Hydroisomerization of n-octane over platinum catalysts with or without binder

The octane isomers selectivity for the agglomerated mordenite and beta samples was very similar to that in the non-agglomerated ones. ZSM-5 agglomerated sample yielded higher isomer selectivity than the non-agglomerated one. The higher neutralization of the acid sites by the binder was the responsible to that because leads to a higher concentration of carbenium ions, which provide the octane isomers. Also, the binder provided meso and macropores to the zeolite where the metal was likely located avoiding a possible pore partial blockage, with the consequently lower diffusional constraint of the reactants.