Intensification of SO2 recovery with ionic liquids

Luis Alconero, Patricia;Garea, A.;Irabien, A.
(2009) 8th World Congress of Chemical Engineering — Location: Montreal, Quebec, Canada (23.August.2019)

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Abstract Selective absorption into a liquid is a widespread method to separate and concentrate SO2 from gas emissions, reducing air pollution and environmental risks. Process intensification was carried out using a ceramic membrane contactor as equipment and using an ionic liquid as the absorption liquid. The membrane served as a barrier, thus, there was no direct contact between gas and liquid phases and the mass transfer occurred through the membrane. To minimize solvent losses caused by volatilization of the liquid, the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate was used as the absorption solvent and the results were compared to the N,N-dimethylaniline results. The influence of CO2 in the absorption was evaluated and the overall mass transfer coefficients were calculated.
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Luis Alconero, P., Garea, A., & Irabien, A. (2009). Intensification of SO2 recovery with ionic liquids. Proceedings of the 8th World Congress of Chemical Engineering. Published. 8th World Congress of Chemical Engineering, Montreal, Quebec, Canada. https://hdl.handle.net/2078.5/229923