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NMR experiments were carried out for 30 mass % aqueous solutions of monoethanolmine (MEA), ethylenediamine (EDA) and piperazine (PZ) at 25°C. To distinguish between the amine/protonated amine and bicarbonate/carbonate pairs, an earlier method developed for primary amine (2-amino-2-methyl-1-propanol) was implemented. The amine protonation constant, the dissociation constant of carbonic acid from literature,...
A theoretical study of equilibrium constants of a series of amines and amino acids having a potential for being solvents in post combustion CO2 capture processes has been performed. Density Functional theoretical calculations at B3LYP/6-311++G (d, p) level of theory are used for studying solvation energies and gaseous phase energies. The PCM and SM8T continuum solvation models are used for studying...
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