催化剂保持在低于210℃的温度。提供氢解催化剂制备方法,其可以包括将催化剂暴露于第一还原气氛,同时将催化剂保持在第一温度以减少至少一部分催化剂。 该方法还可以包括钝化至少一部分催化剂,并且在第二还原气氛存在的情况下使催化剂的一部分钝化,同时保持催化剂的部分在低于第一温度的第二温度。

    Preparation of bimetallic catalysts for hydrodechlorination of
chlorinated hydrocarbons
    9.
    发明授权
    Preparation of bimetallic catalysts for hydrodechlorination of chlorinated hydrocarbons 失效
    用于氯化烃加氢脱氯的双金属催化剂的制备

    公开(公告)号:US5637548A

    公开(公告)日:1997-06-10

    申请号:US499693

    申请日:1995-07-07

    摘要: A process for preparing a bimetallic catalyst useful for the hydrodechlorination of chlorinated hydrocarbons, comprising impregnating a support with an active hydrogenating metal from a salt solution of the metal, recovering and drying the thus-impregnated support, reducing the impregnated support by exposure to hydrogen and oxidizing the active hydrogenating metal on said support to an oxidized state by exposure to an oxidizing environment, then impregnating the thus-treated support with a surface segregating metal from a salt solution thereof, aging the support/salt solution mixture over a period of time at an elevated temperature, and finally cooling, recovering and drying the catalyst before charging the same to a reactor for reduction or reduction and chloride source pretreatment and subsequent use.

    摘要翻译: 一种用于制备用于氯代烃加氢脱氯的双金属催化剂的方法,包括用金属盐溶液浸渍活性氢化金属的载体,回收和干燥由此浸渍的载体,通过暴露于氢来还原浸渍的载体; 通过暴露于氧化环境将所述载体上的活性氢化金属氧化为氧化态,然后用表面偏析金属从其盐溶液中浸渍如此处理的载体,使载体/盐溶液混合物在一段时间内老化 升温,最后冷却,回收和干燥催化剂,然后将其装入反应器进行还原或还原和氯化物源预处理和随后的使用。