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    Pressure swing adsorption process
    1.
    发明授权
    Pressure swing adsorption process 有权
    变压吸附过程

    公开(公告)号：US08778051B2

    公开(公告)日：2014-07-15

    申请号：US13421094

    申请日：2012-03-15

    申请人： Edward Landis Weist, Jr. ,  Jianguo Xu

    发明人： Edward Landis Weist, Jr. ,  Jianguo Xu

    IPC分类号： B01D53/047

    CPC分类号： B01D53/047 ,  B01D2256/16 ,  B01D2257/102 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/7025 ,  B01D2259/40015 ,  B01D2259/40032 ,  B01D2259/40052 ,  B01D2259/40067 ,  B01D2259/404 ,  B01D2259/406 ,  Y02C10/08 ,  Y02C20/20

    摘要： A process for separating a primary gas component from a feed gas mixture comprising the primary gas component and secondary gas components in four or more adsorption beds. The process comprises subjecting each of the four or more adsorption beds to a repetitive cycle. The repetitive cycle comprises, in sequence, a feed step, a pressure decreasing equalization step, a provide purge step, a blowdown step, a purge step, a pressure increasing equalization step, and a repressurization step. During the pressure decreasing equalization step, rinse gas is co-currently introduced simultaneous with the withdrawal of pressure equalization gas. Rinse gas is formed by compressing blowdown gas and/or purge gas effluent from the adsorption bed undergoing the purge step. The process is particularly suited for separating H2 from a reformate stream.

    摘要翻译： 一种从四种或更多种吸附床中将主要气体组分和二级气体组分构成的原料气体混合物分离出来的方法。 该方法包括使四个或更多个吸附床中的每一个重复循环。 重复循环依次包括进料步骤，减压均衡步骤，提供吹扫步骤，排污步骤，吹扫步骤，增压均衡步骤和再加压步骤。 在减压平衡步骤期间，冲洗气体与压力平衡气体的抽出同时引入。 通过从经历吹扫步骤的吸附床压缩排污气体和/或净化气体流出物形成冲洗气体。 该方法特别适用于从重整产物流中分离H 2。

    Pressure swing adsorption cycle for ozone production
    7.
    发明授权
    Pressure swing adsorption cycle for ozone production 有权
    用于臭氧生产的变压吸附循环

    公开(公告)号：US08029603B2

    公开(公告)日：2011-10-04

    申请号：US12358414

    申请日：2009-01-23

    申请人： Edward Landis Weist, Jr.

    发明人： Edward Landis Weist, Jr.

    IPC分类号： B01D53/047

    CPC分类号： B01D53/047 ,  B01D53/04 ,  B01D2256/14 ,  B01D2257/104 ,  B01D2259/40062 ,  B01D2259/403 ,  C01B13/10

    摘要： A pressure swing adsorption cycle designed to reduce the variations in ozone concentration, and produce a higher average ozone concentration, in a product gas stream throughout the cycle. The cycle includes a relatively long air sweep stage and provides for the overlapping of the air sweep stage in two adsorber vessels. Effluent from an adsorber vessel in a feed rinse stage is routed to another adsorber vessel that is in an air sweep stage.

    摘要翻译： 变压吸附循环设计用于在整个循环中减少产物气流中臭氧浓度的变化，并产生更高的平均臭氧浓度。 该循环包括相对较长的空气吹扫阶段并且提供了两个吸附容器中的空气吹扫阶段的重叠。 在进料冲洗阶段中来自吸附剂容器的流出物被送至处于空气吹扫阶段的另一吸附容器。

    Recovery of nitrogen and light hydrocarbons from polyalkene purge gas
    10.
    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）。