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    Recovery of nitrogen and light hydrocarbons from polyalkene purge gas
    1.
    发明授权
    Recovery of nitrogen and light hydrocarbons from polyalkene purge gas 有权
    从聚烯烃吹扫气中回收氮和轻烃

    公开(公告)号：US06576043B2

    公开(公告)日：2003-06-10

    申请号：US09976398

    申请日：2001-10-12

    申请人： Daniel Patrick Zwilling ,  Timothy Christopher Golden ,  Edward Landis Weist, Jr. ,  Keith Alan Ludwig

    发明人： Daniel Patrick Zwilling ,  Timothy Christopher Golden ,  Edward Landis Weist, Jr. ,  Keith Alan Ludwig

    IPC分类号： B01D53047

    CPC分类号： B01D53/047 ,  B01D53/0446 ,  B01D2256/10 ,  B01D2256/24 ,  B01D2259/40052 ,  Y02P20/582

    摘要： A method for the separation of a gas mixture comprises (a) obtaining a feed gas mixture comprising nitrogen and at least one hydrocarbon having two to six carbon atoms; (b) introducing the feed gas mixture at a temperature of about 60° F. to about 105° F. into an adsorbent bed containing adsorbent material which selectively adsorbs the hydrocarbon, and withdrawing from the adsorbent bed an effluent gas enriched in nitrogen; (c) discontinuing the flow of the feed gas mixture into the adsorbent bed and depressurizing the adsorbent bed by withdrawing depressurization gas therefrom; (d) purging the adsorbent bed by introducing a purge gas into the bed and withdrawing therefrom an effluent gas comprising the hydrocarbon, wherein the purge gas contains nitrogen at a concentration higher than that of the nitrogen in the feed gas mixture; (e) pressurizing the adsorbent bed by introducing pressurization gas into the bed; and (f) repeating (b) through (e) in a cyclic manner.

    摘要翻译： 分离气体混合物的方法包括（a）获得包含氮和至少一种具有2至6个碳原子的烃的进料气体混合物; （b）将进料气体混合物在约60°F至约105°F的温度下引入含有选择性吸附烃的吸附材料的吸附剂床中，并从吸附剂床中排出富含氮气的流出气体; （c）停止进料气体混合物流入吸附床，并通过从其中抽出减压气体来减压吸附剂床; （d）通过将净化气体引入床中并从其中排出包含烃的流出气体来净化吸附剂床，其中净化气体含有浓度高于进料气体混合物中氮的浓度的氮气; （e）通过将加压气体引入床中来加压吸附床; 和（f）以循环方式重复（b）至（e）。