Effect of ammonia on the absorption kinetics of carbon dioxide into aqueous 2-amino-2-methyl-1-propanol solutions / Won-Joon Choi in Industrial & engineering chemistry research, Vol. 48 N° 8 (Avril 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4022–4029 Titre : Effect of ammonia on the absorption kinetics of carbon dioxide into aqueous 2-amino-2-methyl-1-propanol solutions Type de document : texte imprimé Auteurs : Won-Joon Choi, Auteur ; Byoung-Moo Min, Auteur ; Jong-Beom Seo, Auteur Année de publication : 2009 Article en page(s) : pp. 4022–4029 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Aqueous 2-amino-2-methyl-1-propanol Carbon dioxide Absorption rates Stirred-cell reactor Résumé : Reaction rate constants of aqueous 2-amino-2-methyl-1-propanol (AMP)/ammonia (NH3) solutions with carbon dioxide (CO2) were determined by measuring their absorption rates. The CO2 absorption characteristics of an NH3 solution added to AMP were investigated using a stirred-cell reactor. The CO2 absorption rates into aqueous blended amine solutions were measured at different pressures (pA = 5, 10, and 15 kPa) and temperatures (293, 303, 313, and 323 K). Additive concentrations of 1, 3, and 5 wt % NH3 were added for each 30 wt % AMP solution. The results showed that the addition of NH3 to AMP significantly increased the CO2 absorption rates of AMP by 144%. In addition, the reaction rate constant for a blend of AMP and NH3 with CO2 as a function of temperature was 1.6- to 2.4-fold higher than that of AMP without NH3. The reaction rate constants were k2,AMP = 1.543 × 107 exp(−3019.92/T) and k2,NH3 = 1.847 × 1010 exp(−4954.25/T). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8018438 [article] Effect of ammonia on the absorption kinetics of carbon dioxide into aqueous 2-amino-2-methyl-1-propanol solutions [texte imprimé] / Won-Joon Choi, Auteur ; Byoung-Moo Min, Auteur ; Jong-Beom Seo, Auteur . - 2009 . - pp. 4022–4029. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4022–4029 Mots-clés : Aqueous 2-amino-2-methyl-1-propanol Carbon dioxide Absorption rates Stirred-cell reactor Résumé : Reaction rate constants of aqueous 2-amino-2-methyl-1-propanol (AMP)/ammonia (NH3) solutions with carbon dioxide (CO2) were determined by measuring their absorption rates. The CO2 absorption characteristics of an NH3 solution added to AMP were investigated using a stirred-cell reactor. The CO2 absorption rates into aqueous blended amine solutions were measured at different pressures (pA = 5, 10, and 15 kPa) and temperatures (293, 303, 313, and 323 K). Additive concentrations of 1, 3, and 5 wt % NH3 were added for each 30 wt % AMP solution. The results showed that the addition of NH3 to AMP significantly increased the CO2 absorption rates of AMP by 144%. In addition, the reaction rate constant for a blend of AMP and NH3 with CO2 as a function of temperature was 1.6- to 2.4-fold higher than that of AMP without NH3. The reaction rate constants were k2,AMP = 1.543 × 107 exp(−3019.92/T) and k2,NH3 = 1.847 × 1010 exp(−4954.25/T). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8018438

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