Method for inter-bed cooling in wet gas sulfuric acid plants
AssigneeHaldor TopsøE A/S
InventorsMads Lykke, Martin Møllerhøj
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Abstract
In a method for cooling of process gas between catalytic layers or beds in a sulfuric acid plant, in which sulfuric acid is produced from feed gases containing sulfurous components like SO2, H2S, CS2 and COS or liquid feeds like molten sulfur or spent sulfuric acid, one or more boilers, especially water tube boilers, are used instead of conventional steam superheaters to cool the process gas between the catalytic beds in the SO2 converter of the plant. Thereby a less complicated and more cost efficient heat exchanger layout is obtained.
Claims11
A method for cooling of process gas between catalytic beds in a wet gas sulfuric acid plant, in which sulfuric acid is produced by condensation of H2SO4 from a feed stream, wherein the feed stream comprises at least one of a feed gas containing sulfurous components and a liquid feed containing sulfurous components,
- wherein at least one boiler is used to cool the process gas between the catalytic beds in a SO2 converter of the plant.
Dependencies are inferred from the claim text.