METHOD FOR PURIFICATION OF EXHAUST GASES OF METALLURGICAL PLANTS FROM HYDROGEN SULFIDE Russian patent published in 2021 - IPC B01D53/52 B01D53/74 B01D53/86 B01J20/02 B01J20/06 

FIELD: gas purification.

SUBSTANCE: invention relates to methods for purifying gases from hydrogen sulfide, namely to methods for purifying gases from hydrogen sulfide using ferromanganese material. The invention can be used to purify the exhaust gases of ferrous and non-ferrous metallurgy from hydrogen sulfide. A method for cleaning the exhaust gases of metallurgical plants from hydrogen sulfide involves passing a gas containing hydrogen sulfide through a layer of ore in a sorption apparatus. Ferromanganese ore is used as ore, the gas mixture is purified at a temperature from -21 to 25°C, the feed rate to the reaction cell is from 14 to 17 liters/hour and the phase contact time is no more than 60 seconds to obtain purified process gas, which is sent to the atmosphere, and ferromanganese ore, on the surface of which elemental sulfur has deposited, is sent for further processing.

EFFECT: this method provides complete purification of the gas mixture due to the oxidation of hydrogen sulfide to elemental sulfur.

1 cl, 2 dwg, 1 tbl, 2 ex