Enrichment in CO Absorption by 2-Methyl Piperazine-Activated Tertiary Amines, Physical Solvents, and Ionic Liquid Systems.

One of the ever-demanding research fields is the development of new solvents with better properties for mitigation of CO compared to existing solvents. This work reports the measurement and modeling of CO solubility in newly proposed aqueous solvent blends of 2-methyl piperazine with -methyldiethanolamine (MDEA), sulfolane (TMSO), and 1-butyl-3-methyl-imidazolium acetate ([bmim] [Ac]). The operating temperature and CO partial pressure conditions chosen were 303.