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    Low energy regenerable SO2 scrubbing process
    2.
    发明申请
    Low energy regenerable SO2 scrubbing process 有权
    低能可再生SO2洗涤过程

    公开(公告)号：US20050034600A1

    公开(公告)日：2005-02-17

    申请号：US10639678

    申请日：2003-08-13

    申请人： Patrick Ravary ,  John Sarlis ,  Paul Parisi ,  Leo Hakka

    发明人： Patrick Ravary ,  John Sarlis ,  Paul Parisi ,  Leo Hakka

    IPC分类号： B01D53/14 ,  B01D53/50

    CPC分类号： B01D53/1493 ,  B01D53/1481 ,  Y02A50/2349

    摘要： Sulphur dioxide is removed from gas streams by contacting the gas stream with an absorbing medium containing an amine capable of forming an amine salt, heat stable salt and sulfite. The level of heat stable salt is selected such that during the regeneration process of the sulphur dioxide rich amine, the pH of the absorbing medium is at a selected level or below when the level of sulfite in the absorbing medium has been reduced to a specified value. The amine that absorbs the sulphur dioxide has a pKa less than that of sulfite. If the absorbent includes a diamine, then the spent absorbing medium is regenerated under conditions such that at least one amine group remains in salt form.

    摘要翻译： 通过使气流与含有能够形成胺盐，热稳定盐和亚硫酸盐的胺的吸收介质接触，从气流中除去二氧化硫。 选择热稳定盐的水平，使得在富二氧化亚胺的再生过程中，当吸收介质中的亚硫酸盐水平已经降低到指定值时，吸收介质的pH处于选定的水平或更低 。 吸收二氧化硫的胺的pKa小于亚硫酸盐。 如果吸收剂包含二胺，则在使得至少一个胺基保持为盐形式的条件下再使用废吸收介质。

    Regeneration of ion exchangers that are used for salt removal from acid gas capture plants
    5.
    发明申请
    Regeneration of ion exchangers that are used for salt removal from acid gas capture plants 有权
    用于从酸性气体捕获设备中去除盐的离子交换剂的再生

    公开(公告)号：US20070213415A1

    公开(公告)日：2007-09-13

    申请号：US11371924

    申请日：2006-03-10

    申请人： John Sarlis

    发明人： John Sarlis

    IPC分类号： C08J5/20

    CPC分类号： B01D53/1456 ,  B01D53/1425 ,  B01J49/60

    摘要： A process for the removal of an amine captureable gas from a feed gas stream using an amine solvent, the process comprises (a) contacting the feed gas stream with a lean amine solvent to form a rich amine solvent, wherein heat stable salts are present in the rich amine solvent; (b) stripping amine captureable gas from the rich amine solvent to form the lean amine solvent and an overhead reflux stream; (c) periodically contacting at least a portion of one or both of the lean amine solvent and the rich amine solvent with an anion exchange resin to form a first heat stable salt lean amine solvent; (d) periodically regenerating the anion exchange resin, wherein during the regeneration of the anion exchange resin, at least a portion of the reflux stream is used to wash the amine solvent from the anion exchange resin to produce a second heat stable salt lean amine solvent; and, (e) recycling at least a portion of the first and the second heat stable salt lean amine solvent for use in capturing the amine captureable gas from the feed gas.

    摘要翻译： 一种使用胺溶剂从进料气流中除去胺可捕获气体的方法，该方法包括（a）使进料气流与贫胺溶剂接触以形成富胺溶剂，其中热稳定盐存在于 富胺溶剂; （b）从富胺溶剂中汽提胺可捕获气体以形成贫胺溶剂和塔顶回流; （c）使阴离子交换树脂周期性地接触贫胺溶剂和富胺溶剂中的一种或两种的至少一部分，以形成第一热稳定性贫盐胺溶剂; （d）周期性地再生所述阴离子交换树脂，其中在所述阴离子交换树脂的再生期间，至少一部分所述回流物流用于从所述阴离子交换树脂洗涤所述胺溶剂，以产生第二热稳定盐贫胺溶剂 ; 和（e）回收第一和第二热稳定性贫盐胺溶剂的至少一部分，以用于从进料气体捕获可胺捕集气体。