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 a unit for separation of products of catalytic aromatization of light hydrocarbons, which includes a catalytic processing unit connected to an air cooling apparatus, a separator, a compressor and a fractionation unit. 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 the separation gas supply line is connected to the cryogenic gas separation unit, which is connected to the fractionation unit with the blowing gas feed line, the hydrogen-containing gas supply line - to the hydrogen recovery unit equipped with the hydrogen discharge lines and the exhaust gas supply to the separation gas supply line, and a recycle methane feed line - with a multi-flow recuperative heat exchanger, after which the latter is connected to the feed line after adjoining the feed line of unconverted raw material components from the fractionation unit to form a crude mixture feed line into the catalytic processing unit.
EFFECT: technical result is simplification of installation, high output of aromatic hydrocarbons and inter-regeneration period.
1 cl, 1 dwg
