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    Alkylation of aromatic substrates and transalkylation process
    3.
    发明授权
    Alkylation of aromatic substrates and transalkylation process 有权
    芳基底物的烷基化和烷基转移过程

    公开(公告)号：US08802910B2

    公开(公告)日：2014-08-12

    申请号：US12937581

    申请日：2009-04-03

    申请人： Jean-Bernard Cary

    发明人： Jean-Bernard Cary

    IPC分类号： C07C2/66

    CPC分类号： C07C2/64 ,  C07C2/66 ,  C07C6/06 ,  C07C6/126 ,  C07C15/073

    摘要： A process for the alkylation of an aromatic substrate can include providing an alkylation reaction zone containing an alkylation catalyst, and introducing a feedstock including an aromatic substrate and an alkylating agent into an inlet of the alkylation reaction zone and into contact with the alkylation catalyst. The alkylation reaction zone can be operated at temperature and pressure conditions to cause alkylation of the aromatic substrate in the presence of the alkylation catalyst to produce an alkylation product including a mixture of the aromatic substrate and monoalkylated and polyalkylated aromatic components. The alkylation product can be withdrawn from the alkylation reaction zone. Nitrogen containing compounds in the aromatic substrate, alkylating agent, or both can be monitored in a range 15 wppb to 35 wppm by dry colorimetry. The process can include transalkylation of polyalkylated aromatic components in a transalkylation reaction zone containing a transalkylation catalyst.

    摘要翻译： 烷基化芳族底物的方法可包括提供含有烷基化催化剂的烷基化反应区，并将包含芳族底物和烷基化剂的原料引入烷基化反应区的入口并与烷基化催化剂接触。 烷基化反应区可以在温度和压力条件下操作，以在烷基化催化剂存在下引起芳族底物的烷基化，产生包括芳族底物和单烷基化和多烷基化芳族组分的混合物的烷基化产物。 烷基化产物可从烷基化反应区取出。 通过干比色法可以在15wppb至35wppm的范围内监测芳族底物，烷基化剂或两者中的含氮化合物。 该方法可以包括在含有烷基转移催化剂的烷基转移反应区中多烷基化芳族组分的烷基转移。

    Alkylation of Aromatic Substrates and Transalkylation Process
    4.
    发明申请
    Alkylation of Aromatic Substrates and Transalkylation Process 有权

    公开(公告)号：US20110130608A1

    公开(公告)日：2011-06-02

    申请号：US12937581

    申请日：2009-04-03

    申请人： Jean-Bernard Cary

    发明人： Jean-Bernard Cary

    IPC分类号： C07C2/58

    CPC分类号： C07C2/64 ,  C07C2/66 ,  C07C6/06 ,  C07C6/126 ,  C07C15/073

    摘要： The present invention is a process for the alkylation of an aromatic substrate comprising:(a) providing an alkylation reaction zone containing an alkylation catalyst;(b) introducing a feedstock comprising an aromatic substrate and an alkylating agent into the inlet of said alkylation reaction zone and into contact with said alkylation catalyst;(c) operating said alkylation reaction zone at temperature and pressure conditions to cause alkylation of said aromatic substrate in the presence of said alkylation catalyst to produce an alkylation product comprising a mixture of said aromatic substrate and monoalkylated and polyalkylated aromatic components;(d) withdrawing the alkylation product from said alkylation reaction zone;whereinthe nitrogen containing compounds impurities in the aromatic substrate or in the alkylating agent or both in the aromatic substrate and in the alkylating agent are monitored in a range 15 wppb-35 wppm by dry colorimetry.In an advantageous embodiment the alkylation reaction zone is operated in the liquid phase.In another embodiment the aromatic substrate is benzene and the alkylating agent is ethylene.The present invention also relates to a process for the transalkylation of polyalkylated aromatic components comprising:(a) providing a transalkylation reaction zone containing a transalkylation catalyst;(b) introducing a feedstock comprising at least a polyalkylated aromatic component deriving from an aromatic substrate into the inlet of said transalkylation reaction zone and into contact with said transalkylation catalyst;(c) supplying an aromatic substrate to said transalkylation zone, said aromatic substrate being the same as the one of step (b);(d) operating said transalkylation zone at temperature and pressure conditions to cause disproportionation of said polyalkylated aromatic components to produce a disproportionation product having a reduced polyalkylated aromatic content and an enhanced monoalkylated aromatic content;(e) withdrawing the disproportionation product from said transalkylation zone;whereinthe nitrogen containing compounds impurities in the aromatic substrate are monitored in a range 15 wppb-35 wppm by dry colorimetry.In an advantageous embodiment the aromatic substrate is benzene and the polyalkylated aromatic component is diethylbenzene.