Solubility of CO2 in 2-Amino-2-methyl-1-propanol (AMP) and 3-(Methylamino)propylamine (MAPA): Experimental Investigation and Modeling with the Cubic-Plus-Association and the Modified Kent-Eisenberg Models

CO2 capture attracts significant research efforts in order to reduce the volume of greenhouse gases emitted from fossil fuels combustion. Among studied processes, chemical absorption represents a mature approach and, this direction, new solvents, alternatives monoethanolamine (MEA), have been suggested. In work, solubility aqueous solutions 2-amino-2-methyl-1-propanol (AMP) and 3-(methylamino)propylamine (MAPA), which were recently suggested as constituents novel phase change solvent mixtures, is experimentally measured at 298, 313, 323, 333 K wide range pressures, up approximately 7 bar. As available literature experimental data for MAPA are very limited, results study compared respective AMP, satisfactory agreement was observed. The correlated with cubic-plus-association (CPA) modified Kent-Eisenberg models. It observed that both models rather satisfactorily correlate data, model presenting more accurate correlations.