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Extending application of Dehaghani Association Equation of State for Modeling Phase Behavior of Water-Alcohol Systems
, Article Fluid Phase Equilibria ; Volume 482 , 2019 , Pages 126-133 ; 03783812 (ISSN) ; Badizad, M. H ; Sharif University of Technology
Elsevier B.V
2019
Abstract
This paper concerns extending applicability of Dehaghani association equation of state (in short DA-EOS) to model non-ideality in phase behavior caused by hydrogen bonding. Advantageously, this equation only needs two and one parameters to treat self- and cross association, respectively, which were determined for methanol/water and ethanol/water mixture in this study. In this respect, DA was coupled with PR and SRK EOS to account for physical interaction between molecules. Notably, DA-PR persistently provides more accurate prediction than DA-SRK for both aqueous methanol and ethanol solutions