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Model-based experimental analysis of a fixed-bed reactor for catalytic SO2 oxidation / J. C. Schöneberger in Industrial & engineering chemistry research, Vol. 48 N° 11 (Juin 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5165–5176 Titre : Model-based experimental analysis of a fixed-bed reactor for catalytic SO2 oxidation Type de document : texte imprimé Auteurs : J. C. Schöneberger, Auteur ; H. Arellano-Garcia, Auteur ; Günter Wozny, Auteur Année de publication : 2009 Article en page(s) : pp. 5165–5176 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Nonlinear  experimental  design  Kinetic  models Résumé : In this work, a systematic approach based on nonlinear experimental design as an efficient tool for the validation of kinetic models is proposed which has the objective of computing experimental layouts, setups, and controls in order to optimize the statistical reliability of parameter estimates from the resulting experimental data. Furthermore, because the optimum experimental design is dependent on the values of the parameters, a sequential design is proposed. This represents an interaction between proposed experiments (e.g., inlet temperature and concentration), their evaluation, parameter estimation, and new design information such as reactor layout, sampling points, and temperature measurement positions. This follows an iterative procedure until all parameters achieve a prescribed statistical quality. Because of the fact that the overlaying optimization problem contains a highly nonlinear objective function, a hybrid optimization framework is also proposed to overcome the problem of local minima. To show the efficiency of the developed framework, it has been applied to the contact reaction. This reaction is a basic step in the sulfuric acid production and is carried out in a catalytic fixed-bed reactor called the contact horde. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801288d [article] Model-based experimental analysis of a fixed-bed reactor for catalytic SO2 oxidation [texte imprimé] / J. C. Schöneberger, Auteur ; H. Arellano-Garcia, Auteur ; Günter Wozny, Auteur . - 2009 . - pp. 5165–5176. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5165–5176 Mots-clés : Nonlinear  experimental  design  Kinetic  models Résumé : In this work, a systematic approach based on nonlinear experimental design as an efficient tool for the validation of kinetic models is proposed which has the objective of computing experimental layouts, setups, and controls in order to optimize the statistical reliability of parameter estimates from the resulting experimental data. Furthermore, because the optimum experimental design is dependent on the values of the parameters, a sequential design is proposed. This represents an interaction between proposed experiments (e.g., inlet temperature and concentration), their evaluation, parameter estimation, and new design information such as reactor layout, sampling points, and temperature measurement positions. This follows an iterative procedure until all parameters achieve a prescribed statistical quality. Because of the fact that the overlaying optimization problem contains a highly nonlinear objective function, a hybrid optimization framework is also proposed to overcome the problem of local minima. To show the efficiency of the developed framework, it has been applied to the contact reaction. This reaction is a basic step in the sulfuric acid production and is carried out in a catalytic fixed-bed reactor called the contact horde. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801288d