Documents disponibles écrits par cet auteur

Catalytic wet air oxidation of phenolic compounds and mixtures over activated carbon / Catherine Ayral in Industrial & engineering chemistry research, Vol. 49 N° 21 (Novembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 10707-10714 Titre : Catalytic wet air oxidation of phenolic compounds and mixtures over activated carbon : Conversion, mineralization, and catalyst stability Type de document : texte imprimé Auteurs : Catherine Ayral, Auteur ; Carine Julcour Lebigue, Auteur ; Frank Stuber, Auteur Année de publication : 2011 Article en page(s) : pp. 10707-10714 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Stability  Catalyst  Mineralization  Activated  carbon  Oxidation  Wet  air  Catalytic  reaction Résumé : Catalytic wet air oxidation (CWAO) of phenolic compounds over three activated carbons (ACs) has been investigated in a semibatch autoclave to better understand the influence of AC properties on the efficiency and stability of CWAO. Phenol, 4-nitrophenol, 4-chlorophenol, and 4-hydroxybenzoic acid, as well as synthetic mixtures comprising two to four of the aforementioned molecules, have been chosen as model pollutants to evaluate synergy or competition effects. To this end, the amount of pollutant(s) (re)adsorbed on AC during a preliminary adsorption step, the pollutant conversion, and the mineralization yield obtained during CWAO as well as the AC stability upon recycling are compared for each case. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23447964 [article] Catalytic wet air oxidation of phenolic compounds and mixtures over activated carbon : Conversion, mineralization, and catalyst stability [texte imprimé] / Catherine Ayral, Auteur ; Carine Julcour Lebigue, Auteur ; Frank Stuber, Auteur . - 2011 . - pp. 10707-10714. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 10707-10714 Mots-clés : Stability  Catalyst  Mineralization  Activated  carbon  Oxidation  Wet  air  Catalytic  reaction Résumé : Catalytic wet air oxidation (CWAO) of phenolic compounds over three activated carbons (ACs) has been investigated in a semibatch autoclave to better understand the influence of AC properties on the efficiency and stability of CWAO. Phenol, 4-nitrophenol, 4-chlorophenol, and 4-hydroxybenzoic acid, as well as synthetic mixtures comprising two to four of the aforementioned molecules, have been chosen as model pollutants to evaluate synergy or competition effects. To this end, the amount of pollutant(s) (re)adsorbed on AC during a preliminary adsorption step, the pollutant conversion, and the mineralization yield obtained during CWAO as well as the AC stability upon recycling are compared for each case. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23447964

Hydroformylation of 1 - octene using [Bmim] [PF6] — decane biphasic media and rhodium complex catalyst / Amit Sharma in Industrial & engineering chemistry research, Vol. 49 N° 21 (Novembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 10698-10706 Titre : Hydroformylation of 1 - octene using [Bmim] [PF6] — decane biphasic media and rhodium complex catalyst : Thermodynamic properties and kinetic study Type de document : texte imprimé Auteurs : Amit Sharma, Auteur ; Carine Julcour Lebigue, Auteur ; Raj M. Deshpande, Auteur Année de publication : 2011 Article en page(s) : pp. 10698-10706 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Kinetics  Thermodynamic  properties  Catalyst Résumé : A chemical reaction engineering approach is reported to investigate the biphasic hydroformylation of 1-octene using [bmim][PF6] ionic liquid. It is based both on a process parameter investigation (temperature, concentrations, and pressures) and a thermodynamic study of the reaction medium (gas-liquid and liquid—liquid equilibria). Initial rate data show complex behavior with respect to operating parameters and are best described by a rate equation based on a mechanistic model. Complete reaction scheme including isomerization is then modeled accounting from the time dependent concentration of the organic substrates measured in organic phase and recalculated in ionic liquid phase from liquid-liquid equilibria. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23447963 [article] Hydroformylation of 1 - octene using [Bmim] [PF6] — decane biphasic media and rhodium complex catalyst : Thermodynamic properties and kinetic study [texte imprimé] / Amit Sharma, Auteur ; Carine Julcour Lebigue, Auteur ; Raj M. Deshpande, Auteur . - 2011 . - pp. 10698-10706. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 21 (Novembre 2010) . - pp. 10698-10706 Mots-clés : Kinetics  Thermodynamic  properties  Catalyst Résumé : A chemical reaction engineering approach is reported to investigate the biphasic hydroformylation of 1-octene using [bmim][PF6] ionic liquid. It is based both on a process parameter investigation (temperature, concentrations, and pressures) and a thermodynamic study of the reaction medium (gas-liquid and liquid—liquid equilibria). Initial rate data show complex behavior with respect to operating parameters and are best described by a rate equation based on a mechanistic model. Complete reaction scheme including isomerization is then modeled accounting from the time dependent concentration of the organic substrates measured in organic phase and recalculated in ionic liquid phase from liquid-liquid equilibria. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23447963