申请人:——
公开号:US20040030209A1
公开(公告)日:2004-02-12
The preparation of alkylaryl compounds takes place by
1) preparation of a mixture of, on statistical average, predominantly monobranched C
10-14
-olefins by
a) reaction of a C
4
-olefin mixture over a metathesis catalyst for the preparation of an olefin mixture comprising 2-pentene and/or 3-hexene, and optional removal of 2-pentene and/or 3-hexene, followed by dimerization of the resulting 2-pentene and/or 3-hexene over a dimerization catalyst to give a mixture comprising C
10-12
-olefins, and optionally removal of the C
10-12
-olefins, or
b) extraction of predominantly monobranched paraffins from kerosene cuts and subsequent dehydrogenation, or
c) Fischer-Tropsch synthesis of olefins or paraffins, where the paraffins are dehydrogenated, or
d) dimerization of shorter-chain internal olefins, or
e) isomerization of linear olefins or paraffins, where the isomerized paraffins are dehydrogenated,
2) reaction of the olefin mixture obtained in stage 1) with an aromatic hydrocarbon in the presence of an alkylation catalyst which contains zeolites of the faujasite type.
烷基芳烃化合物的制备通过以下步骤进行:1)制备主要为单支链C10-14烯烃的混合物,方法包括a)将C4烯烃混合物与交换催化剂反应,制备包含2-戊烯和/或3-己烯的烯烃混合物,可选择性去除2-戊烯和/或3-己烯,然后将所得的2-戊烯和/或3-己烯在二聚化催化剂作用下二聚化,得到包含C10-12烯烃的混合物,可选择性去除C10-12烯烃;b)从煤油馏分中提取主要为单支链的烷烃,随后进行脱氢;c)费舍尔-特罗普合成烯烃或烷烃,其中烷烃进行脱氢;d)较短链内部烯烃的二聚化;e)线性烯烃或烷烃的异构化,其中异构化的烷烃进行脱氢;2)将第1步得到的烯烃混合物与芳香烃在烷基化催化剂存在下反应,该催化剂含有沸石型沸石。