PROCEDURE AND DEVICE OF TREATMENT OF A GAS CONTAINING SULFURED HYDROGEN AND SULFUR ANHYDRIDE, THAT INCLUDES A STAGE OF ELIMINATION OF THE SULFUR BY COOLING OF THE GASEOUS EFFLUENT.

摘要

THE INVENTION CONSISTS OF A PROCEDURE AND A GAS TREATMENT DEVICE CONTAINING SULFURED HYDROGEN AND SULFUROUS ANHYDRIDE, IN WHICH A REACTOR-CONTACTOR (2) GASLIQUID IS CONTAINED AT LEAST AT A TEMPERATURE ADEQUATE AT A TEMPERATURE WITH AN ORGANIC SOLVENT (1) THAT CONTAINS A CATALYST, RECOVERING A GAS (20) THAT NO LONGER CONTAINS PRACTICALLY OR SULFURED HYDROGEN OR SULFUROUS ANHYDRIDE. THIS EFFLUENT CONTAINS SULFUR VAPOR. COOLING MIXING WITH A SOLVENT-WATER MIXTURE (14) OR WITH SOLVENT COOLED IN A THERMAL EXCHANGER (40) IN A REFRIGERATION AREA (7), SO THAT A SUSPENSION OF CRYSTALS OF Sulfur is obtained in the SOLVENT. THE CRYSTALLIZED SULFUR SEPARATES FROM THE SOLVENT IN A SEPARATION AREA (30), THE COOLING SOLVENT RECYCLING BELOW (13). AN EFFLUENT IS OBTAINED (17) SULFUR VAPOR EXEMPT.