Patent ID: 6872368

Claim:
A device for processing a gaseous effluent containing at least hydrogen sulfide (H 2 S) and sulfur dioxide (SO 2 ), wherein an organic solvent and at least one catalyst are used, said device comprising: at least one contactor reactor, at least one decantation zone for separating liquid sulfur from the organic solvent, several lines for delivery of at least a gas to be processed, of a fluid comprising at least solvent and catalyst, several lines for extraction of at least a cleaned gas and of a fluid F containing at least solvent, catalyst, sulfur and by-products resulting from degradation of the catalyst, and at least a processing zone for processing said fluid F comprising at least solvent, catalyst, sulfur and by-products, said processing zone comprising heating means for heating the fluid F to favour crystallization of the by-products and separation means suited for separating the by-products from the rest of said fluid F comprising at least solvent, catalyst and sulfur so as to produce at least a fluid F 1 containing mainly solvent, catalyst and sulfur and nearly free of by-products and a fluid F 2 comprising most of the by-products.