FIELD: chemical industry. SUBSTANCE: method of reducing concentration of toxic aromas by treating it with agent. Treatment is carried out by passing original hydrocarbon mixture together with at least one olefinic hydrocarbon through reaction zone containing fixed bed of particles of inert polar material in the presence of fluorinated sulfonic acid as catalyst and stream of alkylated hydrocarbons is then withdrawn form reaction zone. EFFECT: more efficient method. 6 cl, 1 dwg, 3 ex
