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Reaction Engineering, Kinetics, and Catalysis
Chemical kinetic modeling of i-butane and n-butane catalytic cracking reactions over HZSM-5 zeolite
Article first published online: 19 OCT 2011
DOI: 10.1002/aic.12750
Copyright © 2011 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Roohollahi, G., Kazemeini, M., Mohammadrezaee, A. and Golhosseini, R. (2012), Chemical kinetic modeling of i-butane and n-butane catalytic cracking reactions over HZSM-5 zeolite. AIChE J., 58: 2456–2465. doi: 10.1002/aic.12750
Publication History
- Issue published online: 5 JUL 2012
- Article first published online: 19 OCT 2011
- Accepted manuscript online: 8 AUG 2011 01:31PM EST
- Manuscript Revised: 23 JUL 2011
- Manuscript Received: 12 APR 2011
- Abstract
- Article
- References
- Cited By
Keywords:
- i-butane;
- n-butane;
- kinetic model;
- HZSM-5;
- catalytic cracking
Abstract
A chemical kinetic model for i-butane and n-butane catalytic cracking over synthesized HZSM-5 zeolite, with SiO2/Al2O3 = 484, and in a plug flow reactor under various operating conditions, has been developed. To estimate the kinetic parameters of catalytic cracking reactions of i-butane and n-butane, a lump kinetic model consisting of six reaction steps and five lumped components is proposed. This kinetic model is based on mechanistic aspects of catalytic cracking of paraffins into olefins. Furthermore, our model takes into account the effects of both protolytic and bimolecular mechanisms. The Levenberg–Marquardt algorithm was used to estimate kinetic parameters. Results from statistical F-tests indicate that the kinetic models and the proposed model predictions are in satisfactory agreement with the experimental data obtained for both paraffin reactants. © 2011 American Institute of Chemical Engineers AIChE J, 58: 2456–2465, 2012