In order to process refinery gas streams into environmentally friendly motor fuels, it has been proposed to use superacid catalytic systems based on sulfated zirconium oxide, mixed heteropoly acids, and nanosized nickel powder supported on acid-activated montmorillonite. We have studied the characteristics of the effects of temperature and catalyst composition on the oligomerization process of the butane-butene fraction, obtaining C-5-C-12 iso-olefins.