METHOD OF PRODUCING WINTER DIESEL FUEL Russian patent published in 1995 - IPC

FIELD: oil processing. SUBSTANCE: method involves distillation of sulfurous oil and fractions preparing 96% of which were boiled out at the range 140-(280-310) and 210-(340-350) C. Mixture of these fractions (mass ratio is from 10: 90 to 35:65) is subjected for hydrorefining. Prepared fraction and fraction 96% of which is boiled out at the range 210-(340-350) C taken at the mass ratio from 10:90 to 90:10, respectively, were compounded with 30-50 wt. -% fraction 96% of which is boiled out at the range 140-(280-310) C. Depressing addition agent at concentration 0.01-0.5 wt.-% is added to the prepared basic fuel. Addition agent is a copolymer of ethylene with vinyl acetate (mass ratio is 0.5-1, molecular mass is 1000-500000). Addition agent can be added as solution in diesel fuel at concentration 2-7- wt.-% EFFECT: improved method of fuel producing. 2 cl, 3 tbl