(351u) Modeling of CO2 Solubility in Aqueous Solutions of Three Blended Amine Using Activity Coefficients
AIChE Annual Meeting
Wednesday, November 18, 2020 - 8:00am to 9:00am
It is important issue that Reducing emissions of Carbon Dioxide (CO2) without decreasing fossil fuel usage. some kinds of alkanolamines has been used for CO2 absorption processes : primary, secondary, tertiary, steric hindrance amines and their binary mixtures. Among them, MEA (Monoethanolamine) is widely used as the solvent for carbon capture and sequestration (CCS). And AMP (2 â amino â 2 â methyl - propanol) is utilized as a stable amine for high CO2 absorption capacity. Also, MDEA (N-methyl-diethanolamine) is uesd as a sweetening agent in chemical, oil refinery, syngas production and natural gas. In this study, equilibrium solubility characteristics of CO2 in 3 Blended amines (MEA, AMP and MDEA) and their mixtures were evaluated by using experimental data and thermodynamic models. To consider the non-ideality, binary parameters of activity coefficients and equilibrium constants were regressed from experimental data. The DESHMUKGH â MATER models are used to estimate interactions between solute species in the liquid phase. Calculations of solubility and optimizations (parameter regression) were conducted by MATLAB® 2019a version. This frame work could be applied to processes of SOx, NOx.