Intensified biogas purification in a stirred tank

Abstract : The present study aims at intensifying the absorption of carbon dioxide in aqueous phases. For this purpose, a second immiscible liquid phase is used to improve the mass transfer of carbon dioxide in water. Absorption measurements are carried out in a stirred cell by online infrared monitoring of the output carbon dioxide concentration. As dispersed phase, 1-octanol shows an improvement in mass transfer whereas colza oil retards it. Toluene has no significant effect in the range of concentrations investigated. Mass transfer coefficients are determined using a chemical method. Nevertheless, the variety of behaviors could not be explained simply by solubility or variation of mass transfer coefficients. In order to understand the complex gas-liquid-liquid interactions and deduce the mass transfer mechanism between these three phases, surface and interface tension measurements and direct observation of bubbles and droplets are also carried out.
Type de document :
Article dans une revue
Chemical Engineering and Processing: Process Intensification, Elsevier, 2014, 86 (SI), pp.1-8. 〈10.1016/j.cep.2014.10.004〉
Domaine :
Liste complète des métadonnées

https://hal.univ-lorraine.fr/hal-01274052
Contributeur : Lrgp Ul <>
Soumis le : lundi 15 février 2016 - 12:13:31
Dernière modification le : vendredi 15 juin 2018 - 11:22:01

Identifiants

Collections

Citation

Tarsida N. Wedraogo, Souhila Poncin, J. Wu, Huai Z. Li. Intensified biogas purification in a stirred tank. Chemical Engineering and Processing: Process Intensification, Elsevier, 2014, 86 (SI), pp.1-8. 〈10.1016/j.cep.2014.10.004〉. 〈hal-01274052〉

Partager

Métriques

Consultations de la notice

59