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Accelerated deactivation of hydrotreating catalysts by coke deposition / Marcelo Edral Pacheco in Industrial & engineering chemistry research, Vol. 50 N° 10 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 10 (Mai 2011) . - pp. 5975-5981 Titre : Accelerated deactivation of hydrotreating catalysts by coke deposition Type de document : texte imprimé Auteurs : Marcelo Edral Pacheco, Auteur ; Vera Maria Martins Salim, Auteur ; Jose Carlos Pinto, Auteur Année de publication : 2011 Article en page(s) : pp. 5975-5981 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Coke  deposition  Catalyst  Hydrotreating  Deactivation Résumé : Pilot plant experiments are designed to allow for evaluation of the impact caused by increasing the severity of key operation variables on deactivation of hydrotreating (HDT) catalysts, through accelerated runs performed in short periods of time. One of the main aspects of this work is the use of a kinetic approach in order to observe the impact of accelerated deactivation conditions upon catalyst performances during hydrodesulfurization (HDS), hydrodenitrogenation (HDN), and aromatic hydrogenation (HDA) reactions. This approach allows for evaluation of catalyst deactivation for each of the analyzed reactions. Results obtained with a reference catalyst indicate that the proposed methodology is able to deactivate the catalyst effectively, leading to proper representation of actual industrial deactivation at the end of a catalyst life cycle. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24158894 [article] Accelerated deactivation of hydrotreating catalysts by coke deposition [texte imprimé] / Marcelo Edral Pacheco, Auteur ; Vera Maria Martins Salim, Auteur ; Jose Carlos Pinto, Auteur . - 2011 . - pp. 5975-5981. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 10 (Mai 2011) . - pp. 5975-5981 Mots-clés : Coke  deposition  Catalyst  Hydrotreating  Deactivation Résumé : Pilot plant experiments are designed to allow for evaluation of the impact caused by increasing the severity of key operation variables on deactivation of hydrotreating (HDT) catalysts, through accelerated runs performed in short periods of time. One of the main aspects of this work is the use of a kinetic approach in order to observe the impact of accelerated deactivation conditions upon catalyst performances during hydrodesulfurization (HDS), hydrodenitrogenation (HDN), and aromatic hydrogenation (HDA) reactions. This approach allows for evaluation of catalyst deactivation for each of the analyzed reactions. Results obtained with a reference catalyst indicate that the proposed methodology is able to deactivate the catalyst effectively, leading to proper representation of actual industrial deactivation at the end of a catalyst life cycle. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24158894