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    PROCESS FOR IMPROVING THE SELECTIVITY OF AN EO CATALYST
    4.
    发明授权
    PROCESS FOR IMPROVING THE SELECTIVITY OF AN EO CATALYST 有权

    公开(公告)号：EP2714670B1

    公开(公告)日：2018-08-01

    申请号：EP12776466.0

    申请日：2012-04-26

    申请人： Shell Internationale Research Maatschappij B.V.

    发明人： EVANS, Wayne Errol ,  KOBE, Jeffrey Michael ,  MATUSZ, Marek

    IPC分类号： C07D301/12 ,  C07C213/04

    CPC分类号： C07C213/04 ,  C07D301/12 ,  Y02P20/52 ,  C07C215/08

    摘要： Processes for the epoxidation of ethylene are provided in which, following start-up, an epoxidation catalyst is contacted with a feed comprising ethylene, oxygen, carbon dioxide in an amount below 2.0 vol. %, and a chloride moderator to achieve a desired work rate at a first operating temperature T1. The composition of the feed is subsequently adjusted (e.g., by decreasing the ethylene concentration, decreasing the oxygen concentration, increasing the carbon dioxide concentration and/or adjusting the concentration of the chloride moderator) so as to increase the first operating temperature T1 to a second operating temperature T2 while maintaining the desired work rate. As the catalyst activity declines, the composition of the feed is further adjusted so as to maintain the desired work rate at the second operating temperature T2.

    PRODUCTION OF TEA 85% DIRECTLY WITHOUT BLENDING WITH PURE CUT OF DEA 99%
    10.
    发明公开
    PRODUCTION OF TEA 85% DIRECTLY WITHOUT BLENDING WITH PURE CUT OF DEA 99% 审中-公开
    HERSTELLUNG VON TEA 85％DIREKT OHNE MISCHEN MIT REINEM STRECKEN VON DEA 99％

    公开(公告)号：EP3148965A1

    公开(公告)日：2017-04-05

    申请号：EP15733533.2

    申请日：2015-05-27

    申请人： SABIC Global Technologies B.V.

    发明人： ALHAZMI, Naeem

    IPC分类号： C07C213/04 ,  C07C213/10

    CPC分类号： C07C213/04 ,  C07C213/10 ,  Y02P20/127 ,  C07C215/12

    摘要： Systems and methods for producing a triethanolamine product stream with a degree of purity of 85% by weight from the triethanolamine distillation columns in a reactive distillation process without blending the TEA 99 product stream with a pure cut of DEA 99%. The desired triethanolamine product stream can include 85% TEA and 15% DEA and can be created by using a dummy stream at the triethanolamine column via (1) increasing the bottom stream flow rate of the diethanolamine column, and/or (2) reducing the TEA 99 product stream at the triethanolamine column. The bottom stream flow rate at the diethanolamine column can be increased by 80 kilograms per hour and the triethanolamine product stream flow rate can be reduced by 500 kilograms per hour. This process can result in up to a 23 degree temperature reduction in the triethanolamine column, which can improve the color properties of the triethanolamine product.

    摘要翻译： 在反应蒸馏过程中从三乙醇胺蒸馏塔中纯化度为85重量％的三乙醇胺产物流的制备和方法，而不将TEA 99产物流与纯DEA 99％的馏分混合。 所需的三乙醇胺产物流可以包括85％TEA和15％DEA，并且可以通过使用在三乙醇胺柱上的虚拟物流通过（1）增加二乙醇胺塔的底部流量来产生，和/或（2）减少 TEA 99产品流在三乙醇胺柱。 二乙醇胺柱的底部流速可以每小时增加80千克，三乙醇胺产物流的流速可以减少500千克/小时。 该方法可以导致三乙醇胺塔中的23℃降温，这可以改善三乙醇胺产品的着色性能。