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

• Autorzy: Kierzkowska-Pawlak H.
• Języki publikacji: EN

Abstrakty

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.

Słowa kluczowe

EN

CO2 separation; bubbling desorption; supersaturation ratio

PL

oddzielanie CO2; separacja CO2; desorpcja pęcherzy gazowych; przesycenie

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2007
• Tom: Vol. 9, nr 2
• Strony: 106--109
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Kierzkowska-Pawlak H.

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

Bibliografia

• 1. Kohl A., Nielsen R.: Gas Purification, 5th ed.; Gulf Publishing Co.: Houston, TX, 1997.
• 2. Lubetkin S. D.: Why Is It Much Easier To Nucleate Gas Bubbles than Theory Predicts?, Langmuir, 2003, 19, 2575.
• 3. 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.
• 4. Hikita H., Konishi Y.: Desorption of Carbon Dioxide from Supersaturated Water in an Agitated Vessel, AIChE J., 1984, 30 (6), 945.
• 5. Ullmann's Encyclopedia of Industrial Chemistry, 4th ed., Vol. 2, Verlag Chemie: Weinheim, 1984.