ISOMERISATION OF AROMATIC COMPOUNDS WITH APPLICATION OF DOUBLE CATALYST SYSTEM Russian patent published in 2015 - IPC C07C15/08 C07C5/27 B01J23/30 B01J23/40 B01J29/00 

FIELD: chemistry.

SUBSTANCE: invention relates to method of conversion of hydrocarbon mixture, containing large concentration of non-equilibrium aromatic C₈ compounds and inconsiderable concentration of non-aromatic compounds. Conversion is realised by contact of mixture with double catalyst system, including first catalyst, containing tungsten component, and second catalyst, containing from 0.01 to 0.2 wt %, counted per element, at least, of one metal of platinum group, under conditions of hydrocarbon conversion, including temperature from 300° to 550°C, pressure from 100 kPa to 5 MPa and hour volume liquid rate from 0.5 to 50 h^-1 relative to double catalyst system, with obtaining converted product, containing lower concentration of ethylbenzene and lower concentration of non-aromatic compounds than concentration in raw material mixture.

EFFECT: highly pure product.

8 cl, 6 ex