VACASULF Vacuum Desulfurization


VACASULF Vacuum Desulfurization : A process for removing hydrogen sulfide from coke-oven gas by scrubbing with aqueous potassium carbonate: K2CO3 + H2S + KHS + KHCO3. Hydrogen sulfide is recovered from the scrubbing solution under vacuum, hence the name. It is then either oxidized with air and the sulfur dioxide used for making sulfuric acid, or converted to elemental sulfur by the Claus process. The process is suitable only for gases not containing ammonia. (Check source for accuracy of chemical formula)
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