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    • 2. 发明申请
    • SEPARATION OF OLEFINS FROM OLEFINS/PARAFFINS MIXED GAS
    • 来自烯烃/分散体混合气体的烯烃的分离
    • US20130213793A1
    • 2013-08-22
    • US13855957
    • 2013-04-03
    • KOREA INSTITUTE OF ENERGY RESEARCHSK ENERGY CO., LTD.
    • Jong-Nam KIMJong-Ho PARKSeong-Jun LEEMin-Su KOHee Tae BEUMJongkee PARKChang Hyun KOSang Sup HANSoon-Haeng CHO
    • C07C7/12
    • C07C7/12C07C11/08
    • A method and 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. is provided. The apparatus includes 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 an 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 pressure equalization step, concurrent depressurization step, and accumulation pressure step to increase the yield and concentration of olefins depending on the operation pressure of the adsorption tower.
    • 用于从包括丁烯-1的C4烃混合气体中分离C4烯烃(丁烯-1,反式-2-丁烯,顺式-2-丁烯等)和C4链烷烃(正丁烷,异丁烷等)的方法和装置, 1,反式-2-丁烯,顺式-2-丁烯,正丁烷,异丁烷等。 该装置包括装有吸附剂的几个吸附塔,该吸附剂选择性地吸附烯烃和两个用于分离烯烃/脱附剂和石蜡/脱附剂的混合气体的蒸馏塔。 吸附塔的基本操作过程包括从进料混合物中选择性吸附C4烯烃的吸附步骤,除去与C4烯烃一起吸附的少量C4链烷烃的C4烯烃漂洗步骤,以及通过以下步骤解吸C4烯烃的解吸步骤 使用解吸剂,还包括压力平衡步骤,并行减压步骤和累积压力步骤,以根据吸附塔的操作压力提高烯烃的产率和浓度。