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    Process for improving the selectivity of an EO catalyst
    1.
    发明授权
    Process for improving the selectivity of an EO catalyst 有权
    提高EO催化剂选择性的方法

    公开(公告)号：US08742147B2

    公开(公告)日：2014-06-03

    申请号：US13310273

    申请日：2011-12-02

    申请人： Wayne Errol Evans ,  Marek Matusz ,  Paul Michael McAllister

    发明人： Wayne Errol Evans ,  Marek Matusz ,  Paul Michael McAllister

    IPC分类号： C07D301/03 ,  C07C43/00 ,  C07C31/18 ,  C07C29/03

    CPC分类号： C07D303/04 ,  Y02P20/142

    摘要： The present invention relates to a process for improving the overall selectivity of an EO process for converting ethylene to ethylene oxide utilizing a highly selective EO silver catalyst containing a rhenium promoter wherein following normal operation a chloride strip of the chloride on the surface of the catalyst is conducted in order to remove a portion of the chlorides on the surface of the catalyst. The chloride strip involves the addition of certain saturated hydrocarbons to the feed. Following the chloride strip, the catalyst is optionally re-optimized.

    摘要翻译： 本发明涉及使用含有铼助催化剂的高度选择性的EO银催化剂来改善EO转化为环氧乙烷的EO方法的总体选择性的方法，其中在正常操作之后，催化剂表面上氯化物的氯化物条是 进行以除去催化剂表面上的一部分氯化物。 氯化物条包括向进料中加入某些饱和烃。 在氯化带之后，任选地重新优化催化剂。

    Process for the start-up of an epoxidation process, a process for the production of ethylene oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine
    2.
    发明授权
    Process for the start-up of an epoxidation process, a process for the production of ethylene oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine 有权
    环氧化方法启动方法，生产环氧乙烷的方法，1,2-二醇，1,2-二醇醚，1,2-碳酸酯或链烷醇胺

    公开(公告)号：US09346774B2

    公开(公告)日：2016-05-24

    申请号：US12437172

    申请日：2009-05-07

    申请人： Marek Matusz ,  Paul Michael McAllister

    发明人： Marek Matusz ,  Paul Michael McAllister

    IPC分类号： C07D301/03 ,  C07D301/10

    CPC分类号： C07D301/10 ,  Y02P20/142 ,  Y02P20/52

    摘要： A process is provided for the start-up of an ethylene epoxidation process comprising: (a) contacting a catalyst bed comprising a high selectivity epoxidation catalyst with a feed comprising ethylene, oxygen and an organic chloride for a period of time until an increase of at least 1×10−5 mole-% of vinyl chloride (calculated as the moles of vinyl chloride relative to the total gas mixture), preferably 2×10−5 mole-% of vinyl chloride is detected in a reactor outlet gas or a recycle gas loop; and (b) subsequently adjusting the quantity of organic chloride in the feed to a value sufficient to produce ethylene oxide at a substantially optimum selectivity.

    摘要翻译： 提供了一种启动乙烯环氧化方法的方法，包括：（a）将包含高选择性环氧化催化剂的催化剂床与包含乙烯，氧气和有机氯化物的进料接触一段时间，直到增加 在反应器出口气体或回收物中检测到最少1×10-5摩尔％的氯乙烯（以氯乙烯相对于总气体混合物的摩尔计算），优选2×10-5摩尔％的氯乙烯 气回路 和（b）随后将进料中的有机氯化物的量调节至足以以基本上最佳选择性产生环氧乙烷的值。