PRODUCTION OF ALKYL AROMATIC COMPOUNDS
    2.
    发明申请
    PRODUCTION OF ALKYL AROMATIC COMPOUNDS 审中-公开
    生产烷基芳族化合物

    公开(公告)号:WO2003074452A1

    公开(公告)日:2003-09-12

    申请号:PCT/US2003/005927

    申请日:2003-02-27

    Abstract: Improved integrated processes for the production of alkyl aromatic compounds are disclosed wherein aromatic compounds which may be treated for removal of deleterious substances are reacted with olefin compounds, which may also be treated for contaminant removal, in the presence of acidic zeolite catalyst(s) to produce the desired alkyl aromatic compound(s). The aromatic and preferably also the olefin feeds are treated substantially to remove contaminants, particularly the nitrogen compounds contained therein, before they are brought together for reaction in the presence of the zeolite catalyst(s). In accordance with the present invention, it has been found that feed pretreatment for removal of nitrogen compounds significantly improves the run length and life of the acidic zeolite catalyst(s). The feed pretreatment of this invention may include the steps of distillation, extraction, and/or adsorption by solid adsorbent, which may be regenerated in accordance with further embodiments of this invention.

    Abstract translation: 公开了用于生产烷基芳族化合物的改进的一体化方法,其中可以处理去除有害物质的芳族化合物与烯烃化合物反应,烯烃化合物也可以在酸性沸石催化剂存在下进行处理以除去污染物, 产生所需的烷基芳族化合物。 在沸石催化剂的存在下,芳族化合物和烯烃进料基本上被处理以除去污染物,特别是其中所含的氮化合物,然后将它们聚集在一起进行反应。 根据本发明,已经发现用于除去氮化合物的进料预处理显着地改善了酸性沸石催化剂的运行长度和使用寿命。 本发明的进料预处理可以包括根据本发明的其它实施方案可以再生的固体吸附剂的蒸馏,萃取和/或吸附的步骤。

    PROCESS FOR REDUCING THE BENZENE CONTENT GASOLINE
    3.
    发明申请
    PROCESS FOR REDUCING THE BENZENE CONTENT GASOLINE 审中-公开
    降低苯并呋喃含量汽油的方法

    公开(公告)号:WO2013028215A1

    公开(公告)日:2013-02-28

    申请号:PCT/US2011/062635

    申请日:2011-11-30

    Abstract: A process is described for alkylating benzene contained in a refinery gasoline stream, in which the refinery gasoline stream is contacted with an alkylating agent comprising one or more C2 to C5 olefins in an alkylation reaction zone under alkylation conditions to produce an alkylated effluent. The alkylation reaction zone comprises at least a first alkylation reaction stage and a second alkylation reaction stage and a portion of said alkylating agent is fed to each of said first and second alkylation reaction stages so that, although the molar ratio of alkylatable aromatic to alkylating agent in the total feed to the alkylation reaction zone is less than 1, the molar ratio of alkylatable aromatic to alkylating agent at the inlet of each of the first and second alkylation reaction stages is at least 1.0..

    Abstract translation: 描述了一种用于烷基化炼制汽油流中所含的苯的方法,其中炼制汽油流在烷基化反应区在烷基化条件下与包含一个或多个C 2至C 5烯烃的烷基化剂接触以产生烷基化流出物。 烷基化反应区包含至少第一烷基化反应阶段和第二烷基化反应阶段,并且将所述烷基化剂的一部分进料至所述第一烷基化反应阶段和第二烷基化反应阶段,使得尽管可烷基化芳族化合物与烷基化剂的摩尔比 在烷基化反应区的进料总量小于1时,第一和第二烷基化反应阶段的入口处的可烷基化芳族化合物与烷基化剂的摩尔比为至少1.0。

    PROCESS FOR REDUCING THE BENZENE CONTENT OF GASOLINE
    4.
    发明申请
    PROCESS FOR REDUCING THE BENZENE CONTENT OF GASOLINE 审中-公开
    减少汽油的苯含量的方法

    公开(公告)号:WO2012108924A1

    公开(公告)日:2012-08-16

    申请号:PCT/US2011/062626

    申请日:2011-11-30

    Abstract: In a process for alkylating benzene contained in a benzene-containing refinery gasoline stream, the benzene-containing refinery gasoline stream is contacted with an alkylating agent selected from one or more C2 to C5 olefins in at least one alkylation reaction zone under alkylation conditions to produce an alkylated effluent which has reduced benzene content as compared with said refinery gasoline stream and is essentially free of said alkylating agent. An aliquot of the alkylated effluent is then recycled to the one at least one alkylation reaction zone such that the molar ratio of alkylatable aromatic compounds to said alkylating agent in the combined refinery gasoline and recycle streams introduced into the at least one alkylation reaction zone is at least 1.0:1.

    Abstract translation: 在含苯精炼汽油流中含苯的烷基化方法中,在烷基化条件下,在含至少一个烷基化反应区的含苯精炼汽油流与选自一种或多种C 2至C 5烯烃的烷基化剂接触以产生 烷基化流出物与所述精炼汽油流相比具有降低的苯含量,并且基本上不含所述烷化剂。 然后将烷基化流出物的等分试样再循环到一个至少一个烷基化反应区,使得引入到至少一个烷基化反应区的组合炼油厂汽油和再循环料流中的可烷基化芳族化合物与所述烷基化剂的摩尔比在 至少1.0:1。

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