FIELD: chemical processes.
SUBSTANCE: invention relates to a plant for catalytic processing of light hydrocarbon raw materials for the purpose of producing aromatic hydrocarbons, including a catalytic processing unit, a catalysate separation unit included in an air cooling apparatus, a separator, a compressor with a refrigerator, and an adsorption purification assembly, also including a fractionation unit. A reflux column with a cooling unit is installed as a separator, equipped with a reflux liquid output line, connected by a reflux gas output line equipped with a compressor, an air cooling apparatus and a refrigerator, with a fractionating absorber provided with a cooling unit and equipped with a stripped gas output line, located whereon is an adsorption purification assembly equipped with a stripping gas supply line and connected by a regeneration gas output line with the reflux column and by a dry gas output line, with a membrane set equipped with a hydrogen-containing gas output line and connected with the catalytic processing assembly by a methane-containing circulating gas output line. The fractionation unit is equipped with aromatic hydrocarbon output lines and is connected with the reflux column by the reflux liquid supply line, with the fractionating absorber by lines for outputting the absorbent from the fractionation unit and supplying a saturated absorbent to the fractionation unit, and with the reflux gas or methane-containing circulating gas supply line, by an exhaust gas output line, also, the raw material supply line is connected with the methane-containing gas supply line and then with the cooling unit of the fractionating absorber, refrigerator, and cooling unit of the reflux column.
EFFECT: facilitated installation and increased inter-regeneration run of the catalyst.
2 cl, 1 dwg
