FIELD: oil refining industry.
SUBSTANCE: initial olefin-containing hydrocarbon material is brought in contact with catalyst of olefin modification in zone of reaction under conditions making it possible to obtain intermediate product having low degree of olefin non-saturation as compared with initial material which is measured by means of bromine number. Then, intermediate product is divided into at least three fractions at different volatility. First fraction whose boiling point is lowest is brought in contact with hydro-desulfurizing catalyst in presence of hydrogen under conditions which make it possible to convert at least part of sulfur to hydrogen sulfide. Fraction at intermediate boiling point is brought in contact with catalyst of selective hydraulic purification in presence of hydrogen under conditions which make it possible to convert at least part of sulfur to hydrogen sulfide.
EFFECT: improved quality of target product.
19 cl, 1 dwg, 6 tbl, 2 ex
