METHOD OF PREPARING OLEFIN HYDROCARBONS Russian patent published in 2000 - IPC

FIELD: chemical industry. SUBSTANCE: olefin hydrocarbons are prepared by dehydrogenation of corresponding paraffin hydrocarbons in the presence of catalyst which comprises, wt %: Cr₂O₃, 10.0-30.0; B₂O₃, 0.1-1.5; Me₂O, 0.5-2.5; SiO₂, 0.5-2.0; and Al₂O₃, the balance wherein Me is alkali metal. Process is carried out at temperature of 500-650 C, pressure of 1-2 absolute atmospheres and volumetric rate ranging from 100 to 500 h^-1.. After hydrogenation, catalyst is subjected to regeneration. EFFECT: increased yield of the desired products. 6 ex, 1 tbl