BENZENE ALKYLATION
    65.
    发明申请
    BENZENE ALKYLATION 审中-公开
    苯甲酸烷基酯

    公开(公告)号:WO2012054260A2

    公开(公告)日:2012-04-26

    申请号:PCT/US2011/055728

    申请日:2011-10-11

    摘要: A process for the production of alkylbenzene, the process including: feeding a Ci to C6 alcohol and benzene to a catalytic distillation reactor system comprising an upper reaction zone containing an alkylation catalyst and a lower reaction zone containing a transalkylation catalyst, which may be the same or different than the alkylation catalyst; concurrently in the catalytic distillation reactor system: reacting a portion of the alcohol with the benzene within the upper reaction zone to form a reaction mixture containing water, alkylbenzene, dialkyl ether, unreacted alcohol, unreacted benzene, and polyalkylate including dialkylbenzene; reacting a portion of the polyalkylate with benzene in the lower reaction zone to form additional alkylbenzene; and fractionally distilling the reaction mixture; recovering an overheads fraction from the catalytic distillation reactor system comprising benzene, unreacted alcohol, water, and dialkyl ether; recovering a bottoms fraction from the catalytic distillation reactor system comprising benzene, alkylbenzene, and polyalkylate.

    摘要翻译: 一种生产烷基苯的方法,该方法包括:将C 1至C 6醇和苯进料至包含含有烷基化催化剂的上部反应区和含有烷基转移催化剂的较低反应区的催化蒸馏反应器系统,该反应区可以相同 或不同于烷基化催化剂; 同时在催化蒸馏反应器系统中:使一部分醇与上部反应区内的苯反应,形成含有水,烷基苯,二烷基醚,未反应的醇,未反应的苯和包括二烷基苯的多烷基化物的反应混合物; 使一部分多烷基化物与下反应区中的苯反应形成另外的烷基苯; 并分馏蒸馏反应混合物; 从包含苯,未反应的醇,水和二烷基醚的催化蒸馏反应器系统回收塔顶馏分; 从包含苯,烷基苯和多烷基化物的催化蒸馏反应器系统中回收塔底馏分。

    METHOD FOR MONITORING PERFORMANCE OF PROCESS CATALYSTS
    70.
    发明申请
    METHOD FOR MONITORING PERFORMANCE OF PROCESS CATALYSTS 审中-公开
    监测过程催化剂性能的方法

    公开(公告)号:WO2011146171A3

    公开(公告)日:2012-03-08

    申请号:PCT/US2011031787

    申请日:2011-04-08

    摘要: Disclosed is a method for determining when to replace a guard bed material used to remove one or more catalyst poisons from a feed based on a parameter change in a process. A guard bed having a guard bed material is in fluid communication with a catalyst bed having a catalyst. At least three monitors are positioned in said guard bed or said catalyst bed and at least one parameter of the guard bed or catalyst bed is monitored. A feed component comprising one or more catalyst poisons is supplied to said guard bed or said catalyst bed. The feed is contacted with said guard bed material or said catalyst to remove at least a portion of a catalyst poison and to form a product which produces an increase or a decrease in said parameter. The monitored parameters are compared to determine when to replace the guard bed material.

    摘要翻译: 公开了一种用于基于过程中的参数变化来确定何时更换用于从进料中去除一种或多种催化剂毒物的保护床材料的方法。 具有防护床材料的保护床与具有催化剂的催化剂床流体连通。 至少三个监视器位于所述保护床或所述催化剂床中,并且监视保护床或催化剂床的至少一个参数。 将包含一种或多种催化剂毒物的进料组分供应到所述保护床或所述催化剂床。 进料与所述保护床材料或所述催化剂接触以除去至少一部分催化剂毒物并形成产生所述参数的增加或减少的产物。 比较监测的参数,以确定何时更换防护层材料。