| Titre : | Experimental and modeling analysis of methane partial oxidation : transient and steady-state behavior of rh-coated honeycomb monoliths (2009) |
| Auteurs : | Alessandra Beretta, Auteur ; Gianpiero Groppi, Auteur ; Matteo Lualdi, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 8, Avril 2009) |
| Article en page(s) : | pp. 3825–3836 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | 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 |
