Isomerization of ethylbenzene and xylenes
    1.
    发明授权
    Isomerization of ethylbenzene and xylenes 失效
    乙苯异构化和二甲苯

    公开(公告)号:US06660896B1

    公开(公告)日:2003-12-09

    申请号:US10418439

    申请日:2003-04-16

    IPC分类号: C07C527

    摘要: In a process for isomerizing a feed comprising ethylbenzene and a mixture of xylene isomers, the feed is first contacted under xylene isomerization conditions with a first catalyst composition to produce an intermediate product having a higher para-xylene concentration than the feed, and then the intermediate product is contacted under ethylbenzene isomerization conditions with a second catalyst composition. The second catalyst composition comprises a hydrogenation-dehydrogenation component and a molecular sieve having 10-membered ring pores and is effective to selectively isomerize at least part of the ethylbenzene in the intermediate product to para-xylene and thereby produce a further product having a para-xylene concentration greater than the equilibrium concentration of para-xylene at said ethylbenzene isomerization conditions.

    摘要翻译: 在包含乙苯和二甲苯异构体的混合物的进料异构化的方法中,首先在二甲苯异构化条件下与第一催化剂组合物接触进料以产生具有比进料更高的对二甲苯浓度的中间产物,然后中间体 产物在乙苯异构化条件下与第二催化剂组合物接触。 第二催化剂组合物包含氢化脱氢组分和具有10元环孔的分子筛,并且有效地将中间产物中的至少部分乙苯选择性异构化成对二甲苯,从而产生另外具有对 - 所述乙苯异构化条件下二甲苯浓度大于对二甲苯的平衡浓度。

    Aromatics conversion with ITQ-13
    9.
    发明授权
    Aromatics conversion with ITQ-13 失效
    使用ITQ-13进行芳香族化学转化

    公开(公告)号:US07081556B2

    公开(公告)日:2006-07-25

    申请号:US10285917

    申请日:2002-11-01

    IPC分类号: C07C2/68 C07C5/22 C07C4/12

    摘要: There is provided a process for aromatics conversion by contacting a feed suitable for aromatics conversion under conversion condition and in the presence of a catalyst comprising ITQ-13. Examples of such conversion processes include isomerization of aromatic (xylenes) feedstock, disproportionation of toluene to benzene and xylenes, alkylation and transalkylation of aromatics, conversion of light paraffins and light olefins to aromatics, conversion of naphtha to aromatics, and conversion of alcohol to aromatics.

    摘要翻译: 通过在转化条件下和在包含ITQ-13的催化剂的存在下接触适于芳族化合物转化的进料来提供芳族化合物转化的方法。 这种转化方法的实例包括芳族(二甲苯)原料的异构化,甲苯向苯和二甲苯的歧化,芳族化合物的烷基化和烷基转移,轻链烷烃和轻质烯烃转化为芳族化合物,将石脑油转化为芳族化合物,以及将醇转化成芳族化合物 。