Reformado de n-octano sobre catalizadores Pt-Re-Ni/Al2O3

A. OLIVEIRA; J.M. GRAU; C. L. PIECK; M.C. RANGEL; J.M. PARERA; N.S. FÍGOLI

Foz do Iguacu, PR - Brasil

Congreso; 13º Congresso Brasileiro de Catálise 3º MercoCat; 2005

The effect of Re and Ni addition to a Pt/Al2O3 catalyst was studied. Mono, bi and trimetallic catalysts were prepared; they were sulfurized and used in the n-octane reaction at 450 °C, atmospheric pressure, WHSV = 3,4 and H2:n-octane (molar) = 7.3 during 6 h. It was found that the catalyst containing 0.3% Pt and Re and 0.08% Ni presents a better behaviour than Pt and Pt-Re/Al2O3. This is the optimum Ni concentration; a less convenient behaviour was obtained with lower or higher Ni concentrations. Ni addition modifies the catalyst acidity