FIELD: crude oil treatment. SUBSTANCE: method of treating crude oil, before its transportation through pipeline, to remove hydrogen sulfide in order to reduce corrosion of pipeline consists in gas desorption in curled gas-liquid stream. Oil is dispersed into fine drops by high-speed hydrogen sulfide-free natural gas flow using countercurrent multistep oil-gas interaction, in each step co-current displacement of phases being provided so that overall displacement of phases in apparatus be countercurrent. EFFECT: ensured creation of high-developed contact surface of phases and enhanced mass transfer efficiency. 1 dwg
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