ZSM-5 was prepared without the aid of an organic template. Effect of s
ynthesis parameters on its catalytic activity in aromatisation of n-he
ptane are discussed. Addition of seed material increased the crystalli
nity of the ZSM-5 phase. The catalytic activity was comparable with a
sample prepared using an organic template. Formation of higher amount
of C9+ aromatics was observed over the non-templated zeolite.