Influence of indium content on the properties of Pt/Al2O3 naphtha reforming catalysts

The influence of indium content on the properties of the bimetallic Pt/Al2O3In catalysts was studied. The increase in the indium content from 0 to 2 % wt. enhances SBET, in this case the average pore diameter of supports is decreasing. Catalytic properties of the prepared systems were studied in the n-heptane reforming reactions. Indium introduction significantly reduces the selectivity of aromatization reactions and the overall activity of the catalyst, probably by reducing the overall acidity of the support, while increasing i-C5+ yield. Promotion of catalyst by indium in the amount of 0.6 %wt. reduces the yield of aromatic hydrocarbons by more than 3 times.