FIELD: chemistry.
SUBSTANCE: invention relates to apparatus for producing aromatic hydrocarbons from C3-C4 hydrocarbons and can be used in oil and gas industry. Invention relates to apparatus for separating products of catalytic aromatisation of C3-C4 hydrocarbons, including catalytic processing unit connected to air cooling apparatus, a fractionation unit connected to the separator with a residue feed line and a compressor. Multi-flow recuperation heat exchanger and high pressure separator are installed on the compressed gas separation line from the compressor, which is connected by the separation residue supply line to the fractionation unit, and separation gas supply line is with cryogenic gas separation unit, connected to fractionating unit by blowing gas supply line, and with multi-flow recuperative heat exchanger - lines of hydrogen-containing gas outlet and feed of recycle methane, which after multi-flow recuperative heat exchanger is connected with the raw material supply line after adjoining the supply line of non-converted raw material components from the fractionation unit, with formation of the raw mixture supply line to the catalytic processing unit.
EFFECT: technical result is simplification of installation, high output of aromatic hydrocarbons and inter-regeneration period.
1 cl, 1 dwg
