Kinetics region and model for mass transfer in carbon dioxide absorption into aqueous solution of 2-amino-2-methyl-1-propanol

Abstract

A rigorous model for absorption of CO 2 into aqueous 2-amino-2-methyl-1-propanol (AMP) was investigated at a temperature of 303 K using a double stirred-cell absorber with a planar gas–liquid interface. It was demonstrated that the kinetics region of absorption CO 2 into aqueous AMP was the fast pseudo-first order reaction regime. The mass transfer-reaction kinetics equilibrium model according to the film theory is satisfactory to represent CO 2 absorption into aqueous AMP. The model predictions had been found to be in good agreement with the experimental results. And the proposed model could handle the prediction much more effectively when CO 2 loading was much smaller.