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Modeling the partial oxidation of o-xylene in an industrial packed-bed catalytic reactor: the role of hydrodynamics and catalyst activity in the heat transport / C. O. Castillo-Araiza in Industrial & engineering chemistry research, Vol. 49 N° 15 (Août 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 15 (Août 2010) . - pp 6845–6853 Titre : Modeling the partial oxidation of o-xylene in an industrial packed-bed catalytic reactor: the role of hydrodynamics and catalyst activity in the heat transport Type de document : texte imprimé Auteurs : C. O. Castillo-Araiza, Auteur ; F. Lopez-Isunza, Auteur Année de publication : 2010 Article en page(s) : pp 6845–6853 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Partial  oxidation  Catalytic  reactor  Hydrodynamics  Heat  transport. Résumé : In this work, the role of hydrodynamics in an industrial-scale packed-bed catalytic reactor with a low tube/particle diameter ratio (dt/dp 3) and the role of redox dynamics of the catalyst surface together with the use of a catalyst activity profile are assessed on the heat transport during the partial oxidation of o-xylene on a V2O5/TiO2 catalyst. Temperature and concentration observations at different steady-state conditions are used to test the modeling approach, and reasonably good predictions are obtained when (1) the information contained in the heat-transport parameters, estimated from a boundary layer approximation to the hydrodynamics in the absence of chemical reactions [Ind. Eng. Chem. Res. 2007, 46 (23), 7426−7435], is used in the reactor model and (2) the redox catalyst dynamics, included in the reaction kinetics, is used, together with an empirical catalyst activity profile. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901720z [article] Modeling the partial oxidation of o-xylene in an industrial packed-bed catalytic reactor: the role of hydrodynamics and catalyst activity in the heat transport [texte imprimé] / C. O. Castillo-Araiza, Auteur ; F. Lopez-Isunza, Auteur . - 2010 . - pp 6845–6853. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 15 (Août 2010) . - pp 6845–6853 Mots-clés : Partial  oxidation  Catalytic  reactor  Hydrodynamics  Heat  transport. Résumé : In this work, the role of hydrodynamics in an industrial-scale packed-bed catalytic reactor with a low tube/particle diameter ratio (dt/dp 3) and the role of redox dynamics of the catalyst surface together with the use of a catalyst activity profile are assessed on the heat transport during the partial oxidation of o-xylene on a V2O5/TiO2 catalyst. Temperature and concentration observations at different steady-state conditions are used to test the modeling approach, and reasonably good predictions are obtained when (1) the information contained in the heat-transport parameters, estimated from a boundary layer approximation to the hydrodynamics in the absence of chemical reactions [Ind. Eng. Chem. Res. 2007, 46 (23), 7426−7435], is used in the reactor model and (2) the redox catalyst dynamics, included in the reaction kinetics, is used, together with an empirical catalyst activity profile. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901720z