FIELD: chemistry.
SUBSTANCE: invention relates to oligomerisation of ethylene into linear alpha-olefins. Invention relates to a method for treating an effluent stream in which an effluent containing hydrocarbons and a polymer is removed from the oligomerisation reactor; directing the output flow into a gaseous or liquid cooling flow; passing the effluent through the heat exchanger after direct contact of the outlet stream with the cooling flow; wherein, after passing the effluent through heat exchanger, heat exchanger essentially does not contain polymer deposits. Invention also relates to an embodiment of the method.
EFFECT: technical result is reduction of formation of by-products in hydrocarbon flow and prevention of polymer contamination of downstream pipeline and equipment.
18 cl, 1 dwg
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