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.

COSMO-RS Analysis of CO Solubility in -Methyldiethanolamine, Sulfolane, and 1-Butyl-3-methyl-imidazolium Acetate Activated by 2-Methylpiperazine for Postcombustion Carbon Capture.

Novel aqueous (aq) blends of -methyldiethanolamine (MDEA), sulfolane (TMSO), and 1-butyl-3-methyl-imidazolium acetate ([bmim][Ac]) with amine activator 2-methylpiperazine (2-MPZ) are analyzed through conductor-like screening model for real solvents (COSMO-RS) for possible application in the chemisorption of CO. The molecules associated are analyzed for their ground-state energy, σ potential, and σ surface. Thermodynamic and physicochemical properties have been assessed and paralleled with the experimental data.

Thermally induced characterization and modeling of physicochemical, acoustic, rheological, and thermodynamic properties of novel blends of (HEF + AEP) and (HEF + AMP) for CO/HS absorption.

CO and HS removal from flue gases is indispensable to be done for protection of environment with respect to global warming as well as clean air. Chemical absorption is one of the most developed and capable techniques for the removal of these sour gases. Among the many solvents, ionic liquids (ILs) are more capable due to their desirable green solvent properties.