Influence of W loading, support type, and preparation method on the performance of zirconia or alumina-supported Pt catalysts for n-dodecane hydroisomerization

Catalysts based on zirconia and alumina-supported tungsten oxides (3–18 wt% W) with a small loading of platinum (0.3 Pt) were selected to study the influence W loading, support type, preparation methods hydroisomerization n-dodecane. The alumina- zirconia-supported catalysts show different catalytic properties that play an important role in n-dodecane conversion. Specific surface area acidity are clearly higher than those counterparts. 15 loaded found exhibit best performance for both alumina (67% n-C12 conversion 87% i-C12 selectivity) catalysts. prepared by single-step wet impregnation method more active via several consecutive steps.