ALUMINA SUPPORT, METHOD FOR MAKING ALUMINA SUPPORT AND METHOD FOR MAKING DEHYDROGENATION CATALYST OF C3-C5 PARAFFIN HYDROCARBONS ON THIS SUPPORT

FIELD: chemistry. ^ SUBSTANCE: group of inventions refers to supports (alumina support), to methods for making supports of catalysts activated in aerated layer and chrome-alumina catalyst for dehydrogenation of C3-C5 paraffin hydrocarbons to related olefines being monomers used for manufacturing of chemical rubbers, polymers, blending fuels. There is disclosed alumina support of boehmite morphology, specific surface 80 to 250 m2/g, pore size at least 0.2 cm3/g, microcrystallite size by coherent scattering region 500 to 3000 A. It contains interlayer water in amount corresponding to mole ratio aluminium oxide to water 0.8 to 1.2. There is described method for making support by high-temperature processing of hydrargillite in inert gas and/or ammonia, and/or carbon oxide medium at temperature 100 to 300°C and pressure 0.1 to 150 kgs/cm2 and following drying. Besides, there is disclosed method for making dehydrogenation catalyst of C3-C5 paraffin hydrocarbons by impregnation of support produced as described above with precursor solutions of chrome oxide, potassium oxide and activating agent representing, at least, one oxide chosen from the group: copper oxide, zinc oxide, manganous oxide, tin oxide, boron oxide, zirconium oxide, there after dried and baked at temperature 600 to 900°C. ^ EFFECT: production of alumina support, development of production methods and methods for making dehydrogenation catalyst on this support of high mechanical strength, low abrasiveness and high activity and selectivity in dehydrogenation of propane, isobutane and isopentane. ^ 7 cl, 2 tbl, 10 ex