Equilibrium concentration profiles of species in CO2—alkanolamine—water systems

摘要: Equilibrium concentrations of species and gas loading in aqueous solutions alkanolamine loaded with CO2 are being compared predicted profiles obtained from the Deshmukh-Mather Model. A new technique is proposed based on titration using a base, NaOH, to determine different at equilibrium. The reliable easy perform give reproducible results. Experimental good agreement over range between 0.4 1.0 for AMP solutions. For DEA, measured values complement each other high typically above 0.6. At low loading, there significant difference sets carbamate bicarbonate. These differences likely due value equilibrium constant formation, which taken as an adjustable parameter model, best fit experimental data either partial pressure or loading.