METHOD IS ISOMERIZATION OF PARAFIN HYDROCARBONS Russian patent published in 2000 - IPC

FIELD: oil refining and petrochemical industries. SUBSTANCE: isomerization of paraffin hydrocarbons is carried out at temperature of 250-300 C, pressure of 1.0-2.5 MPa on catalyst having acidity of 1.2-1.7 mmole of NH₃/g catalyst comprises, wt %: platinum or palladium or mixture of platinum or palladium with promoter selected from rhenium, manganese, nickel or copper containing 0.1-0.6 wt % thereof in catalyst, zeolite beta, or mixture of zeolite beta or mixture of zeolite beta and ZSM-5 or ZSM- 12, 0.2-0.8 at weight ratio thereof of 3-20:1 with zeolite beta silicate module, 10-100 and zeolite ZSM-30- 30-20, 30-80; and aluminium oxide, up to 100. EFFECT: increased activity and stability of the process. 2 cl, 20 ex, 1 tbl