METHOD OF DISTILLATION OF BENZENE FRACTIONS Russian patent published in 1994 - IPC

FIELD: fuel oil distillation. SUBSTANCE: method comprises steps of distilling benzene fractions C₂-C₁₀ in an atmospheric tower with sprinkling; maintaining constant ratio of low-boiling and high-boiling components, being fed; at increasing a quantity of high-boiling fractions, being supplied, relative to their initial content in a raw material adding a product out of a top portion of the tower and upon increasing a quantity of low-boiling fractions, being supplied, introducing to the raw material a necessary quantity of residue, had been taken of low part of the tower after that part had been heated. EFFECT: enhanced efficiency. 1 cl, 1 dwg, 1 tbl