Removing sulfur from off-gases is vital for many industrial operations. Regulations are tightening, and operators are forced to optimize the efficiency of their downstream treatment units. Topsoe’s Wet gas Sulfuric Acid (WSA) technology converts sulfur compounds in off-gases to valuable sulfuric acid with best-in-class energy economy.
WSA manages:
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Fluctuating feed streams
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Low sulfur concentrations
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Waste stream recovery
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Multiple feed streams
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Complex sulfur components, including CS2, H2S, SO2 – and more
In this method, concentrated sulfuric acid is made by condensing it from a wet process gas. Since the gas doesn't need to be dried before being treated in a WSA plant, it prevents wastewater production and sulfur loss.
Off-gas treatment can be complex, but with our solutions and services, you can balance the economic, environmental, and operational requirements of dealing with sulfurous off-gases.