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发明公开
CN86107757A 二氧化硫脱除工艺 无效 - 撤回

二氧化硫脱除工艺
摘要：
一种在硫代硫酸盐和连多硫酸盐缓冲水溶液中通过吸收从气流中去除二氧化硫，接着用硫化氢再生吸收后的浓缩溶液而形成硫磺的工艺。其中从再生步骤回收的过量硫化氢被通入到吸收步骤，以减少浓缩溶液中的亚硫酸氢盐浓度。
摘要（英）：

A process for removing sulfur dioxide from a gas stream by absorption in a buffered, aqueous thiosulfate and polythionate solution followed by regeneration of the enriched solution with hydrogen sulfide to form sulfur wherein excess hydrogen sulfide recovered from the regeneration step is introduced to the absorption step to reduce bisulfite concentration in the enriched solution.

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