CO2 solubility modelling in Non-Precipitating aqueous solutions of potassium lysinate

Modelling of CO2 solubility in aqueous solutions potassium lysinate (LysK) is mainly hindered by scarcity experimental vapor–liquid equilibrium data and lack chemical constants associated to the reaction mechanism for CO2/LysK/H2O system. Therefore, Kent-Eisenberg (KE) correlation stands out from literature, being among most used approaches description partial pressure at different loadings. In this work, a Kent-Eisenberg-like approach has been developed, enhancing empirical with Debye-Hückel activity coefficients order guide model calibration reference selected 33.1 33.5 %w/w LysK solution; moreover, KE edition provides an estimation missing constants. This information embedded first thermodynamically sound predictive Deshmukh-Mather (DM) (average absolute deviation equal 7 %) validated against additional wide temperature concentration range.