Use of structured catalyst beds for preparing ethylene oxide
    7.
    发明授权
    Use of structured catalyst beds for preparing ethylene oxide 有权
    使用结构化催化剂床制备环氧乙烷

    公开(公告)号:US08580982B2

    公开(公告)日:2013-11-12

    申请号:US13376879

    申请日:2010-06-09

    IPC分类号: C07D301/03

    CPC分类号: C07D301/10

    摘要: The present invention relates to a process for preparing ethylene oxide by reaction of ethylene with oxygen in the presence of at least one silver-comprising catalyst, wherein the reaction takes place in a reactor which has a catalyst packed bed having at least two zones (i) and (ii) and the silver content of the catalyst in zone (i) is lower than the silver content of the catalyst in zone (ii). The catalyst packed bed preferably has a further zone (a) with which the reaction mixture comes into contact before the zones (i) and (ii). According to the invention, the silver content of the catalyst in the zone (a) is higher than the silver content of the catalyst in zone (i).

    摘要翻译: 本发明涉及通过乙烯与氧在至少一种含银催化剂存在下反应来制备环氧乙烷的方法,其中该反应在具有至少两个区域的催化剂填充床(i )和(ii),并且(i)区域中的催化剂的银含量低于区域(ii)中的催化剂的银含量。 催化剂填充床优选具有另外的区域(a),反应混合物在区域(i)和(ii)之前与其接触。 根据本发明,区域(a)中催化剂的银含量高于区域(i)中催化剂的银含量。

    USE OF STRUCTURED CATALYST BEDS FOR PREPARING ETHYLENE OXIDE
    8.
    发明申请
    USE OF STRUCTURED CATALYST BEDS FOR PREPARING ETHYLENE OXIDE 有权
    用于制备乙烯氧化物的结构化催化剂床的用途

    公开(公告)号:US20120077998A1

    公开(公告)日:2012-03-29

    申请号:US13376879

    申请日:2010-06-09

    IPC分类号: C07D301/10

    CPC分类号: C07D301/10

    摘要: The present invention relates to a process for preparing ethylene oxide by reaction of ethylene with oxygen in the presence of at least one silver-comprising catalyst, wherein the reaction takes place in a reactor which has a catalyst packed bed having at least two zones (i) and (ii) and the silver content of the catalyst in zone (i) is lower than the silver content of the catalyst in zone (ii). The catalyst packed bed preferably has a further zone (a) with which the reaction mixture comes into contact before the zones (i) and (ii). According to the invention, the silver content of the catalyst in the zone (a) is higher than the silver content of the catalyst in zone (i).

    摘要翻译: 本发明涉及通过乙烯与氧在至少一种含银催化剂存在下反应来制备环氧乙烷的方法,其中该反应在具有至少两个区域的催化剂填充床(i )和(ii),并且(i)区域中的催化剂的银含量低于区域(ii)中的催化剂的银含量。 催化剂填充床优选具有另外的区域(a),反应混合物在区域(i)和(ii)之前与其接触。 根据本发明,区域(a)中催化剂的银含量高于区域(i)中催化剂的银含量。