FIELD: petrochemical processes and catalysts.
SUBSTANCE: invention concerns catalytic process for obtaining isooctane fractions via alkylation of isobutane with butylene fractions. Process involves catalytic complex having following composition: MexOy*aAn-*bCnClmH2n+2-m, wherein Me represents group III-IV metal, x=1-2, y=2-3, and An- anion of oxygen-containing acid selected from sulfuric, phosphoric, molybdenic, and tungstenic acid, or mixture thereof in any proportions; a=0.01-0,2, b=0.01-0.1; bCnClmH2n+2-m is polychlorine-substituted hydrocarbon with n=1-10 and m=1-22, dispersed on porous support and containing hydrogenation component. Alkylation process is carried out at temperature not exceeding 150°C, mass flow rate of starting mixture not higher than 3 g/g cat*h, pressure not higher than 40 atm, and in presence of 10 mol % hydrogen.
EFFECT: increased catalyst stability and selectivity.
5 cl, 3 tbl, 20 ex
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