FIELD: petroleum processing. SUBSTANCE: preheated gas condensate is separated on rectification column to give top distillate, side-cut distillatem and vat residue. To discharge distillation section of column, part of material is run off from the plate disposed in the middle of section, heated in furnace, and separated in separator. Liquid phase is returned below run-off level, and vapor phase above run-off level. EFFECT: increased separation accuracy and increased productivity of column, and increased economical efficiency. 1 dwg, 1 tbl
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