FIELD: petroleum processing and petrochemistry.
SUBSTANCE: stream of liquid hydrocarbon product comprising 5% or less impurities with molecular weight at least 1000 is brought into contact with hydrophobic nonporous or nanofiltration membrane discharging purified product in the form of permeate. A variety of liquid hydrocarbon products, including those having styrene, isoprene, butadiene, pentadiene, dicyclopentadiene, piperylene, C2-C5-monoolefins, and acrylate as chief components, can be similarly treated.
EFFECT: enhanced process efficiency and reduced cost in cases with high-molecular weight impurities.
9 cl, 1 dwg
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