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 several assumptions were made in order to reduce the number of adjustable parameters. The major assumptions were that isobutene is only produced through monomolecular reactions and byproducts are only produced in reactions between two n-butene molecules or n-butene and isobutene.