Kinetic model for skeletal isomerization of n-butene over ZSM-22

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.