FIELD: oil and gas industry.
SUBSTANCE: invention refers to paraffin hydrotreatment method involving the first stage at which the paraffin produced by means of Fischer-Tropsch synthesis is used as initial raw material, and paraffin contacts with the catalyst containing the metal of group VIII of the Periodic Table, which is applied to the carrier containing zeolite in presence of hydrogen for hydrocracking; the second stage at which initial raw material is converted for some time from paraffin to distilled oil obtained by means of distillation of the mixture containing paraffin hydrocracking product obtained at the first stage and hydrocracking product of fraction of middle distillates, which is obtained by means of Fischer-Tropsch synthesis, and distilled oil contacts with catalyst in conditions with reaction temperature of 160-330°C in presence of hydrogen for hydrocracking, and the third stage at which the initial raw material is converted again from distilled oil to paraffin, and paraffin contacts the catalyst in presence of hydrogen for hydrocracking. Invention also refers to base fuel obtaining method.
EFFECT: obtaining base fuel with adequately reduced content of normal paraffins.
3 cl, 3 ex, 1 tbl, 1 dwg
