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    • 5. 发明申请
    • PROCESS FOR PRODUCING CUMENE
    • 生产过程的方法
    • US20110201858A1
    • 2011-08-18
    • US13119789
    • 2009-09-23
    • Shyh-Yuan Henry HwangDana E. JohnsonJoseph C. PetersChung-Ming ChiKevin J. FallonFrancis A. Demers
    • Shyh-Yuan Henry HwangDana E. JohnsonJoseph C. PetersChung-Ming ChiKevin J. FallonFrancis A. Demers
    • C07C2/00
    • C07C409/10C07C2/66C07C2/864C07C29/145C07C37/08C07C45/53C07C407/00C07C2529/08C07C2529/18C07C2529/40C07C2529/65C07C2529/70C07C15/085C07C31/10C07C49/08C07C39/04
    • In a process for producing cumene from acetone and benzene, a feed stream comprising acetone is contacted with hydrogen in the presence of a hydrogenation catalyst in a first reaction zone under hydrogenation conditions sufficient to convert at least part of the acetone to isopropanol and produce a first liquid effluent stream rich in isopropanol and a first vapor stream rich in unreacted hydrogen. Benzene is then added to at least part of the first liquid effluent stream, without intermediate purification of the first liquid effluent stream, and optionally to at least part of the first vapor stream, to form a second feed stream. The second feed stream is then contacted with an alkylation catalyst in a second reaction zone separate from the first reaction zone under alkylation conditions sufficient to maintain at least part of the second feed stream in the liquid phase and to cause at least part of the isopropanol in the second feed stream to react with the benzene to form cumene and water and produce a second effluent stream comprising at least cumene, water and unreacted benzene. Hydrogen is separated from the first vapor stream and/or the second effluent stream. At least part of the hydrogen is recycled to the first reaction zone and/or purged from the system.
    • 在从丙酮和苯生产异丙基苯的方法中,在氢化条件下,在氢化催化剂存在下,将含丙酮的进料流与氢气接触,在氢化条件下,将至少部分丙酮转化成异丙醇,并产生第一 富含异丙醇的液体流出物流和富含未反应氢的第一蒸气流。 然后将苯添加到至少部分第一液体流出物流中,而不用第一液体流出物流的中间纯化,以及任选地至少部分第一蒸气流,形成第二进料流。 然后在足以将至少部分第二进料流保持在液相中并使至少部分异丙醇在烷基化条件下与第一反应区分离的第二反应区中的第二进料流与烷基化催化剂接触 所述第二进料流与苯反应以形成异丙基苯和水,并产生包含至少异丙基苯,水和未反应的苯的第二流出物流。 氢气与第一蒸气流和/或第二流出物流分离。 至少部分氢被再循环到第一反应区和/或从系统中清除。
    • 6. 发明授权
    • Alkylaromatics production
    • 烷基芳烃生产
    • US07745676B2
    • 2010-06-29
    • US11881921
    • 2007-07-30
    • Michael C. ClarkVijay NandaMaruti BhandarkarJoseph C. PetersChung-Ming ChiBrian Maerz
    • Michael C. ClarkVijay NandaMaruti BhandarkarJoseph C. PetersChung-Ming ChiBrian Maerz
    • C07C2/66
    • C07C2/66C07C15/073C07C15/02
    • A process is described for producing an alkylaromatic compound, in which a first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into a first alkylation reaction zone comprising a first alkylation catalyst. The first alkylation reaction zone is operated under conditions effective to cause alkylation of the alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the vapor phase. A first effluent comprising the alkylaromatic compound and unreacted alkylatable aromatic compound is withdrawn from the first alkylation reaction zone and at least part of the unreacted alkylatable aromatic compound is treated to remove catalyst poisons therefrom and produce a treated unreacted alkylatable aromatic stream. At least part of the unreacted alkylatable aromatic compound and a third feed comprising said alkene is introduced into a second alkylation reaction zone comprising a second alkylation catalyst. The second alkylation reaction zone is operated under conditions effective to cause alkylation of the unreacted alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the liquid phase. A second effluent comprising said alkylaromatic compound is withdrawn from the second alkylation reaction zone.
    • 描述了用于生产烷基芳族化合物的方法,其中将包含可烷基化芳族化合物的第一种进料和包含烯烃的第二种进料引入到包含第一烷基化催化剂的第一烷基化反应区中。 第一烷基化反应区在有效使烷基化芳族化合物被烯烃烷基化以产生所述烷基芳族化合物的条件下运行,条件是使可烷基化芳族化合物至少主要在气相中。 包含烷基芳族化合物和未反应的可烷基化芳族化合物的第一流出物从第一烷基化反应区取出,并且处理至少部分未反应的可烷基化芳族化合物以除去其中的催化剂毒物并产生经处理的未反应的可烷基化芳族物流。 将至少部分未反应的可烷基化芳族化合物和包含所述烯烃的第三进料引入到包含第二烷基化催化剂的第二烷基化反应区中。 第二烷基化反应区在有效使得未反应的可烷基化芳族化合物被烯烃烷基化以产生所述烷基芳族化合物的条件下运行,条件是使可烷基化芳族化合物至少主要在液相中。 从第二烷基化反应区取出包含所述烷基芳族化合物的第二流出物。
    • 9. 发明授权
    • Process for the production of tertiary butylethylbenzene
    • 生产叔丁基乙基苯的方法
    • US5434325A
    • 1995-07-18
    • US277787
    • 1994-07-20
    • Shiou-Shan ChenJoseph C. Peters
    • Shiou-Shan ChenJoseph C. Peters
    • C07C2/66
    • C07C2/66C07C2529/70Y02P20/582
    • The present invention provides an alkylation process which is highly selective towards the production of para-tertiarybutylethylbenzene in high yield and in high para isomer content, while minimizing the development of unwanted by-products and impurities during the alkylation reaction. In accordance with the process, a feed stream mixture comprising the olefin alkylating agent and a molar excess of an aromatic hydrocarbon substrate is introduced into the inlet of a reactor zone and through a bed of active zeolite alkylation catalyst under alkylation conditions such that substantially all of the olefin reacts with the aromatic substrate to produce a mixture comprising the alkylated product and unreacted aromatic compound. This mixture is continuously withdrawn from the reactor zone as reactor effluent, after which the effluent is split into a product stream and recycle stream. The recycle stream is continuously recirculated back into the inlet of said reactor zone, preferably after being first combined with fresh feed stream mixture, in an amount such that the quantity of said aromatic compound and said olefin present in said reaction zone prior to contact with said catalyst is maintained at a preferred mole ratio greater than 10 to 1.
    • 本发明提供了一种烷基化方法,其以高产率和高对位异构体含量生产对 - 叔丁基苯是高选择性的,同时最小化烷基化反应期间不期望的副产物和杂质的发展。 根据该方法,将包含烯烃烷基化剂和摩尔过量的芳烃底物的进料流混合物在烷基化条件下引入反应器区的入口并通过活性沸石烷基化催化剂床,使得基本上全部 烯烃与芳族底物反应产生包含烷基化产物和未反应的芳族化合物的混合物。 将该混合物作为反应器流出物从反应器区域连续取出,然后将流出物分成产物流和再循环流。 再循环流连续再循环回所述反应器区的入口,优选在与新鲜进料流混合物首次混合之后,其量使得所述芳族化合物和所述烯烃在与所述反应区接触之前存在于所述反应区中的量 催化剂保持在大于10比1的优选摩尔比。