Modeling and Simulation of CO2 Absorption with Amine Component Solvent

Blended amine solvent has been shown unique and predominant performance while used to capture CO2 compared with the single amine solvent. Calculations were compared with experimental solubility measurements of CO2 in aqueous ternary and quaternary systems of H2O, MEA and AMP. Electrolyte non-random two liquid (ENRTL) theory was employed to fit solubility data in three ternary systems CO2-H2O-MEA and CO2-H2O-AMP. The binary interaction energy parameters for the ionic species were obtained by regression of the experimental solubility data of the ternary systems. A good agreement between the calculated values and the experimental data was achieved. Process simulation for CO2 removal using an equilibrium approach was performed with newly fitted parameters. The simulation results have been compared with the pilot plant experimental data