PLASMA-CHEMICAL METHOD FOR PREPARING HYDROCARBON DEHYDROGENATION CATALYST Russian patent published in 2008 - IPC B01J37/34 B01J23/26 B01J21/04 C07C5/333 

FIELD: hydrogenation-dehydrogenation catalysts.

SUBSTANCE: invention relates to methods of preparing alumino-chromium catalysts for dehydrogenation of paraffin hydrocarbons, preferably С₂-С₅, into corresponding olefins using low-temperature plasma. Plasma-chemical method for preparing catalyst comprises heat treatment of starting reactants taken in the form of aluminum and chromium carbonyl powders in the flow of low-temperature air plasma, said reactants being fed separately to the air plasma stream and to reactor in the form of argon-carried air sol in amount large enough to obtain catalyst containing 10-25% chromium oxide and 75-90% aluminum oxide. Resulting catalyst is cooled in the form of dust-gas stream to 30-50°C and recovered.

EFFECT: increased productivity of procedure, yield, and purity of target material, and increased catalyst activity.

1 dwg