| Titre : | Estimation of effectiveness factor for arbitrary particle shape and non-linear kinetics (2009) |
| Auteurs : | Néstor J. Mariani, Auteur ; Clarisa Mocciaro, Auteur ; Osvaldo M. Martínez, Auteur ; Guillermo F. Barreto, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N°3, Février 2009) |
| Article en page(s) : | p. 1172–1177 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Catalytic pellets -- analysis Generalized cylinder |
| Résumé : |
A one-dimensional model, called generalized cylinder (GC), is employed to analyze the diffusion−reaction problem in catalytic pellets of different shapes and nonlinear kinetics. The fitting parameter (σ) of the GC model was adjusted by matching the behavior of the actual pellet at high reaction rates. The errors of the GC model, considering five different kinetic expressions (isothermal zero and second order, isothermal Langmuir−Hinshelwood−Hougen−Watson type, first order exothermic, and first order endothermic) and four different catalytic pellet shapes turned out to be less than 3.5%. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie800578p |
