EVAPORATION PLANT FOR PROCESS STREAM Russian patent published in 2019 - IPC B01D1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method and a system for removing heavy organic impurities from a process stream, wherein a method comprises feeding a process stream containing water and from about 0.5 to about 1.5 wt. % of heavy organic impurities. Method provides separation of water and heavy organic impurities in evaporation plant containing one or more stages of evaporation, to produce water condensate and liquid residue. Water condensate contains about 0.1 wt. % or less of heavy organic impurities. Liquid residue contains from about 3 to about 10 wt. % of heavy organic impurities.

EFFECT: invention provides a significant reduction in the amount of a bottom effluent stream of a quenching column; considerable energy saving in recycled flow.

24 cl, 2 dwg