Process for the production of alkylbenzenes from an olefinic feedstock produced by oligomerization that is catalyzed homogeneously
    5.
    发明授权
    Process for the production of alkylbenzenes from an olefinic feedstock produced by oligomerization that is catalyzed homogeneously 有权
    由齐聚催化产生的烯烃原料生产烷基苯的方法,该方法是均匀催化的

    公开(公告)号:US08618342B2

    公开(公告)日:2013-12-31

    申请号:US13101204

    申请日:2011-05-05

    IPC分类号: C07C2/32 C07C2/34

    摘要: A process for the production of a mixture of alkylbenzenes in the presence of an aromatic feedstock and an olefinic stream produced from an ethylene feedstock is described, with said process comprising at least: a) A first stage for oligomerization of said ethylene feedstock that consists of at least one hydrocarbon effluent that comprises a mixture of olefins having a number of carbon atoms that is for the most part between 4 and 30, whereby said mixture of olefins comprises a C10-C24 olefinic fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system, b) A second stage for oligomerization of the effluent that is obtained from said stage a) that consists of at least one hydrocarbon effluent that comprises a mixture of olefins having a number of carbon atoms that is for the most part between 4 and 30, whereby said mixture of olefins comprises a C10-C24 olefinic fraction that has a mean linearity that is less than 50%, in the presence of a homogeneous catalytic system that is identical to or different from the one that is used in said stage a), c) A stage for fractionation of the effluent that is obtained from said oligomerization stage b) in such a way as to recover at least one olefin-enriched olefinic stream having a number of carbon atoms that is greater than or equal to 9, d) A stage for alkylation of said olefinic stream by an aromatic feedstock.

    摘要翻译: 描述了在芳族原料和由乙烯原料生产的烯烃流的存在下生产烷基苯的混合物的方法,所述方法至少包括:a)所述乙烯原料的低聚的第一阶段,其由 至少一种碳氢化合物流出物,其包含具有大部分在4-30之间的碳原子数的烯烃的混合物,由此所述烯烃混合物包含具有大于60的平均直线度的C10-C24烯烃级分 在均相催化体系存在下,b)用于使从所述阶段a)获得的流出物的低聚的第二阶段,a)由至少一种烃流出物组成,所述烃流出物包含具有多个碳原子的烯烃的混合物, 大部分在4和30之间,其中所述烯烃混合物包括在存在下具有小于50%的平均线性的C10-C24烯烃级分 与在所述阶段a)中使用的相同或不同的均相催化体系,c)从所述低聚阶段b)获得的流出物的分级分级的阶段,至少回收至少 一个具有大于或等于9个碳原子的烯烃富集的烯烃流,d)通过芳族原料烷基化所述烯烃流的阶段。

    Process for Isomerizing an Aromatic C8 cut in the presence of a catalyst based on a Dealuminated Euo Zeolite
    10.
    发明申请
    Process for Isomerizing an Aromatic C8 cut in the presence of a catalyst based on a Dealuminated Euo Zeolite 有权
    在基于脱铝EuO沸石的催化剂存在下异构化芳族C8馏分的方法

    公开(公告)号:US20080275281A1

    公开(公告)日:2008-11-06

    申请号:US12081870

    申请日:2008-04-22

    IPC分类号: C07C5/22

    摘要: A process is described for isomerising an aromatic cut containing at least one aromatic compound containing eight carbon atoms per molecule, comprising bringing said cut into contact with a catalyst containing a zeolite with structure type EUO, said catalyst having been prepared using a process comprising at least the following steps: i) synthesizing at least one zeolite with structure type EUO having an overall Si/Al atomic ratio in the range 5 to 45; ii) dealuminating the zeolite obtained at the end of said step i) using at least one treatment with an aqueous solution of a mineral acid or an organic acid, such that at least 10% by weight of the aluminium atoms are extracted from said zeolite from said step i); iii) forming said dealuminated zeolite with a matrix; iv) depositing at least one metal from group VIII of the periodic table of the elements, the order of carrying out said steps iii) and iv) being inconsequential following on from said step ii).

    摘要翻译: 描述了一种方法,用于异构化含有至少一种每分子含有8个碳原子的芳族化合物的芳族切割,包括使所述切割物与含有结构类型为EUO的沸石的催化剂接触,所述催化剂已经使用至少包括 以下步骤:i)合成至少一种具有总体Si / Al原子比在5至45范围内的结构类型EUO的沸石; ii)使所述步骤i)末端获得的沸石脱铝,使用无机酸或有机酸的水溶液进行至少一次处理,使得至少10重量%的铝原子从所述沸石中提取出来 说步骤i); iii)用基质形成所述脱铝沸石; iv)从所述元件的周期表的VIII族中沉积至少一种金属,执行所述步骤iii)和iv)的顺序在所述步骤ii)之后是无关紧要的。