“…5, it is clear that above a certain CO 2 partial pressure, corresponding to a CO 2 loading of 0.5 mol of CO 2 /mol of amine, the CO 2 solubility in a 30 mass% aqueous MDEA is greater than that of DEA. As reported earlier by Li and Shen [24] for MEA + MDEA blend, Park et al [25] for MEA + AMP and DEA + AMP blends, Li and Chang [26] for MEA + AMP blend, Seo and Hong [27] and Kundu and Bandyopadhyay [23] for DEA + AMP blend, a similar crossover in the solubility curves occur in Figs. 4 and 5.…”