Based on the small reaction kettle experiment device

the data approximation could be adopt to establish the kinetics model by two-film theory. Then the reaction kinetics of amine solutions of MEA (monoethanolamine)

MDEA (methyldiethanolamine) and both mixtures were analyzed by the model. The reaction kinetics models of MEA and MDEA

which was established by pseudo-first-order reaction

could forecast gas-liquid mass transfer performance of them well after experimental verification. The result showed that the interaction coefficient and mass transfer rate of MEA was higher than that of MDEA. The mass transfer rates decreased with the process of reaction. In addition

the apparent propagation rate constant and enhancement factor of mixed amine increased with the increasing temperature and the ratio of MEA. At last

it forecasted that the mixed amine of MDEA+MEA (2 mol·L-1+1 mol·L-1) had the better decarbonization performance

which had higher mass transfer rate with its enhancement factor of 0.5.