Thermodynamic analysis of carbamate formation and carbon dioxide absorption in N-methylaminoethanol solution

Protonation and carbamate formation are critical reactions for CO2 capture using amine-based absorbents which impact both absorption amine regeneration. In this regard, thermodynamic analysis towards in N-methylaminoethanol solution is carried out with specific attention to the corresponding protonation reactions. The mechanism investigated acquisition of reaction equilibrium constant heat reaction. performance was evaluated terms loading pH. A model then developed mathematically describe system make prediction on solubility, species profiles, absorption/regeneration heat. Results show that average relative deviation solubility calculated from 4.2%. predictive profile indicates less energy cost desorb CO2. This line unstable consequential conversion (bi)carbonate. position as a potential absorbent based carbon shown chemical constants, second order rate (k2), pKa.