Selective aromatics disproportionation process
    6.
    发明授权
    Selective aromatics disproportionation process 失效
    选择性芳烃歧化过程

    公开(公告)号:US6114592A

    公开(公告)日:2000-09-05

    申请号:US213957

    申请日:1998-12-17

    摘要: An improved process combination is disclosed for the selective disproportionation of toluene. The combination comprises selective hydrogenation of a toluene feedstock followed by disproportionation using a zeolitic catalyst which is oil-dropped in an aluminum phosphate binder to achieve a high yield of paraxylene. Optionally, the catalyst is selectively precoked prior to toluene disproportionation. The catalyst and process provide improved selectivity for the production of paraxylene.

    摘要翻译: 公开了改进的方法组合用于甲苯的选择性歧化。 该组合包括甲苯原料的选择性氢化,然后使用沸石催化剂进行歧化,该沸石催化剂油滴在磷酸铝粘合剂中以实现高产率的对二甲苯。 任选地,在甲苯歧化之前选择性地预先催化剂。 催化剂和方法为对二甲苯的生产提供了改进的选择性。