In this work, the kinetics for the reaction of CO2 with three chemical solvents were studied experimentally and theoretically. The CO2 absorption flux into the potassium lysinate (K-Lys), methyldiethanolamine (MDEA), and their blends was measured over the CO2 partial pressure range of 50–500 kPa, and at temperatures 298.15, 303.15, and 313.15 K using a stirred cell reactor. The effect of the addition of K-Lys on the absorption flux of CO2 into MDEA solution at low and high pressure was investigated. The reaction kinetics of CO2 absorption in CO2-loaded MDEA, K-Lys, and MDEA + K-Lys solutions were also examined and absorption flux of CO2 as a function of CO2 loading was determined. The values of CO2 diffusivity, viscosity, the liquid mass transfer coefficient, the overall reaction rate constant, and the physical solubility of CO2 into MDEA + K-Lys solution were reported. Furthermore, a standard kinetics model was developed to describe the CO2 absorption behavior in the solution at low and high pressures, for both unloaded and CO2-loaded systems.
|Titolo:||Kinetics study of CO2 absorption into methyldiethanolamine, potassium lysinate, and their blends in aqueous solution|
|Data di pubblicazione:||2022|
|Appare nelle tipologie:||01.01 - Articolo su rivista|
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|Int J of Chemical Kinetics - 2022 - Ramezani - Kinetics study of CO2 absorption into methyldiethanolamine potassium (1).pdf||Documento in versione editoriale||Administrator Richiedi una copia|