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A Mathematical Approach to the Balancing of Mass Transfer and Reaction Kinetics in Dual Kinetic Model for Automotive Catalysis
Technical Paper
2014-01-2821
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
One of the most critical aspects in the development of a kinetic model for automotive applications is the method used to control the switch between limiting factors over the period of the chemical reaction, namely mass transfer and reaction kinetics. This balance becomes increasingly more critical with the automotive application with the gas composition and gas flow varying throughout the automotive cycles resulting in a large number of competing reactions, with a constantly changing space velocity. A methodology is presented that successfully switches the limitation between mass transfer and reaction kinetics. This method originally developed for the global kinetics model using the Langmuir Hinshelwood approach for kinetics is presented. The methodology presented is further expanded to the much more complex micro-kinetics approach taking into account various kinetic steps such as adsorption/desorption and surface reactions. The dual kinetic model is then tested against experimental data from two lab reactors one using spatially resolved data and one using the conventional end pipe analysis.
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Stewart, J., Douglas, R., Goguet, A., Stere, C. et al., "A Mathematical Approach to the Balancing of Mass Transfer and Reaction Kinetics in Dual Kinetic Model for Automotive Catalysis," SAE Technical Paper 2014-01-2821, 2014, https://doi.org/10.4271/2014-01-2821.Also In
References
- Stewart , J. , Douglas , R. , Goguet , A. , and Glover , L. , Limitations of Global Kinetic Parameters for Automotive Application SAE Technical Paper 2012-01-1638 2012 10.4271/2012-01-1638
- Voltz , S. E. , Morgan , C. R. , Liederman , D. , and Jacob , S.M. Kinetic Study of Carbon Monoxide and Propylene Oxidation on Platinum Catalysts Ind. Eng. Chem. Prod. Res. Develop. 12 4 294 301 1973
- Dubien , C. , Schweich , D. , Mabilon , G. , Martin , B. and Prigent , M. , Three-way catalytic converter modelling: fast and slow-oxidizing hydrocarbons, inhibiting species, and steam-reforming reaction Chem. Eng. Sci. 53 481 1997
- Dumesic , J. A. , Rudd , D. F. , Aparicio , L. M. et al. The microkinetics of heterogeneous catalysis Washington, DC American Chemical Society 1993
- Sjoblom , J. and Creaser , D. , New approach for microkinetic mean-field modelling using latent variables Comput Chem Engng 2008 32 12 3121 3129
- McCullough , G. , Douglas , R. , Cunningham , G. , and Foley , L. , The development of a two-dimensional transient catalyst model for direct injection two-stroke applications Proc IMechE Part D: J Automobile Engineering 2001 215 8 919 933
- Stewart , J. , Douglas , R. , and Goguet , A. , Integrating intrinsic and global kinetics as a dual kinetic model for automotive catalysis Proc IMechE Part D: J Automobile Engineering 2014 228 3 285 294 10.1177/0954407013508379
- Hauptmann W , Votsmeier M , Vogel H and Vlachos DG. Modelling the simultaneous oxidation of CO and H2 on Pt - promoting effect of H2 on the CO-light-off Appl Catal A 2011 397 174 182
- Oh S. H. , Cavendish J. Ind. Eng. Chem. Prod. Res. Dev. 1982 21 29
- Tsinoglou D. , Koltsakis G. C. IMechE Part D J. Automobile Engineering 2002 218 565
- Tsinoglou D. N. , Koltsakis G. C. Ind. Eng. Chem. Res. 2002 41 1152
- Khossusi T. , McCullough G. , Douglas R. IMechE Part D J.Automobile Engineering 2004 218 1349
- Sa J. , Fernandes D. L. A. Aiouache F. , Goguet A. , Hardacre C. , Lundie D. Roy. Soc. Chem. 2010 135 2260