Documents disponibles écrits par cet auteur

Carbon filter process for flue-gas carbon capture on carbonaceous sorbents / Bryce Dutcher in Industrial & engineering chemistry research, Vol. 50 N° 16 (Août 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 16 (Août 2011) . - pp. 9696-9703 Titre : Carbon filter process for flue-gas carbon capture on carbonaceous sorbents : steam-aided vacuum swing adsorption option Type de document : texte imprimé Auteurs : Bryce Dutcher, Auteur ; Hertanto Adidharma, Auteur ; Maciej Radosz, Auteur Année de publication : 2011 Article en page(s) : pp. 9696-9703 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Vacuum  swing  adsorption  Water  vapor  Gaseous  effluent Résumé : A low-pressure carbon filter process can capture carbon dioxide from combustion flue gas. This filter is filled with a carbonaceous sorbent, such as activated carbon, which has a high chemical affinity to and hence high capacity to retain CO2 but not nitrogen. This in turn leads to a high CO2/N2 selectivity, especially at low pressures. While CO2 sorption is spontaneous and rapid, its recovery from the sorbent is a challenge that determines the process efficiency. Among the desorption methods considered in this work, direct steam can produce nearly pure CO2, but it results in condensed water in the bed that reduces the sorbent capacity and requires sorbent cooling, which is slow. Vacuum desorption in the absence of water also works, but it requires low pressures, much lower than 30 Torr, to achieve substantial CO2 yields. However, a hybrid approach, referred to as "steam-aided vacuum swing adsorption" (SA-VSA), proposed in this work, is found to alleviate or eliminate these problems. Water vapor serves as a displacement medium and hence increases the vacuum efficiency at moderate pressures. Vacuum, on the other hand, prevents bulk water condensation and sorbent heating, and hence eliminates the need for cooling. As a result, SA-VSA can completely recover nearly pure CO2 from combustion flue gas, but it also allows for optimizing the CO2 recovery and purity. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24425213 [article] Carbon filter process for flue-gas carbon capture on carbonaceous sorbents : steam-aided vacuum swing adsorption option [texte imprimé] / Bryce Dutcher, Auteur ; Hertanto Adidharma, Auteur ; Maciej Radosz, Auteur . - 2011 . - pp. 9696-9703. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 16 (Août 2011) . - pp. 9696-9703 Mots-clés : Vacuum  swing  adsorption  Water  vapor  Gaseous  effluent Résumé : A low-pressure carbon filter process can capture carbon dioxide from combustion flue gas. This filter is filled with a carbonaceous sorbent, such as activated carbon, which has a high chemical affinity to and hence high capacity to retain CO2 but not nitrogen. This in turn leads to a high CO2/N2 selectivity, especially at low pressures. While CO2 sorption is spontaneous and rapid, its recovery from the sorbent is a challenge that determines the process efficiency. Among the desorption methods considered in this work, direct steam can produce nearly pure CO2, but it results in condensed water in the bed that reduces the sorbent capacity and requires sorbent cooling, which is slow. Vacuum desorption in the absence of water also works, but it requires low pressures, much lower than 30 Torr, to achieve substantial CO2 yields. However, a hybrid approach, referred to as "steam-aided vacuum swing adsorption" (SA-VSA), proposed in this work, is found to alleviate or eliminate these problems. Water vapor serves as a displacement medium and hence increases the vacuum efficiency at moderate pressures. Vacuum, on the other hand, prevents bulk water condensation and sorbent heating, and hence eliminates the need for cooling. As a result, SA-VSA can completely recover nearly pure CO2 from combustion flue gas, but it also allows for optimizing the CO2 recovery and purity. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24425213

Hydrate equilibrium modeling for pure alkanes and mixtures of alkanes using statistical associating fluid theory / Hao Jiang in Industrial & engineering chemistry research, Vol. 50 N° 22 (Novembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 22 (Novembre 2011) . - pp. 12815-12823 Titre : Hydrate equilibrium modeling for pure alkanes and mixtures of alkanes using statistical associating fluid theory Type de document : texte imprimé Auteurs : Hao Jiang, Auteur ; Hertanto Adidharma, Auteur Année de publication : 2012 Article en page(s) : pp. 12815-12823 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Modeling Résumé : A recent version of Statistical Associating Fluid Theory, namely SAFT2, coupled with the van der Waals and Platteeuw model for the hydrate phase, is applied to represent the hydrate dissociation conditions for pure alkanes and their mixtures in systems without inhibitors. The proposed model is applied to both structure I and II hydrates at temperatures above and below the freezing point of water. For binary and ternary alkane mixtures, a correction factor with only one parameter is introduced to the model. The results indicate that, for these uninhibited systems, the proposed model predicts the hydrate dissociation conditions well and captures the effect of concentration on the dissociation pressure well. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24745757 [article] Hydrate equilibrium modeling for pure alkanes and mixtures of alkanes using statistical associating fluid theory [texte imprimé] / Hao Jiang, Auteur ; Hertanto Adidharma, Auteur . - 2012 . - pp. 12815-12823. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 22 (Novembre 2011) . - pp. 12815-12823 Mots-clés : Modeling Résumé : A recent version of Statistical Associating Fluid Theory, namely SAFT2, coupled with the van der Waals and Platteeuw model for the hydrate phase, is applied to represent the hydrate dissociation conditions for pure alkanes and their mixtures in systems without inhibitors. The proposed model is applied to both structure I and II hydrates at temperatures above and below the freezing point of water. For binary and ternary alkane mixtures, a correction factor with only one parameter is introduced to the model. The results indicate that, for these uninhibited systems, the proposed model predicts the hydrate dissociation conditions well and captures the effect of concentration on the dissociation pressure well. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24745757

Modeling of hydrate dissociation conditions for alkanes in the presence of single and mixed electrolyte solutions using ion - based statistical associating fluid theory / Hao Jiang in Industrial & engineering chemistry research, Vol. 51 N° 16 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 16 (Avril 2012) . - pp. 5818–5825 Titre : Modeling of hydrate dissociation conditions for alkanes in the presence of single and mixed electrolyte solutions using ion - based statistical associating fluid theory Type de document : texte imprimé Auteurs : Hao Jiang, Auteur ; Hertanto Adidharma, Auteur Année de publication : 2012 Article en page(s) : pp. 5818–5825 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Electrolyte  Fluid  theory Résumé : Ion-based statistical associating fluid theory (SAFT2), coupled with the van der Waals and Platteeuw model for hydrate phase, is applied to describe the hydrate dissociation conditions for methane, ethane, and propane in the presence of single and mixed electrolyte solutions containing NaCl, KCl, and CaCl2. The model, which can be conveniently applied to mixed electrolyte solutions, is found to provide accurate predictions of the hydrate inhibition effects of these electrolyte solutions. The effect of different salt concentrations on the alkane hydrate dissociation conditions is also well-captured. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300170w [article] Modeling of hydrate dissociation conditions for alkanes in the presence of single and mixed electrolyte solutions using ion - based statistical associating fluid theory [texte imprimé] / Hao Jiang, Auteur ; Hertanto Adidharma, Auteur . - 2012 . - pp. 5818–5825. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 16 (Avril 2012) . - pp. 5818–5825 Mots-clés : Electrolyte  Fluid  theory Résumé : Ion-based statistical associating fluid theory (SAFT2), coupled with the van der Waals and Platteeuw model for hydrate phase, is applied to describe the hydrate dissociation conditions for methane, ethane, and propane in the presence of single and mixed electrolyte solutions containing NaCl, KCl, and CaCl2. The model, which can be conveniently applied to mixed electrolyte solutions, is found to provide accurate predictions of the hydrate inhibition effects of these electrolyte solutions. The effect of different salt concentrations on the alkane hydrate dissociation conditions is also well-captured. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300170w

Recent advances and applications of statistical associating fluid theory / Sugata p. Tan in Industrial & engineering chemistry research, Vol. 47 n°21 (Novembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°21 (Novembre 2008) . - p. 8063–8082 Titre : Recent advances and applications of statistical associating fluid theory Type de document : texte imprimé Auteurs : Sugata p. Tan, Auteur ; Hertanto Adidharma, Auteur ; Maciej Radosz, Auteur Année de publication : 2008 Article en page(s) : p. 8063–8082 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Statistical  associating  ThermodynamicIts  performance Résumé : This review presents recent advances and applications of statistical associating fluid theory (SAFT), which has been extended in the past few years, conceptually and practically, to improve its performance and to represent thermodynamic properties of complex systems, such as associating polymers, polydispersed polymers, aqueous electrolytes, dipolar and quadrupolar systems, ionic liquids, near-critical systems, interfacial phenomena, crystallizable copolymers, gas hydrates, liquid crystals, biomaterials, and oil reservoir fluids, as well as dynamic properties such as viscosity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8008764 [article] Recent advances and applications of statistical associating fluid theory [texte imprimé] / Sugata p. Tan, Auteur ; Hertanto Adidharma, Auteur ; Maciej Radosz, Auteur . - 2008 . - p. 8063–8082. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°21 (Novembre 2008) . - p. 8063–8082 Mots-clés : Statistical  associating  ThermodynamicIts  performance Résumé : This review presents recent advances and applications of statistical associating fluid theory (SAFT), which has been extended in the past few years, conceptually and practically, to improve its performance and to represent thermodynamic properties of complex systems, such as associating polymers, polydispersed polymers, aqueous electrolytes, dipolar and quadrupolar systems, ionic liquids, near-critical systems, interfacial phenomena, crystallizable copolymers, gas hydrates, liquid crystals, biomaterials, and oil reservoir fluids, as well as dynamic properties such as viscosity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8008764