Process for producing ethylbenzene
    4.
    发明授权
    Process for producing ethylbenzene 有权
    生产乙苯的方法

    公开(公告)号:US07525003B2

    公开(公告)日:2009-04-28

    申请号:US11752508

    申请日:2007-05-23

    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 where a benzene overhead and a benzene side draw are removed and recycled. An ethylbenzene stream product stream is also removed. The remainder, largely polyethylbenzene and tar, is passed to a polyethylbenzene column for separation. The separated polyethylbenzene is recycled to the transalkylation reactor.

    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。 流出物被送入分离塔蒸馏塔,其中苯塔顶馏出物和苯侧馏分被除去并再循环。 还除去乙苯料流产物流。 其余的,主要是聚乙苯和焦油,被送到聚乙苯塔进行分离。 将分离的聚乙苯再循环至烷基转移反应器。

    Apparatus for Producing Ethylbenzene or Cumene
    5.
    发明申请
    Apparatus for Producing Ethylbenzene or Cumene 有权
    用于生产乙苯或白云母的设备

    公开(公告)号:US20080289946A1

    公开(公告)日:2008-11-27

    申请号:US11752532

    申请日:2007-05-23

    IPC分类号: B01D3/14

    CPC分类号: B01D3/14 B01D3/141

    摘要: The apparatus includes an alkylation unit connected to a first benzene recycle conduit, a feed conduit and an alkylation effluent conduit; a transalkylation unit connected to an polyalkylbenzene recycle conduit, a second benzene recycle conduit, and a transalkylation effluent conduit. A dividing wall distillation column is in fluid communication with the transalkylation effluent conduit, the alkylation effluent conduit, a product stream, a bottoms stream conduit and first and second benzene recycle conduits. A polyalkylbenzene fractionation column is connected to the bottoms stream conduit, the polyalkylbenzene recycle conduit and a heavy component conduit.

    摘要翻译: 该装置包括连接到第一苯循环导管,进料管和烷基化流出物导管的烷基化单元; 连接到多烷基苯再循环导管,第二苯循环导管和烷基转移流出物导管的烷基转移单元。 分隔壁蒸馏塔与烷基转移流出物导管,烷基化流出物导管,产物流,塔底流导管和第一和第二苯循环导管流体连通。 多烷基苯分馏塔连接到底部料流管道,聚烷基苯再循环管道和重组分管道。

    Process for producing cumene
    6.
    发明授权
    Process for producing cumene 有权
    异丙苯生产工艺

    公开(公告)号:US07525006B2

    公开(公告)日:2009-04-28

    申请号:US11752528

    申请日:2007-05-23

    IPC分类号: C07C15/073 C07C2/64

    摘要: This cumene process involves contacting, in an alkylation zone, a first benzene recycle stream and a propylene feed stream with an alkylation catalyst to form cumene. In a transalkylation zone, a polyisopropyl benzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional cumene. The effluents are passed into a dividing wall distillation column. A cumene 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 heavy aromatics 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 cumene stream. A polyisopropyl benzene stream is removed from an intermediate point of located between the second end and the cumene stream.

    摘要翻译: 该枯烯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丙烯进料流以形成枯烯。 在烷基转移区中,将聚异丙基苯再循环物流和第二苯循环物流与烷基转移催化剂接触以形成额外的枯烯。 将废水排入分隔壁蒸馏塔。 从分隔壁分馏塔的中间点除去枯烯物流; 从第一端除去第一苯回收物流,并从第二端除去重质芳烃物流。 从位于第一端和异丙苯流之间的中间点除去第二苯循环物流。 从位于第二端和异丙苯流之间的中间点除去聚异丙基苯物流。

    Process for producing cumene
    7.
    发明授权
    Process for producing cumene 有权
    异丙苯生产工艺

    公开(公告)号:US07525005B2

    公开(公告)日:2009-04-28

    申请号:US11752520

    申请日:2007-05-23

    IPC分类号: C07C15/073 C07C2/64

    CPC分类号: C07C15/085 C07C2/66 C07C6/126

    摘要: This cumene process involves contacting, in an alkylation zone, a first benzene recycle stream and a propylene feed stream with an alkylation catalyst to form cumene. In a transalkylation zone, a polyisopropylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional cumene. The effluents are passed into a benzene distillation column. From the benzene distillation column, a first benzene recycle stream is removed as overhead; a second benzene recycle stream is removed as a side draw; and a bottoms stream comprising polyisopropylbenzene, cumene, and heavy aromatics is removed from an end. The bottoms stream is passed to a dividing wall distillation column where the polyisopropylbenzene recycle stream is removed from an intermediate point; a cumene product stream is removed from a first end, and a heavy aromatic stream is removed from a second end.

    摘要翻译: 该枯烯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丙烯进料流以形成枯烯。 在烷基转移区中,将聚异丙基苯循环物流和第二苯再循环物流与烷基转移催化剂接触以形成额外的枯烯。 将废水送入苯蒸馏塔。 从苯蒸馏塔中取出第一个苯循环物流作为塔顶馏出物; 第二个苯循环流作为侧面吸附除去; 并且从末端去除包含聚异丙基苯,枯烯和重芳烃的底部料流。 将底部物流送入分隔壁蒸馏塔,从中间点除去聚异丙苯再循环物流; 从第一端除去枯烯产物流,并从第二端除去重芳族物流。

    Process for producing cumene
    8.
    发明授权
    Process for producing cumene 有权
    异丙苯生产工艺

    公开(公告)号:US07498471B2

    公开(公告)日:2009-03-03

    申请号:US11752514

    申请日:2007-05-23

    IPC分类号: C07C15/073 C07C2/64

    CPC分类号: C07C15/085 C07C2/66 C07C6/126

    摘要: In an alkylation zone, a benzene recycle stream and a propylene feed stream are contacted with an alkylation catalyst to convert the propylene and benzene into cumene. In a transalkylation zone, a polyisopropylbenzene stream and a benzene recycle stream are contacted with a transalkylation catalyst to convert the polyisopropylbenzene and benzene into cumene. The alkylation and transalkylation zone effluents are passed into a dividing wall fractionation column.A cumene product stream is removed from an intermediate point of the dividing wall fractionation column. A benzene recycle stream is removed from a first end, and another benzene recycle stream is removed from an intermediate point of the dividing wall fractionation column. A polyisopropylbenzene stream is removed from a second end of the dividing wall fractionation column. The polyisopropylbenzene stream is passed to a polyisopropylbenzene fractionation column to separate the polyisopropylbenzene from a heavy ends stream.

    摘要翻译: 在烷基化区中,苯再循环料流和丙烯进料流与烷基化催化剂接触以将丙烯和苯转化成异丙苯。 在烷基转移区中,将聚异丙基苯料流和苯再循环料流与烷基转移催化剂接触,将聚异丙基苯和苯转化成异丙苯。 将烷基化和烷基转移区污水进入分隔壁分馏塔。 从分隔壁分馏塔的中间点除去枯烯产物流。 从第一端除去苯循环物流,从分隔壁分馏塔的中间点除去另一苯回收物流。 从分隔壁分馏塔的第二端除去聚异丙基苯料流。 将聚异丙基苯流输送到聚异丙基苯分馏塔以将聚异丙基苯与重馏分流分离。

    Process for Producing Cumene
    9.
    发明申请
    Process for Producing Cumene 有权
    生产白蚁的方法

    公开(公告)号:US20080293984A1

    公开(公告)日:2008-11-27

    申请号:US11752520

    申请日:2007-05-23

    IPC分类号: C07C2/66

    CPC分类号: C07C15/085 C07C2/66 C07C6/126

    摘要: This cumene process involves contacting, in an alkylation zone, a first benzene recycle stream and a propylene feed stream with an alkylation catalyst to form cumene. In a transalkylation zone, a polyisopropylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional cumene. The effluents are passed into a benzene distillation column. From the benzene distillation column, a first benzene recycle stream is removed as overhead; a second benzene recycle stream is removed as a side draw; and a bottoms stream comprising polyisopropylbenzene, cumene, and heavy aromatics is removed from an end. The bottoms stream is passed to a dividing wall distillation column where the polyisopropylbenzene recycle stream is removed from an intermediate point; a cumene product stream is removed from a first end, and a heavy aromatic stream is removed from a second end.

    摘要翻译: 该枯烯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丙烯进料流以形成枯烯。 在烷基转移区中,将聚异丙基苯循环物流和第二苯再循环物流与烷基转移催化剂接触以形成额外的枯烯。 将废水送入苯蒸馏塔。 从苯蒸馏塔中取出第一个苯循环物流作为塔顶馏出物; 第二个苯循环流作为侧面吸附除去; 并且从末端去除包含聚异丙基苯,枯烯和重芳烃的底部料流。 将底部物流送入分隔壁蒸馏塔,从中间点除去聚异丙苯再循环物流; 从第一端除去枯烯产物流,并从第二端除去重芳族物流。

    Process for Producing Ethylbenzene
    10.
    发明申请
    Process for Producing Ethylbenzene 有权
    生产乙苯的方法

    公开(公告)号:US20080293983A1

    公开(公告)日:2008-11-27

    申请号:US11752516

    申请日:2007-05-23

    IPC分类号: C07C2/66

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

    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 benzene distillation column. From the benzene distillation column, a first benzene recycle stream is removed as overhead; a second benzene recycle stream is removed as a side draw; and a bottoms stream comprising polyethylbenzene, ethylbenzene, and flux oil is removed from an end. The bottoms stream is passed to a dividing wall distillation column where the polyethylbenzene recycle stream is removed from an intermediate point; an ethylbenzene product stream is removed from a first end, and a heavy oil stream is removed from a second end.

    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。 将废水送入苯蒸馏塔。 从苯蒸馏塔中取出第一个苯循环物流作为塔顶馏出物; 第二个苯循环流作为侧面吸附除去; 从末端除去包含聚乙基苯,乙苯和助熔剂油的底部料流。 将塔底物流送入分隔壁蒸馏塔,其中从中间点除去多乙基苯循环物流; 从第一端去除乙苯产物流,并从第二端除去重油流。