FIELD: chemical industry.
SUBSTANCE: invention relates to a method for removing heavy hydrocarbons from a solvent stream. Method is carried out by feeding the first portion of the mixture and a light hydrocarbon into a static mixer, the first portion of the mixture contains heavy hydrocarbons and at least one solvent. Then the first portion of the mixture and light hydrocarbon is mixed in a static mixer and a mixture containing heavy hydrocarbons, at least one solvent and a light hydrocarbon is fed to the separator of the first stage. Then extraction from the separator of the first stage of heavy hydrocarbons and light hydrocarbons from a mixture containing heavy hydrocarbons, at least one solvent and a light hydrocarbon. Solvent phase is removed from the separator of the first stage from a mixture containing heavy hydrocarbons, at least one solvent and a light hydrocarbon. Next, the washing heavy hydrocarbons and light hydrocarbons with wash water in the separator of the second stage is carried out, along with removal of the specified wash water from the separator of the second stage and entrainment of the solvent and separation of the effluent stream containing heavy hydrocarbons, with fresh water being fed to the top of the second stage separator.
EFFECT: proposed invention relates to a method for removing heavy hydrocarbons from a solvent stream.
8 cl, 3 dwg, 1 ex
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