| Titre : | Simultaneous hydrogenation of multiring aromatic compounds over NiMo catalyst (2008) |
| Auteurs : | A. R. Beltramone, Auteur ; D. E. Resasco, Auteur ; W. E. Alvarez, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 N°19, Octobre 2008) |
| Article en page(s) : | p. 7161–7166 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Multi-ring aromatic compounds Hydrogenation NiMo catalyst |
| Résumé : | Hydrogenation of six model feeds containing three-, two-, and one-ring aromatic compounds was investigated to gain insights into the aromatic hydrogenation reaction chemistry over a commercial NiMo catalyst under practical reaction conditions. The hydrogenation reactivity of the aromatic compounds followed the following order: phenanthrene ∼ two-ring aromatics ≫ one-ring aromatic. Comparison with previous studies revealed that the relative reactivity of the aromatic compounds is strongly influenced by the nature of the catalyst. Multiple-component feed studies showed that phenanthrene and naphthalene strongly inhibited the tetralin hydrogenation rate; however, naphthalene and tetralin had no appreciable effect on phenanthrene conversion. Langmuir−Hinshelwood-type rate equations were used to describe the reaction kinetics with physically meaningful and well-identified parameter values. The inhibition was attributed to competitive adsorption and was described in the kinetic model by adsorption terms that were obtained from the multicomponent feed experiments. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie8004258 |
