METHOD FOR TREATMENT OF SYNTHETIC OIL, PROCESS FOR PRODUCTION OF HYDROCARBON OIL, HYDROCARBON OIL FOR HYDROGEN PRODUCTION, HYDROCARBON OIL FOR THE SMOKE POINT IMPROVER FOR KEROSENE, AND HYDROCARBON OIL FOR DIESEL FUEL BASE

摘要

FIELD: oil and gas industry.;SUBSTANCE: method involves the first stage of fractional distillation, at which the material that shall be treated and that contains synthetic oil obtained by means of Fisher-Tropsch synthesis is subject to fractional distillation in order to obtain middle distillate that contains the fraction having boiling temperature of 150-360°C, in quantity of 90 wt % or more in view to middle distillate, and paraffin distillate that is heavier than middle distillate; hydrotreatment stage at which middle distillate obtained at the first fractional distillation stage is subject to hydrotreatment by bringing the above middle distillate into contact with hydrotreatment catalyst in presence of hydrogen so that the fraction having boiling temperature of 150°C or less than that of middle distillate has content (wt %) with degree of increase of 9 wt %, or less after contact with catalyst; the second fractional distillation stage at which middle distillate that passed through hydrotreatment stage is subject to fractional distillation so that the first fraction is obtained, which contains the fraction having boiling temperature of 150-250°C, in quantity of 90 wt % or more with view to the first fraction, and the second fraction that is heavier than the first one; hydrocracking stage at which paraffin distillate obtained at the first fractional distillation stage is subject to hydrocracking by bringing the above paraffin distillate into contact with hydrocracking catalyst in presence of hydrogen; the third fractional distillation stage at which paraffin distillate that passed through hydrocracking stage is subject to fractional distillation so that the third fraction is obtained, which contains the fraction having boiling temperature of 150-360°C, in quantity of 90 wt % or more with a view to the third fraction; and mixing stage at which the second and the third fractions are mixed. Invention also refers to hydrocarbon oil and method for obtaining hydrocarbon oils.;EFFECT: obtaining hydrocarbon oils with high yield, achieving economy of the process for obtaining fuel at high levels.;9 cl, 15 ex, 4 tbl, 2 dwg