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    Process for polymerization in the presence of alpha olefins
    61.
    发明授权
    Process for polymerization in the presence of alpha olefins 有权
    在α-烯烃存在下进行聚合的方法

    公开(公告)号：US06184315B2

    公开(公告)日：2001-02-06

    申请号：US09252869

    申请日：1999-02-18

    申请人： Alain Forestiere ,  François Hugues

    发明人： Alain Forestiere ,  François Hugues

    IPC分类号： C08F200

    CPC分类号： C08F6/003 ,  C08F6/006 ,  C08F210/16 ,  C08L23/08 ,  C08F210/14

    摘要： The polymerization process is carried out starting from a monomer that is introduced via pipe (1) and a comonomer that is introduced via pipe (2); the comonomer that is used, which is an alpha-olefin, is introduced into polymerization reactor P in the form of an approximately pure compound. The polymerization effluent is then separated in separator S1 into two fractions: a heavy fraction that is evacuated via pipe (5) and that contains at least one polymer, and a light fraction that is evacuated via pipe (4) and that comprises the monomer that has not reacted, the comonomer that has not reacted, as well as isomers of this comonomer. At least a portion of the light fraction is then treated during an ethenolysis stage E in the presence of an addition of fresh ethylene that is introduced via line (9). The effluent that is produced in the ethenolysis stage is subjected to at least two separations in separation train S2. After the fraction that contains the light olefins and the fraction that contains the heavy compounds have been separated, the fraction that comprises the comonomer is recycled via pipe (10) toward polymerization zone P.

    摘要翻译： 从通过管（1）引入的单体和通过管（2）引入的共聚单体开始聚合过程; 将所使用的共聚单体（其为α-烯烃）以近纯化合物的形式引入聚合反应器P中。 然后将聚合流出物在分离器S1中分离成两部分：通过管道（5）抽真空并且含有至少一种聚合物的重馏分和通过管道（4）抽空的轻馏分，并且包含单体， 没有反应，未反应的共聚单体，以及该共聚单体的异构体。 然后在乙烯溶解阶段E中，在加入通过管线（9）引入的新鲜乙烯的存在下，至少部分轻馏分处理。 在乙烯分解阶段中产生的流出物在分离系S2中进行至少两次分离。 在含有轻质烯烃的馏分和含有重质化合物的馏分已经分离后，包含共聚单体的馏分通过管道（10）再循环到聚合区域P.

    Process for synthesizing and purifying olefins comprising dehydrogenating a paraffin
    62.
    发明授权
    Process for synthesizing and purifying olefins comprising dehydrogenating a paraffin 失效
    合成和纯化烯烃的方法，包括使石蜡脱氢

    公开(公告)号：US6121505A

    公开(公告)日：2000-09-19

    申请号：US103524

    申请日：1998-06-24

    申请人： Charles Bronner ,  Reynald Bonneau ,  Pierre Boucot ,  Alain Forestiere

    发明人： Charles Bronner ,  Reynald Bonneau ,  Pierre Boucot ,  Alain Forestiere

    IPC分类号： C07C5/333 ,  C07C11/02 ,  C07C5/327 ,  C07C1/00 ,  C07C5/373 ,  C07C7/00 ,  C10G9/00

    CPC分类号： C07C11/02 ,  C07C5/333

    摘要： The present invention relates to a process for the production of olefins from a hydrocarbon cut, comprising a step for separating at least one paraffin contained in the hydrocarbon cut, a step for dehydrogenating the paraffin and a step for purifying the hydrogen produced during dehydrogenation, at least a part of that hydrogen being recycled to the dehydrogenation step. The invention is of particular application to the preparation of olefins containing 3 to 5 carbon atoms per molecule from a C.sub.3 to C.sub.5 hydrocarbon cut containing at least one paraffin.

    摘要翻译： 本发明涉及一种从烃切割生产烯烃的方法，包括分离烃馏分中所含的至少一种石蜡的步骤，用于使石蜡脱氢的步骤和用于纯化在脱氢过程中产生的氢气的步骤 将该氢的至少一部分再循环至脱氢步骤。 本发明特别适用于从含有至少一种链烷烃的C 3 -C 5烃馏分制备每分子含3至5个碳原子的烯烃。

    Integral method for desulphurization of a hydrocarbon cracking or stream cracking effluent
    69.
    发明授权
    Integral method for desulphurization of a hydrocarbon cracking or stream cracking effluent 失效
    烃裂化或流裂解流出物脱硫的整体方法

    公开(公告)号：US07344635B2

    公开(公告)日：2008-03-18

    申请号：US10503807

    申请日：2003-01-22

    申请人： Patrick Briot ,  Pierre Boucot ,  Alain Forestiere ,  Nathalie Marchal-George ,  Florent Picard

    发明人： Patrick Briot ,  Pierre Boucot ,  Alain Forestiere ,  Nathalie Marchal-George ,  Florent Picard

    IPC分类号： C10G45/02

    CPC分类号： C10G69/123 ,  C10G29/205

    摘要： Process for desulfurization of an effluent for cracking or steam-cracking hydrocarbons, more particularly a gasoline for example for catalytic cracking that comprises the elimination of thiophenic compounds by alkylation of these compounds, followed by a distillation, a hydrocracking of said alkyl-thiophenic compounds, then a hydrodesulfurization of the effluent that is obtained from the hydrocracking zone. In a preferred embodiment, this process comprises a preliminary stage for separating the cracking or steam-cracking effluent into three fractions, and proposes sending to the alkylation stage only the intermediate fraction that is low in heavy basic nitrogen-containing compounds that are initially present in the effluents that are to be alkylated.

    摘要翻译： 用于裂化或蒸汽裂解烃的流出物的脱硫方法，更具体地，例如用于催化裂解的汽油，其包括通过这些化合物的烷基化除去噻吩化合物，然后蒸馏，所述烷基 - 噻吩化合物的加氢裂化， 然后从加氢裂化区获得的流出物的加氢脱硫。 在优选的实施方案中，该方法包括用于将裂化或蒸汽裂解流出物分离成三个馏分的初步阶段，并且建议仅向最初存在于重质碱性含氮化合物中的低碱性含氮化合物的中间馏分 待烷基化的废水。