Documents disponibles écrits par cet auteur

Mixture absorption system of monoethanolamine — triethylene glycol for CO2 capture / Jing Tan in Industrial & engineering chemistry research, Vol. 50 N° 7 (Avril 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 7 (Avril 2011) . - pp. 3966-3976 Titre : Mixture absorption system of monoethanolamine — triethylene glycol for CO2 capture Type de document : texte imprimé Auteurs : Jing Tan, Auteur ; Huawei Shao, Auteur ; Jianhong Xu, Auteur Année de publication : 2011 Article en page(s) : pp. 3966-3976 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Carbon  dioxide Résumé : In this paper, a mixture system without water but composed of monoethanolamine (MEA) and triethylene glycol (TEG) is designed for CO2 capture. The solubility of CO2 in pure TEG and MEA-TEG solutions is determined, respectively, showing that the solubility of CO2 in TEG is generally consistent with Henry's Law and the value is higher than that in water. The solubility of CO2 in MEA―TEG solutions significantly increases with the increase of MEA, showing the characteristics of chemical reaction absorption. The absorption mechanism study shows that TEG does not act as a reaction agent. There is only one reaction between CO2 and MEA. The absence of water in the new system leads to the absence of dissociation of protonated MEA and formation of carbamate (MEACOO―). This is much different from the MEA―water system. A mathematical model is also developed for predicting the solubility of CO2 in the new system. The results show that the absorption and desorption can be realized at relatively lower temperatures (lower than 353.15 K), which may provide advancement in two aspects: low energy consumption with less solvent evaporation and avoidance of MEA's degradation caused by high-temperature operation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24027643 [article] Mixture absorption system of monoethanolamine — triethylene glycol for CO2 capture [texte imprimé] / Jing Tan, Auteur ; Huawei Shao, Auteur ; Jianhong Xu, Auteur . - 2011 . - pp. 3966-3976. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 7 (Avril 2011) . - pp. 3966-3976 Mots-clés : Carbon  dioxide Résumé : In this paper, a mixture system without water but composed of monoethanolamine (MEA) and triethylene glycol (TEG) is designed for CO2 capture. The solubility of CO2 in pure TEG and MEA-TEG solutions is determined, respectively, showing that the solubility of CO2 in TEG is generally consistent with Henry's Law and the value is higher than that in water. The solubility of CO2 in MEA―TEG solutions significantly increases with the increase of MEA, showing the characteristics of chemical reaction absorption. The absorption mechanism study shows that TEG does not act as a reaction agent. There is only one reaction between CO2 and MEA. The absence of water in the new system leads to the absence of dissociation of protonated MEA and formation of carbamate (MEACOO―). This is much different from the MEA―water system. A mathematical model is also developed for predicting the solubility of CO2 in the new system. The results show that the absorption and desorption can be realized at relatively lower temperatures (lower than 353.15 K), which may provide advancement in two aspects: low energy consumption with less solvent evaporation and avoidance of MEA's degradation caused by high-temperature operation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24027643

Rapid measurement of gas solubility in liquids using a membrane dispersion microcontactor / Jing Tan in Industrial & engineering chemistry research, Vol. 49 N° 20 (Octobre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 10040–10045 Titre : Rapid measurement of gas solubility in liquids using a membrane dispersion microcontactor Type de document : texte imprimé Auteurs : Jing Tan, Auteur ; Jianhong Xu, Auteur ; Kai Wang, Auteur Année de publication : 2011 Article en page(s) : pp. 10040–10045 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Dispersion  Solubility Résumé : In this study, we present a simple and fast method for the measurement of gas solubility in different liquids. Gas solubility measurements were carried out in a microcontactor using microdispersions to enhance mass transfer. The gas−liquid microcontactor, with a 5 μm pore size microfiltration membrane as the dispersion medium, was used to measure the gas solubility of six typical gas−liquid systems. The gas−liquid systems reached vapor−liquid equilibrium within 2 s, much less time than the 24 h required by the widely used static method of measurement. The obtained gas solubility data agree well with those obtained using the static method. The results produced using this measurement method were also highly reproducible, and relative measurement errors were less than 10% at the optimized operating conditions. The present method can potentially be very useful for the accurate and rapid measurement of gas solubility in many areas including gas−liquid reactions and solvent-based CO2 capture. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23325827 [article] Rapid measurement of gas solubility in liquids using a membrane dispersion microcontactor [texte imprimé] / Jing Tan, Auteur ; Jianhong Xu, Auteur ; Kai Wang, Auteur . - 2011 . - pp. 10040–10045. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 10040–10045 Mots-clés : Dispersion  Solubility Résumé : In this study, we present a simple and fast method for the measurement of gas solubility in different liquids. Gas solubility measurements were carried out in a microcontactor using microdispersions to enhance mass transfer. The gas−liquid microcontactor, with a 5 μm pore size microfiltration membrane as the dispersion medium, was used to measure the gas solubility of six typical gas−liquid systems. The gas−liquid systems reached vapor−liquid equilibrium within 2 s, much less time than the 24 h required by the widely used static method of measurement. The obtained gas solubility data agree well with those obtained using the static method. The results produced using this measurement method were also highly reproducible, and relative measurement errors were less than 10% at the optimized operating conditions. The present method can potentially be very useful for the accurate and rapid measurement of gas solubility in many areas including gas−liquid reactions and solvent-based CO2 capture. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23325827