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    • 2. 发明授权
    • Desulfurizing a gas stream
    • 使气流脱硫
    • US5458861A
    • 1995-10-17
    • US184708
    • 1994-01-21
    • John S. BuchananDavid L. JohnsonJoseph F. Sodomin, IIIGerald J. Teitman
    • John S. BuchananDavid L. JohnsonJoseph F. Sodomin, IIIGerald J. Teitman
    • B01D53/04B01D53/48B01D53/50B01D53/52B01D53/77B01D53/86C01B17/04C10L3/10B01J8/00
    • B01D53/485B01D53/04B01D53/508B01D53/52B01D53/523B01D53/8609B01D53/8637C01B17/0408C01B17/0456C01B17/0473B01D2253/104B01D2257/302B01D2259/403B01D2259/41
    • A multi-bed process of removing sulfur oxides and/or other combustible sulfur-containing compounds from a gas stream including combusting the other combustible sulfur-compounds when present in the gas stream with air or oxygen to convert such sulfur-containing compounds to sulfur oxide and form a sulfur oxide enriched gas stream. The sulfur oxide enriched gas stream is contacted with first and second serially connected solid adsorbent beds for adsorbing the sulfur oxides in the form of inorganic sulfates and/or sulfur oxides. A third adsorbent bed is contacted with a reducing gas stream to regenerate the bed by reducing the retained inorganic sulfates and/or sulfur oxides to hydrogen sulfide and/or sulfur dioxide, to thereby form a hydrogen sulfide and/or sulfur dioxide bearing stream. The feeds to each of the beds are realigned to place the second and third beds in series with the sulfur oxide and/or sulfur dioxide enriched stream being fed to the second bed and to place the first bed in a regenerative mode. Thereafter, the foregoing steps are repeated whereby each of the three beds are sequentially placed in an initial bed mode in the series, a regenerative mode, and a second bed mode in the series.
    • 一种从气流中除去硫氧化物和/或其它可燃含硫化合物的多床方法,包括当气流与空气或氧气存在时燃烧其它可燃硫化合物,以将这种含硫化合物转化成硫氧化物 并形成富含硫氧化物的气流。 富含硫氧化物的气流与第一和第二串联连接的固体吸附剂床接触,以吸附无机硫酸盐和/或硫氧化物形式的硫氧化物。 通过将保留的无机硫酸盐和/或硫氧化物还原成硫化氢和/或二氧化硫,第三吸附剂床与还原气流接触以再生床,从而形成含硫化氢和/或二氧化硫的物流。 将每个床的进料重新对准以将第二和第三床与加入到第二床中的硫氧化物和/或二氧化硫浓缩物流串联并将第一床置于再生模式。 此后,重复上述步骤,其中三个床中的每一个顺序地以串联的初始床模式,串联的再生模式和第二床模式放置。