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    Processes for the reduction of alkylation catalyst deactivation utilizing low silica to alumina ratio catalyst
    4.
    发明授权
    Processes for the reduction of alkylation catalyst deactivation utilizing low silica to alumina ratio catalyst 有权
    使用低二氧化硅与氧化铝比的催化剂还原烷基化催化剂失活的方法

    公开(公告)号：US09556083B2

    公开(公告)日：2017-01-31

    申请号：US13212234

    申请日：2011-08-18

    申请人： James Butler ,  Xin Xiao ,  Jim Merrill

    发明人： James Butler ,  Xin Xiao ,  Jim Merrill

    IPC分类号： C07C2/66 ,  B01J29/06 ,  B01J29/70 ,  C07C6/12 ,  C07C7/12 ,  C07C15/073

    CPC分类号： C07C2/66 ,  B01J29/06 ,  B01J29/7057 ,  B01J2219/00006 ,  C07C6/126 ,  C07C7/12 ,  C07C15/073 ,  C07C2529/08 ,  C07C2529/70 ,  Y02P20/52 ,  Y02P20/584 ,  Y02P20/588 ,  C07C15/04

    摘要： Alkylation systems and methods of minimizing alkylation catalyst regeneration are described herein. The alkylation systems generally include a preliminary alkylation system adapted to receive an input stream including an alkyl aromatic hydrocarbon and contact the input stream with a preliminary alkylation catalyst disposed therein to form a first output stream. The preliminary alkylation catalyst generally includes a zeolite catalyst having a SiO2/Al2O3 ratio of less than about 25. The alkylation systems further include a first alkylation system adapted to receive the first output stream and contact the first output stream with a first alkylation catalyst disposed therein and an alkylating agent to form a second output stream.

    摘要翻译： 本文描述了使烷基化催化剂再生最小化的烷基化系统和方法。 烷基化系统通常包括适于接收包含烷基芳族烃的输入流并将输入流与设置在其中的预置烷基化催化剂接触以形成第一输出流的初步烷基化系统。 初步烷基化催化剂通常包括SiO 2 / Al 2 O 3比小于约25的沸石催化剂。烷基化系统还包括适于接收第一输出流并将第一输出流与置于其中的第一烷基化催化剂接触的第一烷基化系统 和烷基化剂以形成第二输出流。

    Addition of a base to enhance product yield in alkylation reactions
    5.
    发明授权
    Addition of a base to enhance product yield in alkylation reactions 有权
    添加碱以提高烷基化反应中的产物收率

    公开(公告)号：US08785706B2

    公开(公告)日：2014-07-22

    申请号：US13457508

    申请日：2012-04-27

    申请人： Sivadinarayana Chinta ,  Joseph L. Thorman

    发明人： Sivadinarayana Chinta ,  Joseph L. Thorman

    IPC分类号： C07C15/073 ,  C07C15/46

    CPC分类号： B01J31/26 ,  B01J29/061 ,  B01J29/86 ,  B01J2229/38 ,  C07C2/864 ,  C07C2529/70 ,  C07C15/46 ,  C07C15/073

    摘要： A process for making styrene including providing toluene, a co-feed, and a C1 source to a reactor containing a catalyst having acid sites and reacting toluene with the C1 source in the presence of the catalyst and the co-feed to form a product stream containing ethylbenzene and styrene, wherein the C1 source is selected from methanol, formaldehyde, formalin, trioxane, methylformcel, paraformaldehyde, methylal, dimethyl ether, and wherein the co-feed removes at least a portion of the acid sites on the catalyst. The co-feed can be selected from the group of aniline, amines, cresol, anisol, and combinations thereof.

    摘要翻译： 一种制备苯乙烯的方法，包括在含有具有酸性位点的催化剂的反应器中提供甲苯，共进料和C1源，并在催化剂和共进料存在下使甲苯与C1源反应形成产物流 含有乙苯和苯乙烯，其中C1源选自甲醇，甲醛，福尔马林，三恶烷，甲基甲缩醛，多聚甲醛，甲缩醛，二甲醚，并且其中所述共进料除去催化剂上至少一部分酸性位点。 共进料可以选自苯胺，胺，甲酚，茴香醚及其组合。

    Process for producing ethylbenzene
    8.
    发明授权
    Process for producing ethylbenzene 有权
    生产乙苯的方法

    公开(公告)号：US07498472B2

    公开(公告)日：2009-03-03

    申请号：US11752525

    申请日：2007-05-23

    申请人： Michael A. Schultz ,  Steven P. Lankton ,  Constante P. Tagamolila

    发明人： Michael A. Schultz ,  Steven P. Lankton ,  Constante P. Tagamolila

    IPC分类号： C07C15/073 ,  C07C2/64

    CPC分类号： C07C15/073 ,  C07C2/66 ,  C07C6/126

    摘要： This ethylbenzene process involves contacting, in an alkylation zone, a first benzene recycle stream and an ethylene feed stream with an alkylation catalyst to form ethylbenzene. In a transalkylation zone, a polyethylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional ethylbenzene. The effluents are passed into a dividing wall distillation column. An ethylbenzene stream is removed from an intermediate point of the dividing wall fractionation column; a first benzene recycle stream is removed from a first end and a flux oil stream is removed from a second end. A second benzene recycle stream is removed from an intermediate point located between the first end and the ethylbenzene stream. A polyethylbenzene stream is removed from an intermediate point of located between the second end and the ethylbenzene stream.

    摘要翻译： 该乙苯方法包括在烷基化区中与烷基化催化剂接触第一苯再循环流和乙烯进料流以形成乙苯。 在烷基转移区中，将聚乙苯再循环流和第二苯再循环流与烷基转移催化剂接触以形成另外的乙苯。 将废水排入分隔壁蒸馏塔。 从分隔壁分馏塔的中间点除去乙苯料流; 从第一端除去第一苯回收物流，并从第二端除去助熔油流。 从位于第一端和乙苯料流之间的中间点除去第二苯回收物流。 从位于第二端和乙苯料流之间的中间点除去多乙基苯料流。

    Process and apparatus for preparing ethylbenzene using vapor phase alkylation and liquid phase transalkylation
    9.
    发明申请
    Process and apparatus for preparing ethylbenzene using vapor phase alkylation and liquid phase transalkylation 审中-公开
    使用气相烷基化和液相烷基转移制备乙苯的方法和设备

    公开(公告)号：US20080033222A1

    公开(公告)日：2008-02-07

    申请号：US11805047

    申请日：2007-05-22

    申请人： Michael Clark ,  Vijay Nanda ,  Carlos Lopez ,  Brian Maerz ,  Maruti Bhandarkar

    发明人： Michael Clark ,  Vijay Nanda ,  Carlos Lopez ,  Brian Maerz ,  Maruti Bhandarkar

    IPC分类号： C07C15/073

    CPC分类号： C07C2/66 ,  C07C5/2708 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70 ,  C07C15/073

    摘要： A process for preparing ethylbenzene from benzene and ethylene in which a vapor phase alkylation reactor is combined with a liquid phase transalkylation reactor wherein the xylenes content of the ethylbenzene product is less than 700 wppm. Also disclosed are ethylbenzene processes in which a series-arranged or combined vapor phase alkylation/transalkylation reaction zone is retrofitted to have a vapor phase alkylation reactor and a liquid phase transalkylation reactor, and in which a parallel-arranged vapor phase alkylation reactor and vapor phase transalkylation reactor is retrofitted to have a vapor phase alkylation reactor and liquid phase transalkylation reactor. An apparatus for the practice of the ethylbenzene process of this invention is disclosed.

    摘要翻译： 一种从苯和乙烯制备乙苯的方法，其中气相烷基化反应器与液相烷基转移反应器结合，其中乙苯产物的二甲苯含量小于700wppm。 还公开了乙苯工艺，其中串联或组合的气相烷基化/烷基转移反应区被改造成具有气相烷基化反应器和液相烷基转移反应器，其中平行排列的气相烷基化反应器和气相 烷基转移反应器被改装成具有气相烷基化反应器和液相烷基转移反应器。 公开了一种用于实施本发明的乙苯方法的装置。