| Titre : | Kinetics of the absorption of CO2 in aqueous solutions of N-methyldiethanolamine + triethylene tetramine (2009) |
| Auteurs : | Jean-Marc G. Amann, Auteur ; Chakib Bouallou, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 8, Avril 2009) |
| Article en page(s) : | pp. 3761–3770 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Solvent CO2 capture N-methyldiethanolamine Triethylene tetramine |
| Résumé : | This work focuses on the development of a new solvent for CO2 capture. This new solvent is an aqueous solution with a blend of N-methyldiethanolamine (MDEA) and triethylene tetramine (TETA), an amine with four amino groups. CO2 absorption was investigated between 298 and 333 K using a Lewis cell with a constant interfacial area. Several concentrations of MDEA (17.5 and 40 wt %) and TETA (3 and 6 wt %) were assessed. The influence of the CO2 partial pressure on the absorption rate was pointed out. The addition of small amount of TETA leads to a high increase in the CO2 absorption rates. A numerical model based on the film theory was used to determine the rate coefficients between CO2 and TETA for the different solvents. The physicochemical parameters have a huge influence on the determination of the rate coefficients. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie800414v |
