Documents disponibles écrits par cet auteur

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

Mass transfer and solubility of CO and H2 in ionic liquid. Case of [Bmim][PF6] with gas-inducing stirrer reactor / Amit Sharma in Industrial & engineering chemistry research, Vol. 48 N° 8 (Avril 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4075–4082 Titre : Mass transfer and solubility of CO and H2 in ionic liquid. Case of [Bmim][PF6] with gas-inducing stirrer reactor Type de document : texte imprimé Auteurs : Amit Sharma, Auteur ; Carine Julcour, Auteur ; Ashutosh A. Kelkar, Auteur Année de publication : 2009 Article en page(s) : pp. 4075–4082 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Ionic  liquids  Solubility  Gas−liquid  mass  transfer  Carbon  monoxide  Hydrogen Résumé : Since the past decade, ionic liquids have gained significant importance as alternative solvents for catalysis applications. Many of the reactions evaluated in ionic liquids employ gases as substrates, and therefore it is important to know their solubility and mass transfer characteristics. This work reports for the first time both the solubility and volumetric gas−liquid mass transfer coefficient kLa for hydrogen and carbon monoxide in 1-n-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) at three temperatures (293, 323, and 373 K) in relevance to hydroformylation reaction. The experimental data on the volumetric gas−liquid mass transfer coefficient are described by a dimensionless correlation for the bench-scale stirred tanks with gas-inducing impeller. kLa values have also been evaluated for different [Bmim][PF6]−decane emulsions at 373 K. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801584p [article] Mass transfer and solubility of CO and H2 in ionic liquid. Case of [Bmim][PF6] with gas-inducing stirrer reactor [texte imprimé] / Amit Sharma, Auteur ; Carine Julcour, Auteur ; Ashutosh A. Kelkar, Auteur . - 2009 . - pp. 4075–4082. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4075–4082 Mots-clés : Ionic  liquids  Solubility  Gas−liquid  mass  transfer  Carbon  monoxide  Hydrogen Résumé : Since the past decade, ionic liquids have gained significant importance as alternative solvents for catalysis applications. Many of the reactions evaluated in ionic liquids employ gases as substrates, and therefore it is important to know their solubility and mass transfer characteristics. This work reports for the first time both the solubility and volumetric gas−liquid mass transfer coefficient kLa for hydrogen and carbon monoxide in 1-n-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) at three temperatures (293, 323, and 373 K) in relevance to hydroformylation reaction. The experimental data on the volumetric gas−liquid mass transfer coefficient are described by a dimensionless correlation for the bench-scale stirred tanks with gas-inducing impeller. kLa values have also been evaluated for different [Bmim][PF6]−decane emulsions at 373 K. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801584p