AROMATIC ALKYLATION PROCESS WITH REDUCED BYPRODUCT FORMATION
    3.
    发明申请
    AROMATIC ALKYLATION PROCESS WITH REDUCED BYPRODUCT FORMATION 有权
    具有减少产物形成的芳香烷基化方法

    公开(公告)号:US20100292519A1

    公开(公告)日:2010-11-18

    申请号:US12467622

    申请日:2009-05-18

    IPC分类号: C07C2/00

    摘要: Byproduct formation in aromatic alkylation processes is reduced when different polyalkylated aromatic compounds are first fractionated into separate streams enriched in these respective polyalkylated aromatic compounds, and the separate streams are sent to different transalkylation reaction zones, which may or may not be in the same reactor. The different transalkylation reaction zones allow for greater control of the transalkylation of the respective polyalkylated aromatic compounds, such as diisopropylbenzene (DIPB) and triisopropylbenzene (TIPB) that accompany the alkylation of benzene with propylene in a process for cumene production.

    摘要翻译: 当将不同的多烷基化芳族化合物首先分馏成富含这些各自的多烷基化芳族化合物的分离的流中时,芳族烷基化方法中的副产物形成降低,并且将分离的物流送入不同的烷基转移反应区,其可以是或不在同一个反应器中。 不同的烷基转移反应区可以更好地控制各种多烷基化芳族化合物如二异丙基苯(DIPB)和三异丙基苯(TIPB)在烷基化反应过程中伴随苯与丙烯烷基化反应的烷基转移。

    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。

    Aromatic alkylation process with reduced byproduct formation
    7.
    发明授权
    Aromatic alkylation process with reduced byproduct formation 有权
    具有减少副产物形成的芳香族烷基化方法

    公开(公告)号:US09150469B2

    公开(公告)日:2015-10-06

    申请号:US12467622

    申请日:2009-05-18

    IPC分类号: C07C2/00 C07C6/12 C07C7/148

    摘要: Byproduct formation in aromatic alkylation processes is reduced when different polyalkylated aromatic compounds are first fractionated into separate streams enriched in these respective polyalkylated aromatic compounds, and the separate streams are sent to different transalkylation reaction zones, which may or may not be in the same reactor. The different transalkylation reaction zones allow for greater control of the transalkylation of the respective polyalkylated aromatic compounds, such as diisopropylbenzene (DIPB) and triisopropylbenzene (TIPB) that accompany the alkylation of benzene with propylene in a process for cumene production.

    摘要翻译: 当将不同的多烷基化芳族化合物首先分馏成富含这些各自的多烷基化芳族化合物的分离的流中时,芳族烷基化方法中的副产物形成降低,并且将分离的物流送入不同的烷基转移反应区,其可以是或不在同一个反应器中。 不同的烷基转移反应区可以更好地控制各种多烷基化芳族化合物如二异丙基苯(DIPB)和三异丙基苯(TIPB)在烷基化反应过程中伴随苯与丙烯烷基化反应的烷基转移。

    Apparatus for producing ethylbenzene or cumene
    9.
    发明授权
    Apparatus for producing ethylbenzene or cumene 有权
    用于生产乙苯或异丙基苯的装置

    公开(公告)号:US07713386B2

    公开(公告)日:2010-05-11

    申请号:US11752532

    申请日:2007-05-23

    IPC分类号: B01D3/04 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 ethylbenzene
    10.
    发明授权
    Process for producing ethylbenzene 有权
    生产乙苯的方法

    公开(公告)号:US07525004B2

    公开(公告)日:2009-04-28

    申请号:US11752516

    申请日:2007-05-23

    IPC分类号: C07C15/073 C07C2/64

    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。