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公开(公告)号：US11572325B2
公开(公告)日：2023-02-07
申请号：US17297408
申请日：2019-11-14
申请人： Robert Piszczek , Brian W. Heins , Paul Hamilton , Terrance C. Osby , Dion Zhang , Zhongcheng Wang , Michael L. Hergenrother , Jason A. Nichols
发明人： Robert Piszczek , Brian W. Heins , Paul Hamilton , Terrance C. Osby , Dion Zhang , Zhongcheng Wang , Michael L. Hergenrother , Jason A. Nichols
摘要： Many linear alpha olefin (LAO) syntheses form a range of LAO products when oligomerizing ethylene in the presence of a Ziegler-type catalyst. The range of products typically requires a plurality of distillation columns to separate the LAO products up to a desired carbon count, but such approaches may be energy- and capital-intensive. LAO product separation using at least one dividing wall column may lessen these burdens. Methods for separating LAOs may comprise: providing a pre-processed product stream comprising Cg+ linear alpha olefins (LAOs) to a first of a series of distillation columns, at least one member of the series of distillation columns comprising a dividing wall column; and separating an overhead stream comprising a first LAO from the dividing wall column and one or more side streams from the dividing wall column, each side stream comprising a different LAO that also differs from the first LAO.
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公开(公告)号：US20220033327A1
公开(公告)日：2022-02-03
申请号：US17297408
申请日：2019-11-14
申请人： Robert Piszczek , Brian W. Heins , Paul Hamilton , Terrance C. Osby , Dion Zhang , Zhongcheng Wang , Michael L. Hergenrother , Jason A. Nichols
发明人： Robert Piszczek , Brian W. Heins , Paul Hamilton , Terrance C. Osby , Dion Zhang , Zhongcheng Wang , Michael L. Hergenrother , Jason A. Nichols
摘要： Many linear alpha olefin (LAO) syntheses form a range of LAO products when oligomerizing ethylene in the presence of a Ziegler-type catalyst. The range of products typically requires a plurality of distillation columns to separate the LAO products up to a desired carbon count, but such approaches may be energy- and capital-intensive. LAO product separation using at least one dividing wall column may lessen these burdens. Methods for separating LAOs may comprise: providing a pre-processed product stream comprising Cg+ linear alpha olefins (LAOS) to a first of a series of distillation columns, at least one member of the series of distillation columns comprising a dividing wall column; and separating an overhead stream comprising a first LAO from the dividing wall column and one or more side streams from the dividing wall column, each side stream comprising a different LAO that also differs from the first LAO.
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公开(公告)号：US20150128543A1
公开(公告)日：2015-05-14
申请号：US14323231
申请日：2014-07-03
IPC分类号： B01D45/08
CPC分类号： B01D45/08 , B01D45/04 , B01D45/16 , B01D50/002 , F01M13/04 , F01M2013/0433
摘要： Vane type mist eliminator segments are arranged in a plurality of tiers at separate vertically spaced locations in a tower, typically of the upright, cylindrical type, with the eliminator at each tier covering only a portion of the cross section of the tower. The eliminator segment(s) in each tier are laterally displaced in the tower from the adjacent vertically spaced eliminator segments to form a staggered configuration for the segments. Each mist eliminator preferably extends over 50-70% of the cross-sectional area of the tower to leave an open flow passage in the tier; the staggering of the segments and the associated flow passages defines an upward tortuous or zig-zag open flow path for vapors ascending the tower through the open flow passages when the eliminator segment(s) become fouled in use.
摘要翻译： 叶片式除雾器段在塔中的分开的垂直间隔的位置处布置成多个层，通常为直立的圆柱形，每层的消除器仅覆盖塔的横截面的一部分。 每个层中的消除器段在塔中从相邻的垂直间隔的消除器段横向移位，以形成用于段的交错构造。 每个除雾器优选地延伸超过塔的横截面面积的50-70％以在层中留下开放的流动通道; 段和相关联的流动通道的交错限定了当消除器段在使用中被弄脏时，向上弯曲或向上弯曲的开口流动路径，用于通过开放流动通道升高塔的蒸气。
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