The influence of the CO2 liquid loading on the rate of the reverse reaction is only 1% at the maximum as checked by Cornelisse et al. [10].
In this work, about 3 5 kPa CO2 (1.4 L) was used for the absorption measurement in 0.5 L MEA solution.
To check the influence of gas phase resistance on the measurement of chemical absorption, the reaction rate constants of MEA+CO2 were measured under different inert gas pressures at 303.15 K.
The experimental concentrations of MEA were 1 and 3 M with H2O as a solvent and 3 M with ethyleneglycol as a solvent, respectively.
The gas and liquid stirrer speed was 1 rps.