SULFUR PLANT Russian patent published in 2023 - IPC C01B17/04 B01D53/48 B01D53/86 

FIELD: oil refining ; chemical industries.

SUBSTANCE: devices for cleaning gases from hydrogen sulfide to produce sulfur. The sulfur recovery plant includes a reactor 1 with a hydrogen sulfide oxidation catalyst equipped with a heat exchanger located in the catalyst bed, equipped with hydrogen sulfide-containing gas 8 and air 10 supply lines, a reaction products outlet line, on which a sulfur trap is located, equipped with sulfur and gas outlet lines. The sulfur trap is made in the form of a two-section scrubber 2, the first section of which is equipped with a supply line for the balance part of the aqueous suspension of sulfur 12, and the second section is equipped with a supply line for the circulating part of sulfur 13. A pump 4 is installed on the sulfur output line 14, after which the line 14 is divided into a supply line for the circulating part of sulfur 13 and an output line for the balance part of sulfur 15. Scrubber 2 is equipped with a desulfurised gas outlet line 16, on which a scrubber-cooler 3 is installed, equipped with an off-gas outlet line 18 with its utilization unit 7 and a sulfur suspension outlet line 19 with a pump 5 and a cooler 6. After the cooler 6, line 19 is divided into the line for supplying the circulating part of the sulfur suspension 17 to the scrubber-cooler 3 and the line for outputting the balance part of the sulfur suspension 12.

EFFECT: minimization of environmental pollution by reducing the content of elemental sulfur in the exhaust gas.

1 cl, 1 dwg, 1 ex