FIELD: performing operations.
SUBSTANCE: present invention relates to emergency distillation column and to its use, in particular, for regeneration of waste oils. Waste oil recovery plant consists of two separate fractionating segments, one of which consists of main distillation column (1), and the other one consists of emergency distillation column (2), preferably under vacuum. Said two segments act in a complementary manner, and one supports the other. Emergency distillation column (2) is connected to main distillation column (1) by means of an outlet from pipelines that feed said main distillation column (1). Said outlet has liquid shutoff devices which enable to supply said emergency distillation column (2) when pressure drops downstream relative to main distillation column (1) exceed a predetermined threshold value.
EFFECT: absence of clogging and downtime of the installation for cleaning the column and possible replacement of the nozzle.
11 cl, 1 dwg
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