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Kinetic modeling of autothermal reforming of dimethyl ether / Derek Creaser in Industrial & engineering chemistry research, Vol. 49 N° 20 (Octobre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9712–9719 Titre : Kinetic modeling of autothermal reforming of dimethyl ether Type de document : texte imprimé Auteurs : Derek Creaser, Auteur ; Marita Nilsson, Auteur ; Lars J. Pettersson, Auteur Année de publication : 2011 Article en page(s) : pp. 9712–9719 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Kinetic  Autothermal Résumé : A global kinetic model was developed for the autothermal reforming of dimethyl ether (DME) over a Pd−Zn/Al2O3 catalyst on a cordierite monolith. A kinetic model consisting of five key overall reactions was found to capture the main features of experimental data. The modeling also accounted for heat transport effects in the reactor that are of importance when coupling the exothermic oxidation reactions with endothermic steam reforming reactions. The modeling confirmed that oxidation reactions dominate near the inlet of the reactor, generating a local hot spot. The heat from oxidation reactions accelerates the reforming reactions. Water adsorption was found to have a weak detrimental influence on the activity. On the basis of the model, the influence of the reactor scale and oxygen supply by air feed on the performance of the reactor was examined. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100834v [article] Kinetic modeling of autothermal reforming of dimethyl ether [texte imprimé] / Derek Creaser, Auteur ; Marita Nilsson, Auteur ; Lars J. Pettersson, Auteur . - 2011 . - pp. 9712–9719. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9712–9719 Mots-clés : Kinetic  Autothermal Résumé : A global kinetic model was developed for the autothermal reforming of dimethyl ether (DME) over a Pd−Zn/Al2O3 catalyst on a cordierite monolith. A kinetic model consisting of five key overall reactions was found to capture the main features of experimental data. The modeling also accounted for heat transport effects in the reactor that are of importance when coupling the exothermic oxidation reactions with endothermic steam reforming reactions. The modeling confirmed that oxidation reactions dominate near the inlet of the reactor, generating a local hot spot. The heat from oxidation reactions accelerates the reforming reactions. Water adsorption was found to have a weak detrimental influence on the activity. On the basis of the model, the influence of the reactor scale and oxygen supply by air feed on the performance of the reactor was examined. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100834v