For 5.0, 20.5, 50.0, and 75.0 mass % methyldiethanolamine (MDEA)
aqueous solutions, solubilities of
CO2 were measured at 323.15, 348.15, and 373.15 K,
respectively. Isothermal absorption capacities of
CO2 as a function of MDEA concentration are presented.
Lastly, the absorption enthalpy of CO2 in
50.0
mass % MDEA solution was calculated to be 54
kJ·mol-1 CO2.
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