Investigation of mass transfer coefficient of CO2 absorption into amine solutions in hollow fiber membrane contactor

In this work, the CO2 absorption performance in aqueous amine solutions have been investigated in hollow fiber membrane contactor. The overall mass transfer coefficients (Kol) was evaluated at different operating conditions, including absorbent type, liquid velocity, gas velocity and concentration of amine. The experimental results reveal that the overall mass transfer coefficient increase with liquid velocity, gas velocity and concentration of amine increasing. DEEA, as a promising tertiary amine, has a higher Kol value compared to that of MDEA.