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CO2 absorption characteristics in aqueous K2CO3/Piperazine solution by NMR spectroscopy / Young Eun Kim in Industrial & engineering chemistry research, Vol. 50 N° 15 (Août 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 9306-9313 Titre : CO2 absorption characteristics in aqueous K2CO3/Piperazine solution by NMR spectroscopy Type de document : texte imprimé Auteurs : Young Eun Kim, Auteur ; Jeong Ho Choi, Auteur ; Sung Chan Nam, Auteur Année de publication : 2011 Article en page(s) : pp. 9306-9313 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : NMR  spectrometry  Gas  absorption  Carbon  dioxide Résumé : This research studied the absorption of CO2 into the aqueous solution of piperazine (PZ) and K2CO3/PZ in the vapor-liquid equilibrium (VLE) apparatus at 313, 333, and 353 K. NMR spectroscopy was used to identify the species distribution in PZ-H2O-CO2 and K2CO3-PZ-H2O-CO2 systems. The study of species distribution is important for designing new absorbents and absorption processes for CO2 capture. The CO2 loaded solutions of PZ 7.5 wt % and K2CO3 15 wt %/PZ 7.5 wt % were prepared by VLE apparatus at 333 K. 1H NMR and 13C NMR spectra were obtained for these systems at 293 K. This study shows that it is possible to use this method to confirm the reaction mechanism of aqueous PZ and K2CO3/PZ solutions with CO2. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24395875 [article] CO2 absorption characteristics in aqueous K2CO3/Piperazine solution by NMR spectroscopy [texte imprimé] / Young Eun Kim, Auteur ; Jeong Ho Choi, Auteur ; Sung Chan Nam, Auteur . - 2011 . - pp. 9306-9313. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 9306-9313 Mots-clés : NMR  spectrometry  Gas  absorption  Carbon  dioxide Résumé : This research studied the absorption of CO2 into the aqueous solution of piperazine (PZ) and K2CO3/PZ in the vapor-liquid equilibrium (VLE) apparatus at 313, 333, and 353 K. NMR spectroscopy was used to identify the species distribution in PZ-H2O-CO2 and K2CO3-PZ-H2O-CO2 systems. The study of species distribution is important for designing new absorbents and absorption processes for CO2 capture. The CO2 loaded solutions of PZ 7.5 wt % and K2CO3 15 wt %/PZ 7.5 wt % were prepared by VLE apparatus at 333 K. 1H NMR and 13C NMR spectra were obtained for these systems at 293 K. This study shows that it is possible to use this method to confirm the reaction mechanism of aqueous PZ and K2CO3/PZ solutions with CO2. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24395875