Physical Properties of MEA + Water + CO<sub>2</sub> Mixtures in Postcombustion CO<sub>2</sub> Capture: A Review of Correlations and Experimental Studies
Sumudu Karunarathne, Dag A. Eimer, Lars Erik Øi
Abstract
The knowledge of physicochemical properties of a mixture of amine, water, and CO 2 is beneficial in evaluating the postcombustion CO 2 capture process and process equipment design. This study reviews the literature of density, viscosity, and surface tension measurements with the evaluated measurement uncertainties and proposed correlations for monoethanol amine (MEA), water, and CO 2 mixtures. Adequate research has been performed to measure and develop correlations for pure MEA and aqueous MEA mixtures, but further studies are required for CO 2 -loaded aqueous MEA mixtures. The correlations fit measured properties with an acceptable accuracy, and they are recommended to use in process equipment design, mathematical modelling, and simulations of absorption and desorption.