Para-Xylene Production Process Employing In-Situ Catalyst Selectivation
    3.
    发明申请
    Para-Xylene Production Process Employing In-Situ Catalyst Selectivation 有权
    使用原位催化剂选择的对二甲苯生产过程

    公开(公告)号:US20080033067A1

    公开(公告)日:2008-02-07

    申请号:US11866847

    申请日:2007-10-03

    IPC分类号: C07C27/00

    摘要: A catalytic process for the selective production of para-xylene comprises the step of reacting an aromatic hydrocarbon selected from the group consisting of toluene, benzene and mixtures thereof with a feed comprising carbon monoxide and hydrogen in the presence of a selectivated catalyst. The process includes a catalyst selectivation phase and a para-xylene production phase. In the catalyst selectivation phase, the aromatic hydrocarbon and the feed are contacted with the catalyst under a first set of conditions effective to increase the para-selectivity of said catalyst. In the para-xylene production phase, the aromatic hydrocarbon and said feed are contacted with the catalyst under a second set of conditions different from the first set of conditions effective to selectively produce para-xylene.

    摘要翻译: 用于选择性生产对二甲苯的催化方法包括在选择性催化剂存在下使选自甲苯,苯及其混合物的芳族烃与包含一氧化碳和氢的进料反应的步骤。 该方法包括催化剂选择阶段和对二甲苯生产阶段。 在催化剂选择阶段,芳族烃和进料在有效提高所述催化剂对位选择性的第一组条件下与催化剂接触。 在对二甲苯生产阶段中,芳族烃和所述进料在不同于有效选择性地产生对二甲苯的第一组条件的第二组条件下与催化剂接触。