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    SEPARATION OF OLEFINS FROM OLEFINS/PARAFFINS MIXED GAS
    4.
    发明公开
    SEPARATION OF OLEFINS FROM OLEFINS/PARAFFINS MIXED GAS 有权
    烯烃从混合气体分离与烯烃/构烷烃

    公开(公告)号：EP2134667A1

    公开(公告)日：2009-12-23

    申请号：EP08741021.3

    申请日：2008-03-28

    申请人： Korea Institute of Energy Research ,  SK Energy Co., Ltd.

    发明人： KIM, Jong-Nam ,  PARK, Jong-Ho ,  LEE, Seong-Jun ,  KO, Min-Su ,  BEUM, Hee Tae ,  PARK, Jongkee ,  KO, Chang Hyun ,  HAN, Sang Sup ,  CHO, Soon-Haeng

    IPC分类号： C07C7/12

    CPC分类号： B01D53/047 ,  B01D2256/24 ,  B01D2257/7022 ,  B01D2259/40054 ,  B01D2259/4006 ,  B01D2259/40062 ,  B01D2259/40067 ,  B01D2259/403 ,  C07C7/13 ,  C07C11/08

    摘要： The present invention relates to a method and an apparatus for the separation of C4 olefins (butene-1, trans-2-butene, cis-2-butene, etc.) and C4 paraffins (normal butane, isobutane, etc.) from a C4 hydrocarbon mixed gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. The method of the present invention produces C4 olefins with high purity by introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbent selectively adsorbing olefins to adsorb C4 olefins and to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins adsorbed on the adsorption tower with a desorbent (C5 hydrocarbon, C6 hydrocarbon, etc.), and then separating the C4 olefin and the desorbent by a distillation process. The apparatus of the present invention is composed of several adsorption towers loaded with an adsorbent which selectively adsorb olefins and two distillation towers for the separation of the mixture gases of olefins/desorbents and paraffins/desorbents respectively, The basic operating process of the adsorption tower comprises a adsorption step of selectively adsorbing C4 olefin from the feeding mixture, a C4 olefin rinse step of removing a small amount of C4 paraffins adsorbed together with C4 olefins, and a desorption step of desorbing C4 olefins by using a desorbent, and further comprises a pressure equalization step, a cocurrent depressurization step, and a accumulation pressure step in order to increase the yield and concentration of olefins depending on the operation pressure of the adsorption tower. The desorbent discharged from the process together with olefins or paraffins is separated in the distillation tower and then recycled.

    DISPLACEMENT DESORPTION PROCESS FOR LIGHT OLEFIN SEPARATION
    10.
    发明公开
    DISPLACEMENT DESORPTION PROCESS FOR LIGHT OLEFIN SEPARATION 有权
    轻质烯烃分离的位移解吸工艺

    公开(公告)号：EP2609061A2

    公开(公告)日：2013-07-03

    申请号：EP11820213.4

    申请日：2011-08-26

    申请人： Korea Institute of Energy Research ,  SK Innovation Co., Ltd.

    发明人： KIM, Jong Nam ,  PARK, Jong Ho ,  BEUM, Hee Tae ,  LEE, Seong Jun ,  LEE, Jang Jae ,  KIM, Dong Wook ,  KO, Chang Hyun ,  HAN, Sang Sup ,  CHO, Soon Haeng

    IPC分类号： C07C7/13 ,  C07C11/02 ,  C07C7/04 ,  B01D53/02

    CPC分类号： C07C7/005 ,  B01D53/04 ,  B01D2253/108 ,  B01D2256/24 ,  B01D2257/7022 ,  B01D2259/40086 ,  B01D2259/404 ,  C07C7/04 ,  C07C7/13 ,  Y02P30/464 ,  C07C11/02 ,  C07C11/04 ,  C07C11/06

    摘要： A process and apparatus for separating an olefin from mixed gases containing light olefins is provided. The process includes adsorbing the olefin of an olefin-containing mixed gas in an adsorption column packed with an adsorbent selectively adsorbing the olefin; discharging gases other than the olefin through the outlet of the adsorption column; desorbing the adsorbed olefin by displacement using a desorbent, and separating the olefin from the desorbent, thereby producing a high-purity olefin. The apparatus includes adsorption columns packed with an adsorbent selectively adsorbing an olefin, and at least two distillation columns for separating an olefin/desorbent mixture and an olefin poor stream/desorbent into their components. If the olefin concentration of the off-gas from an olefin rinse step is higher than that of a raw material gas, recovering the olefin from the off-gas is carried out before or after the adsorption step.

    摘要翻译： 提供了一种从含有轻质烯烃的混合气体中分离烯烃的方法和设备。 该方法包括在填充有选择性吸附烯烃的吸附剂的吸附塔中吸附含烯烃的混合气体的烯烃; 通过吸附塔的出口排出烯烃以外的气体; 通过使用解吸剂置换解吸吸附的烯烃，并从解吸剂中分离烯烃，由此生产高纯度烯烃。 该设备包括填充有选择性吸附烯烃的吸附剂的吸附塔和至少两个蒸馏塔，用于将烯烃/解吸剂混合物和贫烯烃流/解吸剂分离成它们的组分。 如果来自烯烃漂洗步骤的废气的烯烃浓度高于原料气的烯烃浓度，则在吸附步骤之前或之后进行从废气中回收烯烃。