CATALYST FOR DEHYDROGENATION OF C₃-C₅ PARAFFIN HYDROCARBONS, METHOD OF PRODUCING SAID CATALYST AND METHOD FOR DEHYDROGENATION OF C₃-C₅ PARAFFIN HYDROCARBONS

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to catalysts for dehydrogenation of paraffin hydrocarbons and methods of producing said catalysts, as well as methods of producing olefin hydrocarbons via catalytic dehydrogenation of corresponding C₃-C₅ paraffin hydrocarbons and can be used in chemical and petrochemical industry. Described is a catalyst for dehydrogenation of C₃-C₅ paraffin hydrocarbons, which contains chromium and potassium oxides and optionally zirconium dioxide, deposited on a solid solution of formula Zn_xAl₂O_(3+x) where x=0.025-0.25, with a defective spinel structure. Described is a method of producing the catalyst by hydrating a precursor of the solid solution, saturating with a mixture of solutions of chromic acid, potassium chromate and a zinc salt and optionally zirconyl nitrate, followed by drying and calcination in air, wherein hydration is carried out during the saturation process. A method of dehydrogenating paraffin hydrocarbons in the presence of said catalyst is also described.;EFFECT: high catalytic activity, selectivity and stability with low coke formation.;14 cl, 2 tbl, 12 ex