Dejaifve et al. (1981) showed that, with catalyst like H-ZSM-5, carbonaceous materials are mainly deposited on the outer surface. This lead to slight alteration to the shape-selective behaviors, with net resistance to deactivation. On the other hand, zeolites such as mordenite and offrerite showed different depositional mode due to their larger channels. They accommodated carbonaceous deposits inside the pores, and the zeolites are therefore more susceptible to activity decay than the H-ZSM-5 catalyst. Similar results have also been reported Svelle et al. (2007). In a related development, Haw et al. (2003) showed the topological difference between H-Ferrierite and H-ZSM-5, of comparable acidity, to yield a remarkable difference in terms of products distribution. The former catalyst produced mainly butenes and pentenes. It does not favor cyclization or the consequent production of methylbenzenes. On the other hand, the channel structure of H-ZSM-5 was susceptible to permit the reaction to proceeds by cyclization and possibly hydride transfer. Under this condition, olefins can easily be transformed into alkanes and aromatic products.