Mathematical Models for Physicochemical Properties of Different Amine-based Solvents in Post combustion CO2 Capture

In order to reduce global CO2 emissions, capture based on absorption in an amine/water mixture is established method. To develop such processes, correct physicochemical properties like densities and viscosities are important.The first objective of this work explore mathematical correlations for fitting viscosity data aqueous Monoethanolamine (MEA) Methyldiethanolamine (MDEA). A second evaluate the prediction parameters independent measurements.13 developed have been evaluated by comparing maximum deviation fitted models measured property, determining average absolute relative (AARD%). Python 3.6, MATLAB R2020b Excel were used as tools regression.The results indicated that amines was better correlated Eyring’s model NRTL (Non-Random-Two Liquid model) rather than a Redlich-Kister correlation. The achieved AARD% MEA 2.39 Redlich-Kister, 1.87 Eyring-NRTL 1.88 segment-based model. same trend MDEA with 3.04, 2.23 different approaches.The possibility using from vapor/liquid equilibrium predict MEA/water MDEA/water evaluated. Using simulation program Aspen HYSYS Karunarathne it possible reasonably well without experimental data.