Blanco Seoane, AntonioGarcía Abuín, AliciaGómez Díaz, DiegoNavaza Dafonte, José Manuel2020-04-142020-04-142013A. Blanco, A. García-Abuín, D. Gómez-Díaz, J. M. Navaza. (2013). Hydrodynamic and absorption studies of carbon dioxide absorption in aqueous amide solutions using a bubble column contactor. "Brazilian Journal of Chemical Engineering", vol. 30, n.4, 801-8090104-6632http://hdl.handle.net/10347/21405The present work analyses the carbon dioxide absorption process in aqueou alkylpyrrolidones solutions, from the point of view of hydrodynamic studies as well as mass transfer, using a bubble column contactor. An analysis of the influence of solute concentration and gas flow-rate is complemented by the study of the effect caused by the alkyl group on the hydrodynamics and mass transfer. The presence of this kind of substance produces a decrease in mass transfer rate, but on the basis of interfacial area and mass transfer coefficient values, ethyl-2-pyrrolidine (EP) shows suitable characteristics to replace methyl-2- pyrrolidine (MP) in gas separation processes due to its lower safety problemsengThis work is licensed under a Creative Commons Attribution-NonCommercial Licensehttps://creativecommons.org/licenses/by-nc/4.0/AbsorptionAlkyl-pyrrolidoneBubble columnInterfacial areaMass transfer coefficientjournal article10.1590/S0104-663220130004000121678-4383open access