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Simultaneous hydrogenation of multiring aromatic compounds over NiMo catalyst / A. R. Beltramone in Industrial & engineering chemistry research, Vol. 47 N°19 (Octobre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N°19 (Octobre 2008) . - p. 7161–7166 Titre : Simultaneous hydrogenation of multiring aromatic compounds over NiMo catalyst Type de document : texte imprimé Auteurs : A. R. Beltramone, Auteur ; D. E. Resasco, Auteur ; W. E. Alvarez, Auteur Année de publication : 2008 Article en page(s) : p. 7161–7166 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : 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 [article] Simultaneous hydrogenation of multiring aromatic compounds over NiMo catalyst [texte imprimé] / A. R. Beltramone, Auteur ; D. E. Resasco, Auteur ; W. E. Alvarez, Auteur . - 2008 . - p. 7161–7166. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°19 (Octobre 2008) . - p. 7161–7166 Mots-clés : 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