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公开(公告)号:EP0555714B1
公开(公告)日:1998-06-17
申请号:EP93101494.8
申请日:1993-02-01
申请人: BAYER AG
CPC分类号: B01D3/4283 , Y10S203/19
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12.
公开(公告)号:EP2560737A1
公开(公告)日:2013-02-27
申请号:EP11723242.1
申请日:2011-04-18
CPC分类号: B01D3/143 , B01D3/007 , B01D3/322 , B01D3/42 , B01D3/4283 , B01D3/4288 , B01D3/4294 , C07C7/04 , Y02P20/124 , Y02P20/57 , C07C15/08
摘要: The invention relates to a process for separating a multi-component feed mixture in a distillation system comprising a first distillation column having a first fired reboiler, and at least a second distillation column having a second heat-exchange reboiler, comprising the steps of a) introducing the feed mixture to the first column, and separating into at least a first top and a first bottom product; b) taking part of the first bottom product for providing heat to the second reboiler as a utility stream; and c) feeding part of said utility stream after heat-exchange as main feed to the second column for further separation. This process allows significant energy savings, by reduction of the amount of external heat required for the fired reboiler and omission of a conventionally used heat-exhanger. The invention also relates to such distillation system suitable for separating a multi-component mixture with the process of the invention.
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13.
公开(公告)号:EP2167211A2
公开(公告)日:2010-03-31
申请号:EP08775104.6
申请日:2008-07-15
发明人: MIGNON, Denis
IPC分类号: B01D3/42
CPC分类号: B01D3/4288 , B01D3/425 , B01D3/4283 , C08F210/16 , C08F210/14
摘要: The present invention relates to a process for optimizing the separation by distillation of a hydrocarbon-containing feed stream comprising olefin monomer, co-monomer and hydrocarbon diluent. A preferred component stream separated comprises ethylene, 1-hexene and isobutane. A first distillation column (2) realizes a rough cut between a mixture of isobutane, hexene and the heavies (5). The heavy bottom product is treated in a second distillation column (4) and separated into isobutane vapor (6), a purified liquid hexene stream (7) and the heavy components (8). The remaining monomer, isobutane, which exits from the top (9) of the first distillation column (2), is sent to a third distillation column (3) to be sepatated into isobutane as liquid bottom (10), light components, ethylene and residual isobutane as a vapor stream (12) and remaining isobutane exits as a liquid side stream (11). The distillation system comprises controller means such as ratio controller (not shown), for adapting the ratio of the bottom stream flow removed from the third distillation zone to the overhead stream flow introduced in the third distillation zone.
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14.
公开(公告)号:EP2016985A1
公开(公告)日:2009-01-21
申请号:EP07112521.5
申请日:2007-07-16
发明人: Mignon, Denis
IPC分类号: B01D3/42
CPC分类号: B01D3/4288 , B01D3/425 , B01D3/4283 , C08F210/16 , C08F210/14
摘要: The present invention relates to a process for optimizing the separation by distillation of a hydrocarbon-containing feed stream comprising olefin monomer, co-monomer and hydrocarbon diluent. A preferred component stream separated comprises ethylene, 1-hexene and isobutane.
A first distillation column (2) realizes a rough cut between a mixture of isobutane, hexene and the heavies (5). The heavy bottom product is treated in a second distillation column (4) and separated into isobutane vapor (6), a purified liquid hexene stream (7) and the heavy components (8). The remaining monomer, isobutane, which exits from the top (9) of the first distillation column (2), is sent to a third distillation column (3) to be sepatated into isobutane as liquid bottom (10), light components, ethylene and residual isobutane as a vapor stream (12) and remaining isobutane exits as a liquid side stream (11).
The distillation system comprises controller means such as ratio controller (not shown), for adapting the ratio of the bottom stream flow removed from the third distillation zone to the overhead stream flow introduced in the third distillation zone.摘要翻译: 本发明涉及通过蒸馏来优化包含烯烃单体,共聚单体和烃稀释剂的含烃进料流的分离方法。 分离的优选组分流包括乙烯,1-己烯和异丁烷。 第一蒸馏塔(2)实现异丁烷,己烯和重质混合物之间的粗切割(5)。 将重的底部产物在第二蒸馏塔(4)中处理并分离成异丁烷蒸气(6),纯化的液体己烯流(7)和重组分(8)。 将从第一蒸馏塔(2)的顶部(9)排出的剩余单体异丁烷送入第三蒸馏塔(3),以分离成异丁烷作为液体底部(10),轻组分,乙烯和 剩余的异丁烷作为蒸汽流(12)和剩余的异丁烷作为液体流(11)离开。 蒸馏系统包括诸如比例控制器(未示出)的控制器装置,用于使从第三蒸馏区移除的塔底物流的比例与引入第三蒸馏区的塔顶馏出物流的比例相适应。
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公开(公告)号:EP0555714A3
公开(公告)日:1995-01-11
申请号:EP93101494.8
申请日:1993-02-01
申请人: BAYER AG
CPC分类号: B01D3/4283 , Y10S203/19
摘要: Die vorliegende Erfindung betrifft ein Vefahren zur Regelung von Konzentrationen in verfahrenstechnischen Operationen - bevorzugt der thermischen Trenntechnik - unter Verwendung einer nichtlinearen, druckkompensierten Temperatur als Regelsignal. Das Verfahren ist in einem großen Arbeitsbereich flexibel einsetzbar.
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16.
公开(公告)号:EP0559043A1
公开(公告)日:1993-09-08
申请号:EP93102757.7
申请日:1993-02-22
申请人: BAYER AG
发明人: Rhiel, Franz Ferdinand, Dr. , Steude, Heinrich, Dipl.-Ing. , Weymans, Günther, Dr. , Elgeti, Klaus, Prof. Dr.
CPC分类号: F28F27/00 , B01D3/4283 , G05D23/19 , Y10T137/7759 , Y10T137/7761
摘要: Es wird ein Verfahren zur Regelung eines Wärmeübertragers (3) beschrieben, das dadurch gekennzeichnet ist, daß der Enthalpiestrom in den Wärmeübertrager (3) als Stellgröße dient. Die robuste und vielseitig einsetzbare Regelung ist insbesondere zum Einsatz bei endothermen Reaktionen und bei der Destillation geeignet.
摘要翻译: 给出了热交换器(3)控制方法的描述,其特征在于热交换器(3)中的焓通量用作操纵变量。 可以以通用方式使用的坚固的对照特别适用于吸热反应和蒸馏。
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