Recent research trends also indicated that by applying
the dealumination procedure, the mordenite can be
used as efficient catalyst in industrial processes, where
changes in the pore system and acidity are identified as
the two aspects responsible for improvement in catalytic
activity and stability of the dealuminated mordenite [9].
Framework dealumination can enhance the catalytic
activity of mordenite by improving pore channels andincreasing diffusion of the reaction molecules. Simultaneously,
dealumination also causes a decrease in total
number of acid sites, yet increases the strength of
remaining acid sites as a result of media effect, and
can enhance the activity of the catalyst in reactions such
as hydroisomerization of light alkanes [10]. Though,
dealumination causes change in both pore volume and
acidity, in most of the cases the results reported in the
literature supports the former i.e. change in pore system,
as a main factor responsible for improved catalytic
activity of the mordenite [11].