METHOD FOR ISOMERIZATION OF LIGHT PARAFFIN HYDROCARBONS C4-C6 Russian patent published in 2001 - IPC

FIELD: petrochemical processes. SUBSTANCE: hydrocarbons are subjected to isomerization at 170-270 C, pressure 0.8-4.0 MPa, hydrogen-to-hydrocarbons molar ratio (0.2-10):1, and feedstock volume flow rate 0.2-5.0 h^-1 on catalyst containing 0.2 to 1.0% platinum or palladium supported by aluminum and zirconium oxide mixture at weight ratio (0.26-0.03):1 and promoted by sulfate at weight ratio of sulfate to summary amount of the two support oxides (0.005-0.11):1. Catalyst is also promoted chloride, chloride-to-sulfate weight ratio being equal to 0.005:1. EFFECT: stabilized hydrocarbon isomerization extent. 2 cl, 2 tbl, 16 ex