FIELD: oxidation purification of oil and gas condensate to remove hydrogen sulfide and mercaptans; applicable in oil and gas producing industry. SUBSTANCE: method includes oxidation of oil and gas condensate with air oxygen at pressure in presence of aqueous solution of monoethanolamine at temperature of 10-65 C. Method is distinguished by the fact that process is carried out in presence of elementary sulfur taken in form of 0.1-20% solution in 20-99% aqueous solution of monoethanolamine. This solution in amount of 0.02-25 wt.% of raw material and air in amount of 0.08-0.15 ncu.m per mole of hydrogen sulfide sulfur and 2 moles of mercaptan sulfur is introduced into oil or gas condensate by mixing, and mixture is held at pressure of 0.2-3.5 MPa for, at least, 5 min. EFFECT: simplified process of deodorizing purification of hydrocarbon raw materials from hydrogen sulfide and mercaptans, reduced consumption of reagents and extended fields of method application. 4 cl, 3 tbl
