FIELD: oil and gas industry. SUBSTANCE: proposed plant includes absorber mounted in crude gas line and fine cleaning absorber connected with first one, desorber connected with fine cleaning absorber by means of saturated and regenerated solution lines, absorber for selective extraction of hydrogen sulfide, additional desorber connected with sulfur producing unit and with absorber for selective extraction of hydrogen sulfide by means of regenerated solution line, as well as absorber mounted in crude gas line and saturated absorbent line. Absorber for selective extraction of hydrogen sulfide is connected with desorber by means of acid gas line; additional desorber is connected with absorber mounted in crude gas line by means of semi-regenerated absorbent line which is connected with semi- saturated solution line escaping from absorber for selective extraction of hydrogen sulfide. EFFECT: enhanced degree of conversion of hydrogen sulfide into sulfur; reduced amount of toxic emissions. 1 dwg
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