Pressure swing absorption of carbon dioxide in n-methyl-2-pyrrolidone solutions

• Authors: Hanna Kierzkowska-Pawlak
• Languages of publication: EN

Abstracts

EN

The mass transfer rates during CO2 absorption and desorption from N-methyl-2-pyrrolidone solutions were measured at 293.15 K in a baffled agitated reactor with a flat gas-liquid interface. Based on the measured values of pressure changes, the desorption rate was determined and compared to the absorption rate at the same driving force. Two distinct mechanisms of desorption were observed. The transition from bubbling to the diffusive desorption is found to be a function of the supersaturation ratio, pressure and the stirring speed.

Keywords

EN

CO2 separation; bubbling desorption; supersaturation ratio

• Journal: Polish Journal of Chemical Technology
• Year: 2007
• Volume: 9
• Issue: 2
• Pages: 106-109

Dates

published

1 - 1 - 2007

online

19 - 10 - 2007

Contributors

author

Hanna Kierzkowska-Pawlak

• Faculty of Process and Environmental Engineering, Technical University of Lodz, ul. Wólczańska 213, 90-924 Łódź, Poland

References

• Kohl A., Nielsen R.: Gas Purification, 5th ed.; Gulf Publishing Co.: Houston, TX, 1997.
• Lubetkin S. D.: Why Is It Much Easier To Nucleate Gas Bubbles than Theory Predicts?, Langmuir, 2003, 19, 2575.[Crossref]
• Weiland R. H., Thuy L. T., Liveris A. N.: Transition from Bubbling to Quiescent Desorption of Dissolved Gases, Ind. Eng. Chem. Fund., 1977, 16 (3), 332.[Crossref]
• Hikita H., Konishi Y.: Desorption of Carbon Dioxide from Supersaturated Water in an Agitated Vessel, AIChE J., 1984, 30 (6), 945.[Crossref]
• Ullmann's Encyclopedia of Industrial Chemistry, 4th ed., Vol. 2, Verlag Chemie: Weinheim, 1984.

Identifiers

DOI

10.2478/v10026-007-0039-2