METHOD TO PREPARE CATALYST FOR CONVERSION OF HYDROCARBONS Russian patent published in 2011 - IPC B01J23/755 B01J37/02 B01J21/04 B01J37/04 C01B3/38 

FIELD: technological processes.

SUBSTANCE: invention relates to a technology to prepare catalysts for conversion of hydrocarbons and may be used in chemical industry, for instance, to produce technical hydrogen from natural gas and processes gases required for synthesis of ammonia and methanol. The method is described to prepare a catalyst for conversion of hydrocarbons, including mixing of alumina with a functional additive and 20% nitric acid to produce a homogeneous plastic paste, its moulding, curing, drying and baking, double impregnation of the produced carrier in solutions of nickel and aluminium nitrates with subsequent drying and baking, at the same time mixing of alumina and functional additive is combined with grinding and mechanical-chemical activation for 45-60 min, afterwards the nitric acid is added in amount of 0.18-0.20 l/kg of material, the plastic paste produced during subsequent mixing is formed into blocks of cellular structure, baking prior impregnation of the carrier is carried out at the temperature of 1200-1250°C for 4-6 hrs, and the functional additive is 3-7 wt % of paraffin.

EFFECT: increased external active surface of the catalyst and reduction of its hydraulic resistance.

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