FIELD: oil distillation. SUBSTANCE: method of mazut fractionating is carried out in two vacuum columns with circulating reflux. Light oil fraction of oily distillate with boiling out point 360 C (not above) of 98% distillate is removed from the line of upper circulating reflux of the first column and fed to the catalytic hydroparaffinization. Part of intermediate circulating reflux from the same column is taken off at concentration 5-15 wt. -% of removed oily distillate. EFFECT: improved method of light oil preparing. 1 dwg, 1 tbl
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Authors
Dates
1995-08-09—Published
1991-11-25—Filed