Reaction rate of CO2 in aqueous MEA-AMP solution: Experiment and modeling

Gas absorption using amines is the most well-established CO2 capture technology available today. Monoethanolamine (MEA) is the commonly used amine while 2-amino-2-methyl-1-propanol (AMP), has gained its popularity since it offers a higher absorption capacity and a lower regeneration energy. Blending MEA with AMP is predicted to combine all favorable characteristics of both amines and overcome the unfavorable characteristics. This work reports kinetic rates of MEA-AMP under a wide range of process parameters. The rates were measured in a wetted wall column made from stainless steel tubing fitted inside a glass chamber, and were interpreted in terms of overall rate constant.