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Experimental and modeling analysis of methane partial oxidation / Alessandra Beretta in Industrial & engineering chemistry research, Vol. 48 N° 8 (Avril 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 3825–3836 Titre : Experimental and modeling analysis of methane partial oxidation : transient and steady-state behavior of rh-coated honeycomb monoliths Type de document : texte imprimé Auteurs : Alessandra Beretta, Auteur ; Gianpiero Groppi, Auteur ; Matteo Lualdi, Auteur Année de publication : 2009 Article en page(s) : pp. 3825–3836 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Rh-coated  honeycomb  monoliths  Methane  partial  oxidation  Steady  state Résumé : The present study consists of an experimental and theoretical study of the performance of Rh-coated honeycomb monoliths for methane partial oxidation. The thermal behavior of Rh-coated honeycomb monoliths was studied under representative operating conditions, at steady state and during light-off. Model analysis (based on a dynamic heterogeneous reactor model that incorporates a kinetic scheme of the process independently developed, and well-assessed correlations for heat and mass transfer) provided a key for interpreting the observed effects. The comprehension of how transport phenomena and surface kinetics affect the reactor behavior leads to the conclusion that the feasibility of small-scale production of syngas via CH4 catalytic partial oxidation relies on thermal management of the short contact time reactor and not the obtainment of high syngas yields (which is not a challenging task). Severe operating conditions (and high surface temperatures) can deplete the catalyst activity and cause unstable reactor operation. Guidelines for optimal reactor design are proposed. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8017143 [article] Experimental and modeling analysis of methane partial oxidation : transient and steady-state behavior of rh-coated honeycomb monoliths [texte imprimé] / Alessandra Beretta, Auteur ; Gianpiero Groppi, Auteur ; Matteo Lualdi, Auteur . - 2009 . - pp. 3825–3836. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 3825–3836 Mots-clés : Rh-coated  honeycomb  monoliths  Methane  partial  oxidation  Steady  state Résumé : The present study consists of an experimental and theoretical study of the performance of Rh-coated honeycomb monoliths for methane partial oxidation. The thermal behavior of Rh-coated honeycomb monoliths was studied under representative operating conditions, at steady state and during light-off. Model analysis (based on a dynamic heterogeneous reactor model that incorporates a kinetic scheme of the process independently developed, and well-assessed correlations for heat and mass transfer) provided a key for interpreting the observed effects. The comprehension of how transport phenomena and surface kinetics affect the reactor behavior leads to the conclusion that the feasibility of small-scale production of syngas via CH4 catalytic partial oxidation relies on thermal management of the short contact time reactor and not the obtainment of high syngas yields (which is not a challenging task). Severe operating conditions (and high surface temperatures) can deplete the catalyst activity and cause unstable reactor operation. Guidelines for optimal reactor design are proposed. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8017143