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    • 6. 发明申请
    • PROCESS FOR THE REMOVAL OF SULPHUR COMPOUNDS FROM GASES
    • 从气体中去除硫化合物的方法
    • WO1992010270A1
    • 1992-06-25
    • PCT/NL1991000250
    • 1991-12-04
    • PAQUES B.V.BUISMAN, Cees, Jan, Nico
    • PAQUES B.V.
    • B01D53/14
    • C12M47/18B01D53/48B01D53/507B01D53/52B01D53/84C01B17/05C02F3/345C12M21/04Y02A50/2358Y02C10/06Y02E50/343Y10S423/17
    • A process for the removal of sulphur compounds from a gaseous effluent, comprising the steps of: a) contacting the gaseous effluent with an aqueous solution wherein sulphur compounds are dissolved: b) adjusting the concentration of buffering compounds such as carbonate and/or bicarbonate and/or phosphate in the aqueous solution to a value between 20 and 2000 meq/l; c) subjecting the aqueous solution containing sulphide to sulphide-oxidising bacteria in the presence of oxygen in a reactor wherein sulphide is oxidised to elemental sulphur; d) separating elemental sulphur from the aqueous solution; and e) recycling the aqueous solution to step a). This process is suitable for removing H2S from biogas, ventilation air etc. It can be used for removing SO2 from combustion gases by introducing the additional step, after step a) and before step c), of subjecting the aqueous solution containing the sulphur compounds to a reduction of the sulphur compounds to sulphide. H2S and SO2 removal is further enhanced by a residual sulphur content in the washing liquid of 1-50 g/l.
    • 一种从气态流出物中除去硫化合物的方法,包括以下步骤:a)使气体流出物与其中硫化合物溶解的水溶液接触:b)调节缓冲化合物如碳酸盐和/或碳酸氢盐的浓度, /或磷酸盐在水溶液中的值为20至2000meq / l; c)使含硫化物的水溶液在氧气存在下在硫酸盐氧化成元素硫的反应器中进行硫化物氧化细菌; d)从水溶液中分离元素硫; 和e)将水溶液再循环到步骤a)。 该方法适用于从沼气,通风空气等中除去H2S。可以在步骤a)和步骤c)之后引入附加步骤,将含硫化合物的水溶液 将硫化合物还原成硫化物。 H2S和SO2的去除通过洗涤液中残留的硫含量进一步提高了1-50g / l。