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    Dual-loop xylene isomerization process
    4.
    发明授权
    Dual-loop xylene isomerization process 有权
    双环二甲苯异构化工艺

    公开(公告)号：US5977420A

    公开(公告)日：1999-11-02

    申请号：US139463

    申请日：1998-08-25

    申请人： Jeevan S. Abichandani ,  Jeffrey S. Beck ,  Stephen H. Brown ,  Ronald J. Cimini ,  Ivy D. Johnson ,  Dimitris K. Liguras ,  David L. Stern

    发明人： Jeevan S. Abichandani ,  Jeffrey S. Beck ,  Stephen H. Brown ,  Ronald J. Cimini ,  Ivy D. Johnson ,  Dimitris K. Liguras ,  David L. Stern

    IPC分类号： C07C15/08 ,  C07C1/00 ,  C07C5/22

    CPC分类号： C07C15/08 ,  C07C2529/00

    摘要： A method for increasing the efficiency of xylene isomerization by using a two stage isomerization process. In the first stage of the process, a C.sub.9.sup.+ aromatics feedstock is subjected to ethylbenzene conversion and xylene isomerization. Non-C.sub.8 aromatics are removed from the effluent, which is then processed in a second stage of the process to remove para-xylene and isomerize the para-xylene depleted effluent. The effluent from the second stage isomerization unit is then recycled into the inlet of the second stage of the process and a slip stream from the para-xylene separator is recycled to the feedstock and to the effluent of the ethylbenzene conversion unit. In this way, the production of para-xylene is maximized. In a preferred embodiment, toluene is co-fed into the feedstock to minimize the loss of xylenes during the ethylbenzene conversion reaction.

    摘要翻译： 一种通过使用两级异构化方法提高二甲苯异构化效率的方法。 在该方法的第一阶段，C9 +芳烃原料进行乙苯转化和二甲苯异构化。 从流出物中除去非-C 8芳族化合物，然后在该方法的第二阶段中处理以除去对二甲苯并使对二甲苯贫乏的流出物异构化。 然后将来自第二级异构化单元的流出物再循环到该方法的第二阶段的入口中，并且来自对二甲苯分离器的滑流再循环至原料和乙苯转化单元的流出物。 以这种方式，对二甲苯的生产最大化。 在优选的实施方案中，将甲苯共同进料到原料中以使乙苯转化反应期间二甲苯的损失最小化。

    Integration of steam reforming unit and cogeneration power plant
    5.
    发明授权
    Integration of steam reforming unit and cogeneration power plant 失效
    蒸汽重整单元和热电联产电站的整合

    公开(公告)号：US5624964A

    公开(公告)日：1997-04-29

    申请号：US471976

    申请日：1995-06-06

    申请人： Ronald J. Cimini ,  David O. Marler ,  Reuel Shinnar ,  Gerald J. Teitman

    发明人： Ronald J. Cimini ,  David O. Marler ,  Reuel Shinnar ,  Gerald J. Teitman

    IPC分类号： C01B3/44 ,  C07C27/06

    CPC分类号： C01B3/44 ,  Y02E20/16 ,  Y02P20/584

    摘要： A process for integration of a steam reforming unit and a cogeneration power plant in which said steam reforming unit comprises two communicating fluid beds; the first fluid bed comprising a reformer containing catalyst and which is used to react steam and light hydrocarbons at conditions sufficient to produce a mixture comprising synthesis gas hydrogen, carbon monoxide, and carbon dioxide, the second fluid bed comprising a combustor-regenerator which receives spent catalyst from the first fluid bed and which provides heat to heat the catalyst and balance the reaction endotherm, by combusting fuel gas in direct contact with the catalyst producing hot flue gas; said cogeneration power plant comprises a gas turbine equipped with an air compressor and a combustor; said integration which comprises drawing off a portion of compressed air from the power plant gas turbine air compressor leaving remainder compressed air; introducing the drawn off compressed air to the combustor-regenerator; mixing the hot flue gas from the combustor-regenerator with the remainder of the compressed air to produce a recombined gas stream and feeding this recombined gas stream to the combustor of the cogeneration gas turbine power plant.

    摘要翻译： 一种用于整合蒸汽重整单元和热电联产电厂的方法，其中所述蒸汽重整单元包括两个连通流体床; 所述第一流化床包括含有重整器的催化剂，其用于在足以产生包含合成气氢，一氧化碳和二氧化碳的混合物的条件下反应蒸汽和轻质烃，所述第二流化床包括燃烧器再生器 催化剂，其提供热量以加热催化剂并平衡反应吸热，通过燃烧与产生热烟道气的催化剂直接接触的燃料气体; 所述热电联产电厂包括配备有空气压缩机和燃烧器的燃气轮机; 所述集成包括从发电厂燃气轮机空气压缩机中取出一部分压缩空气，留下剩余的压缩空气; 将抽出的压缩空气引入燃烧器 - 再生器; 将来自燃烧器 - 再生器的热烟气与剩余的压缩空气混合以产生重组气流，并将该重组气流送入热电联产燃气轮机发电厂的燃烧器。

    Reduction of the Bromine Index of linear alkylbenzenes
    6.
    发明授权
    Reduction of the Bromine Index of linear alkylbenzenes 有权
    线性烷基苯的溴指数的降低

    公开(公告)号：US07214840B2

    公开(公告)日：2007-05-08

    申请号：US10897528

    申请日：2004-07-23

    申请人： Frederick Y. Lo ,  David L. Stern ,  Ronald J. Cimini ,  James L. Propp

    发明人： Frederick Y. Lo ,  David L. Stern ,  Ronald J. Cimini ,  James L. Propp

    IPC分类号： C07C2/68

    CPC分类号： C07C2/66 ,  C07C7/13 ,  C07C2529/70 ,  C07C15/107

    摘要： In a process for reducing the Bromine Index of a feed containing a linear alkylbenzene and bromine-reactive olefinic hydrocarbon contaminants, the feed is contacted under conditions effective to remove bromine-reactive olefinic hydrocarbon contaminants with a catalyst comprising zeolite Y catalyst having an alpha value of about 2 to about 30. The feed will normally also contain benzene and linear paraffin remaining from the alkylation process used to produce the linear alkylbenzene.

    摘要翻译： 在减少含有直链烷基苯和溴反应性烯烃污染物的进料的溴指数的方法中，使用含有沸石Y催化剂的催化剂有效除去溴反应性烯烃污染物的条件进料进料接触，该催化剂的α值为 约2至约30.进料通常还含有从用于生产直链烷基苯的烷基化方法残留的苯和线性链烷烃。

    Reduction of the Bromine Index of linear alkylbenzenes
    7.
    发明授权
    Reduction of the Bromine Index of linear alkylbenzenes 有权
    线性烷基苯的溴指数的降低

    公开(公告)号：US07390933B2

    公开(公告)日：2008-06-24

    申请号：US11729489

    申请日：2007-03-29

    申请人： Frederick Y. Lo ,  David L. Stern ,  Ronald J. Cimini ,  James L. Propp

    发明人： Frederick Y. Lo ,  David L. Stern ,  Ronald J. Cimini ,  James L. Propp

    IPC分类号： C07C5/05 ,  C07C5/03

    CPC分类号： C07C2/66 ,  C07C7/13 ,  C07C2529/70 ,  C07C15/107

    摘要： In a process for reducing the Bromine Index of a feed containing a linear alkylbenzene and bromine-reactive olefinic hydrocarbon contaminants, the feed is contacted under conditions effective to remove bromine-reactive olefinic hydrocarbon contaminants with a catalyst comprising zeolite Y catalyst having an alpha value of about 2 to about 30. The feed will normally also contain benzene and linear paraffin remaining from the alkylation process used to produce the linear alkylbenzene.

    摘要翻译： 在减少含有直链烷基苯和溴反应性烯烃污染物的进料的溴指数的方法中，使用含有沸石Y催化剂的催化剂有效除去溴反应性烯烃污染物的条件进料进料接触，该催化剂的α值为 约2至约30.进料通常还含有从用于生产直链烷基苯的烷基化方法残留的苯和线性链烷烃。

    Production of dialkylbenzenes
    9.
    发明授权
    Production of dialkylbenzenes 有权
    生产二烷基苯

    公开(公告)号：US07361798B2

    公开(公告)日：2008-04-22

    申请号：US10946553

    申请日：2004-09-21

    申请人： Michael C. Clark ,  Ronald J. Cimini ,  Jane C. Cheng ,  David L. Stern ,  John Scott Buchanan

    发明人： Michael C. Clark ,  Ronald J. Cimini ,  Jane C. Cheng ,  David L. Stern ,  John Scott Buchanan

    IPC分类号： C07C5/22 ,  C07C1/20

    CPC分类号： C07C6/126 ,  Y02P20/582 ,  C07C15/02

    摘要： The invention relates to a process for producing a desired dialkylbenzene isomer having a formula R2C6H4, where R is an alkyl substituent, by contacting a polyalkylbenzene compound of formula RnC6H6-n, where n is an integer between 2 and 4, with a monoalkylbenzene compound of formula RC6H5 in the presence of a molecular sieve catalyst under reaction conditions sufficient to produce said dialkybenzene isomer. The preferred molecular sieve catalysts have pores or surface cavities greater than 5.6 Angstroms in diameter and/or an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07, and 3.42±0.07 Angstrom.

    摘要翻译： 本发明涉及制备具有式R 2 C 6 H 4 H 4的所需二烷基苯异构体的方法，其中R是烷基取代基， 通过使式R n 6 C 6 H 6-n N的多烷基苯化合物（其中n是2和4之间的整数）与单烷基苯 在分子筛催化剂存在下，在足以产生所述二烷基苯异构体的反应条件下，式RC 6 H 5 H 5的化合物。 优选的分子筛催化剂具有直径大于5.6埃的孔或表面空腔和/或包括在12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃处的d间距最大值的X射线衍射图。