Abstract
This paper describes a flue gas absorption/stripping system which produces concentrated SO/sup 2/ by regenerating the scrubbing liquid thermally. The streams leaving the scrubbing system are either pure enough to be emitted to the surroundings without causing any harm or may even be processed to give a salable product. Three possibilities suggest themselves for treating the concentrated stream produced: reduction to elemental sulfur by contacting it with H/sub 2/S (Claus Process); oxidation and subsequent hydration to give dilute sulfuric acid; drying and liquefaction. To achieve the absorption/stripping goal a simulation program, which uses a tray to tray algorithm, is used. The results of this simulation are evaluated and compared in terms of utility costs. 8 references, 4 figures, 5 tables.
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