FIELD: chemistry.
SUBSTANCE: invention relates to a method of processing a hydrotreatment fraction. Method includes: A) hydrotreating material in presence of a catalyst, containing a metal and an amorphous base or zeolite base; B) feeding hydrotreatment output stream into a fractionation zone; C) obtaining a lower stream from said fractionation zone; and D) passing at least part of said lower stream into an evaporator zone, forming a film, for separation of first stream, which contains fewer heavy polycyclic aromatic compounds than second stream.
EFFECT: proposed method enables to prevent accumulation of heavy polycyclic aromatic compounds.
9 cl, 5 dwg
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