Comparative Study of Linear Co-Volume Based Mixing Rules for Equation of State/ Excess Gibbs Energy (EOS/GE) Models for CO2 – MEA and CO2 – MDEA Systems

Humbul Suleman, Abdulhalim Shah Maulud, Zakaria Man

Research output: Contribution to journalArticlepeer-review

Abstract

With the advent of Equation of State/ Excess Gibbs Energy (EOS/GE) models, the linear co-volume based mixing rules have gained vast importance for predicting multi-component VLE for polar mixtures. Owing to their inherent ease of calculation and good prediction abilities, these mixing rules have been applied in extension, to a variety of systems especially for CO2-H2O-alkanolamine systems. However, no comparative study is available to select appropriate mixing rule for prediction of thermodynamic properties. In this study, pressure prediction of various linear co-volume mixing rules has been compared for CO2 – MEA and CO2 – MDEA systems, while effects of activity coefficients and process parameters have been kept constant. The infinite pressure mixing rules have heavily under – predicted and approximate zero reference pressure mixing rules have over – predicted, but latter are valid for low and medium pressure ranges. The linear combination of Vidal and Michelsen (LCVM) mixing rule have good predictions at high pressures.
Original languageEnglish
Pages (from-to)541-544
Number of pages4
JournalApplied Mechanics and Materials
Volume625
DOIs
Publication statusPublished - 1 Sep 2014

Fingerprint

Dive into the research topics of 'Comparative Study of Linear Co-Volume Based Mixing Rules for Equation of State/ Excess Gibbs Energy (EOS/G<sup>E</sup>) Models for CO<sub>2</sub> – MEA and CO<sub>2</sub> – MDEA Systems'. Together they form a unique fingerprint.

Cite this