Les Inscriptions à la Bibliothèque sont ouvertes en
ligne via le site: https://biblio.enp.edu.dz
Les Réinscriptions se font à :
• La Bibliothèque Annexe pour les étudiants en
2ème Année CPST
• La Bibliothèque Centrale pour les étudiants en Spécialités
A partir de cette page vous pouvez :
Retourner au premier écran avec les recherches... |
Détail de l'auteur
Auteur Yaoyan Xi
Documents disponibles écrits par cet auteur
Affiner la rechercheCharacterizing lactic acid hydrogenolysis rates in laboratory trickle bed reactors / Yaoyan Xi in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011)
[article]
in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5440-5447
Titre : Characterizing lactic acid hydrogenolysis rates in laboratory trickle bed reactors Type de document : texte imprimé Auteurs : Yaoyan Xi, Auteur ; James E. Jackson, Auteur ; Dennis J. Miller, Auteur Année de publication : 2011 Article en page(s) : pp. 5440-5447 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Trickle bed reactor Hydrogenolysis Résumé : Representative reaction kinetics are difficult to obtain in mutiphase laboratory trickle bed reactors, particularly when the gaseous reactant is rate-limiting, because of mass transport resistances and reactor hydrodynamics in the trickle bed regime. The ruthenium-catalyzed hydrogenolysis of lactic acid to propylene glycol has been examined in trickle bed and batch reactors to better understand the influence of mass transfer and partial wetting and to identify operating conditions where intrinsic kinetic rates can be obtained. At high liquid flow rates and low conversions in the trickle bed reactor, propylene glycol formation rates agree well with intrinsic rates obtained in a stirred batch reactor, with rate independent of feed flow rate or bed configuration in the trickle bed reactor. Application of a mass transport model to the trickle bed reactor at lower flow rates allows rates to be predicted outside the intrinsic kinetic regime. These results provide guidance for proper operation oflaboratory trickle bed reactors and make it possible to predict performance in a trickle-bed reactor based on experiments conducted in bench-scale batch reactors. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128666 [article] Characterizing lactic acid hydrogenolysis rates in laboratory trickle bed reactors [texte imprimé] / Yaoyan Xi, Auteur ; James E. Jackson, Auteur ; Dennis J. Miller, Auteur . - 2011 . - pp. 5440-5447.
Chimie industrielle
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5440-5447
Mots-clés : Trickle bed reactor Hydrogenolysis Résumé : Representative reaction kinetics are difficult to obtain in mutiphase laboratory trickle bed reactors, particularly when the gaseous reactant is rate-limiting, because of mass transport resistances and reactor hydrodynamics in the trickle bed regime. The ruthenium-catalyzed hydrogenolysis of lactic acid to propylene glycol has been examined in trickle bed and batch reactors to better understand the influence of mass transfer and partial wetting and to identify operating conditions where intrinsic kinetic rates can be obtained. At high liquid flow rates and low conversions in the trickle bed reactor, propylene glycol formation rates agree well with intrinsic rates obtained in a stirred batch reactor, with rate independent of feed flow rate or bed configuration in the trickle bed reactor. Application of a mass transport model to the trickle bed reactor at lower flow rates allows rates to be predicted outside the intrinsic kinetic regime. These results provide guidance for proper operation oflaboratory trickle bed reactors and make it possible to predict performance in a trickle-bed reactor based on experiments conducted in bench-scale batch reactors. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128666