Application of a Simple Lumped Kinetic Model for the Catalytic Cracking Reaction of n-Butane Over the HZSM-5 Zeolite

Abstract A simple lumped kinetic model appliedto n -butane catalytic cracking over synthesized HZSM-5 zeolite, with SiO2/Al2O3=484 in a stainless steel plug flow reactor under various operating conditions developed. To suitably estimate the kinetic parameters of catalytic cracking reactions of n -butane, a lumped kinetic modelconsisted of 6 reaction steps and 5 lumped compoundsconsidered. The Levenberg-Marquardt algorithm utilized toestimate kinetic parameters using MATLAB R.7.10 software.In order to confirm the significance of optimized parameters, the statistical F-test and variance analysis indicatingthe accuracy of the calculated data were employed. Furthermore, the validity of the model was confirmed. Ultimately, results from the proposed kinetic model showed excellent agreement with experimental data.