Catalytic conversion of polycyclic aromatics into xylenes
    9.
    发明授权
    Catalytic conversion of polycyclic aromatics into xylenes 有权
    多环芳烃催化转化成二甲苯

    公开(公告)号:US06972348B2

    公开(公告)日:2005-12-06

    申请号:US10807626

    申请日:2004-03-24

    IPC分类号: C07C4/24 C07C5/22 C07C6/12

    摘要: A catalyst, and a process for using the catalyst, that effectively converts and transalkylates indane and C10 and heavier polycyclic aromatics into C8 aromatics is herein disclosed. The catalyst comprises a solid-acid support such as mordenite plus a metal component such as rhenium. The catalyst provides excellent conversion of such heavy aromatic species as naphthalene, which is also observed by a decrease in the ending-boiling-point of a hydrocarbon stream passed over the catalyst. The same catalyst is also effective for transalkylation of lighter aromatics, thus yielding a valuable xylenes product stream out of the process.

    摘要翻译: 本文公开了一种催化剂和使用该催化剂的方法,其有效地将茚满和C 10 N和更重的多环芳烃转化和烷基化到C 8芳烷烃中。 催化剂包括固体酸载体如丝光沸石和金属组分如铼。 该催化剂提供了诸如萘之类的重芳族物质的极好的转化率,这也是通过在催化剂上通过的烃流的终沸点降低而观察到的。 相同的催化剂对于较轻的芳族化合物的烷基转移也是有效的,因此在工艺中产生有价值的二甲苯产物流。

    XYLENE PRODUCTION PROCESSES WITH INTEGRATED FEEDSTOCK TREATMENT
    10.
    发明申请
    XYLENE PRODUCTION PROCESSES WITH INTEGRATED FEEDSTOCK TREATMENT 有权
    具有集成进料处理的XYLENE生产工艺

    公开(公告)号:US20110046427A1

    公开(公告)日:2011-02-24

    申请号:US12917045

    申请日:2010-11-01

    IPC分类号: C07C15/08

    CPC分类号: C07C6/123 C07C15/08

    摘要: A process for aromatic transalkylation and olefin reduction of a feed stream is disclosed. Transalkylation conditions provide a product having increased xylene concentration and reduced olefin concentration relative to the feed. The process may be used in a xylene production facility to minimize or avoid the necessity of feedstock pretreatment such as hydrotreating, hydrogenation, or treating with clay and/or molecular sieves.

    摘要翻译: 公开了一种进料流的芳族烷基转移和烯烃还原方法。 烷基转移条件提供了相对于进料的二甲苯浓度增加和烯烃浓度降低的产物。 该方法可用于二甲苯生产设备中以最小化或避免原料预处理(如加氢处理,氢化或用粘土和/或分子筛处理)的必要性。