Hydrodynamic and absorption studies of carbon dioxide absorption in aqueous amide solutions using a bubble column contactor

Brazilian Journal of Chemical Engineering

A. Blanco¹  A. García-abuín¹  D. Gómez-díaz¹  J. M. Navaza¹ 

[1] ,University of Santiago de Compostela ETSE Department of Chemical EngineeringGalicia,Spain

关键词: Absorption;    Alkyl-pyrrolidone;    Bubble column;    Interfacial area;    Mass transfer coefficient;   

DOI  :  10.1590/S0104-66322013000400012

来源: SciELO

【 摘 要 】

The present work analyses the carbon dioxide absorption process in aqueous n-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 problems.

【 授权许可】

CC BY   
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