Use of catalytic distillation for benzene separation and purification
    1.
    发明授权
    Use of catalytic distillation for benzene separation and purification 有权
    使用催化蒸馏分离和纯化苯

    公开(公告)号:US08395002B2

    公开(公告)日:2013-03-12

    申请号:US12720173

    申请日:2010-03-09

    IPC分类号: C07C5/09

    摘要: A process for recovering benzene, the process including: feeding hydrogen and a hydrocarbon fraction comprising benzene, components lighter than benzene, components heavier than benzene, and diolefins to a catalytic distillation reactor system comprising at least one reaction zone comprising a hydrogenation catalyst; concurrently in the catalytic distillation reactor system: contacting the diolefins and hydrogen in the presence of the hydrogenation catalyst to selectively hydrogenate at least a portion of the diolefins; and fractionating the hydrocarbon fraction to form a fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; recovering the heavies fraction from the first catalytic distillation reactor system as a bottoms fraction; and withdrawing the fraction comprising benzene and other C6 hydrocarbons from the catalytic distillation reactor system as a benzene concentrate fraction.

    摘要翻译: 一种回收苯的方法,该方法包括将包含苯,比苯轻的组分,比苯重的组分和二烯烃的氢气和烃馏分进料到包含至少一个包含氢化催化剂的反应区的催化蒸馏反应器系统; 同时在催化蒸馏反应器系统中:在氢化催化剂的存在下使二烯烃和氢气接触以选择性氢化至少一部分二烯烃; 并分馏烃馏分以形成包含苯和其它C 6烃的馏分,以及包含C7 +烃的重馏分; 从第一催化蒸馏反应器系统中回收重质馏分作为塔底馏分; 并从催化蒸馏反应器系统中抽出包含苯和其它C 6烃的馏分作为苯浓缩物馏分。

    USE OF CATALYTIC DISTILLATION FOR BENZENE SEPARATION AND PURIFICATION
    2.
    发明申请
    USE OF CATALYTIC DISTILLATION FOR BENZENE SEPARATION AND PURIFICATION 有权
    催化蒸馏用于苯酚分离和纯化的应用

    公开(公告)号:US20100228063A1

    公开(公告)日:2010-09-09

    申请号:US12720173

    申请日:2010-03-09

    IPC分类号: C07C5/10

    摘要: A process for recovering benzene, the process including: feeding hydrogen and a hydrocarbon fraction comprising benzene, components lighter than benzene, components heavier than benzene, and diolefins to a catalytic distillation reactor system comprising at least one reaction zone comprising a hydrogenation catalyst; concurrently in the catalytic distillation reactor system: contacting the diolefins and hydrogen in the presence of the hydrogenation catalyst to selectively hydrogenate at least a portion of the diolefins; and fractionating the hydrocarbon fraction to form a fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; recovering the heavies fraction from the first catalytic distillation reactor system as a bottoms fraction; and withdrawing the fraction comprising benzene and other C6 hydrocarbons from the catalytic distillation reactor system as a benzene concentrate fraction.

    摘要翻译: 一种回收苯的方法,该方法包括将包含苯,比苯轻的组分,比苯重的组分和二烯烃的氢气和烃馏分进料到包含至少一个包含氢化催化剂的反应区的催化蒸馏反应器系统; 同时在催化蒸馏反应器系统中:在氢化催化剂的存在下使二烯烃和氢气接触以选择性氢化至少一部分二烯烃; 并分馏烃馏分以形成包含苯和其它C 6烃的馏分,以及包含C7 +烃的重馏分; 从第一催化蒸馏反应器系统中回收重质馏分作为塔底馏分; 并从催化蒸馏反应器系统中抽出包含苯和其它C 6烃的馏分作为苯浓缩物馏分。

    Process for the treatment of light naphtha hydrocarbon streams
    5.
    发明授权
    Process for the treatment of light naphtha hydrocarbon streams 有权
    用于处理轻石脑油烃流的方法

    公开(公告)号:US07153415B2

    公开(公告)日:2006-12-26

    申请号:US10285852

    申请日:2002-11-01

    IPC分类号: C10G45/00 C10G29/20

    CPC分类号: C10G45/02 C10G2400/02

    摘要: A light cracked naphtha is treated to convert mercaptans to sulfides and saturate dienes and then subjected to destructive hydrodesulfurization (HDS) to convert the organic sulfur compounds to hydrogen sulfide. The recombinant mercaptans formed by reaction of hydrogen sulfide and olefins at the outlet of the HDS are generally heavier than the light cracked naphtha is fractionated in admixture with a heavy cracked naphtha. A low sulfur content light cracked naphtha is produced as an overheads and the major portion of the mercaptans leave with heavy cracked naphtha as bottoms. It also advantageous to pass the heavy cracked naphtha through the HDS in admixture with the light cracked naphtha, since the recombinant mercaptans formed with the heavy cracked naphtha olefins (which displace some of the lower mercaptans which would form the light cracked naphtha olefins) will be even higher boiling and easier to separate by fractionation.

    摘要翻译: 处理轻质裂解石脑油,将硫醇转化为硫化物,饱和二烯,然后进行破坏性加氢脱硫(HDS),将有机硫化合物转化为硫化氢。 在HDS出口处通过硫化氢和烯烃的反应形成的重组硫醇通常比轻质裂化石脑油与重质裂解石脑油混合分馏更重。 产生低硫含量的轻质裂化石脑油作为塔顶馏出物,硫醇的主要部分以重的裂解石脑油为底部。 由于与重质裂解石脑油烯烃(其将形成轻质裂化石脑油烯烃的一部分低级硫醇取代)形成的重组硫醇将是重要的硫醇与轻质裂化石脑油混合,所以将重质裂解石脑油与HDS混合也是有利的 甚至更高沸点,更容易通过分馏分离。

    Deisobutenizer
    6.
    发明授权
    Deisobutenizer 有权
    脱异味酶

    公开(公告)号:US07982086B2

    公开(公告)日:2011-07-19

    申请号:US12364961

    申请日:2009-02-03

    IPC分类号: C07C5/25

    摘要: A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pressure and concurrently: (i) converting at least a portion of the 1-butene to 2-butene, and (ii) separating isobutene from the 2-butene; recovering a first overheads fraction comprising isobutene from the first column; recovering a first bottoms fraction comprising isobutene, 2-butene, and unreacted 1-butene from the first column; introducing the first bottoms fraction into a top portion of a second column comprising a fractionation column operating at a second pressure lower than the first pressure; separating the first bottoms into a second overheads fraction comprising isobutene and 1-butene and a second bottoms fraction comprising 2-butene; compressing the second overheads fraction; and introducing the compressed second overheads fraction to a lower portion of the first column.

    摘要翻译: 一种从正丁烯中分离异丁烯的方法,包括:将氢气和包含异丁烯,1-丁烯和2-丁烯的进料流引入到包含在第一压力下操作的加氢异构化催化剂的反应区的第一塔中,同时:(i )将至少一部分1-丁烯转化为2-丁烯,和(ii)从2-丁烯中分离异丁烯; 从第一塔回收包含异丁烯的第一塔顶馏分; 从第一塔回收包含异丁烯,2-丁烯和未反应的1-丁烯的第一塔底馏分; 将第一塔底馏分引入第二塔的顶部,其包括在低于第一压力的第二压力下操作的分馏塔; 将第一塔底馏分分离成包含异丁烯和1-丁烯的第二塔顶馏分和包含2-丁烯的第二塔底馏分; 压缩第二开销部分; 并将压缩的第二塔顶馏分引入第一塔的下部。

    DEISOBUTENIZER
    7.
    发明申请

    公开(公告)号:US20100197987A1

    公开(公告)日:2010-08-05

    申请号:US12364961

    申请日:2009-02-03

    IPC分类号: C07C5/27

    摘要: A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pressure and concurrently: (i) converting at least a portion of the 1-butene to 2-butene, and (ii) separating isobutene from the 2-butene; recovering a first overheads fraction comprising isobutene from the first column; recovering a first bottoms fraction comprising isobutene, 2-butene, and unreacted 1-butene from the first column; introducing the first bottoms fraction into a top portion of a second column comprising a fractionation column operating at a second pressure lower than the first pressure; separating the first bottoms into a second overheads fraction comprising isobutene and 1-butene and a second bottoms fraction comprising 2-butene; compressing the second overheads fraction; and introducing the compressed second overheads fraction to a lower portion of the first column.

    摘要翻译: 一种从正丁烯中分离异丁烯的方法,包括:将氢气和包含异丁烯,1-丁烯和2-丁烯的进料流引入到包含在第一压力下操作的加氢异构化催化剂的反应区的第一塔中,同时:(i )将至少一部分1-丁烯转化为2-丁烯,和(ii)从2-丁烯中分离异丁烯; 从第一塔回收包含异丁烯的第一塔顶馏分; 从第一塔回收包含异丁烯,2-丁烯和未反应的1-丁烯的第一塔底馏分; 将第一塔底馏分引入第二塔的顶部,其包括在低于第一压力的第二压力下操作的分馏塔; 将第一塔底馏分分离成包含异丁烯和1-丁烯的第二塔顶馏分和包含2-丁烯的第二塔底馏分; 压缩第二开销部分; 并将压缩的第二塔顶馏分引入第一塔的下部。