FIELD: methods of pretreatment under pressure of natural gas containing hydrogen sulfide with possible combination with carbon dioxide. SUBSTANCE: at least one part of natural gas saturated with water and containing major part of hydrocarbons and considerable amount of hydrogen sulfide is brought in contact with at least one part of recirculation liquid condensate in one zone of contacting and evaporation at temperature from 0 to minus 100 C and pressure above 10 bars. Recuperated from head part of said zone is vapor phase containing hydrogen sulfide and hydrocarbons; recuperated from zone lower part is liquid effluent containing major part of hydrogen sulfide, water and minimal amount of hydrocarbons. At least partially vapor phase is cooled and condensed at temperature from minus 80 to minus 30 C in zone of cooling or pressure reduction. Produced condensate is separated in separation zone, and gas enriched with hydrocarbons and depleted in hydrogen sulfide is recuperated. Liquid condensate enriched with hydrogen sulfide and containing hydrocarbons is recirculated to contacting zone. Liquid effluent is introduced into development or other wells. EFFECT: higher efficiency of process. 10, cl, 1 dwg, 1 tbl
