A kinetic model for n-butene transformation over ZSM-22 was developed. The
effects of temperature, partial pressure, and deactivation on the formation
of isobutene and byproducts were included in the model. The model was able
to predict n-butene transformation over ZSM-22 reasonably well, although s
everal assumptions were made in order to reduce the number of adjustable pa
rameters. The major assumptions were that isobutene is only-produced throug
h monomolecular reactions and byproducts are only produced in reactions bet
ween two n-butene molecules or n-butene and isobutene.