Extensions of the SAFT model for complex association in the bulk and interface

Wael A. Fouad, Amin Haghmoradi, Le Wang, Artee Bansal, Ali Al Hammadi, Dilip Asthagiri, Essmaiil Djamali, Kenneth R. Cox, Walter G. Chapman

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

In honor of the 25th anniversary of the SAFT equation of state, this paper presents a brief review of successes in modeling fluid mixtures with associating, polyatomic, and polar components using the SAFT equation of state. Challenges for the association term to predict monomer and dimer fractions in comparison with spectroscopic data are described. To address these challenges and challenges in patchy colloids, extensions to the associating term are reviewed that incorporate multiple bonding at association sites and cooperative association. Approximations in these extensions are validated through comparisons with molecular simulation results. Further, application of the density functional form of the theory to form micelles is briefly reviewed.

Original languageEnglish
Pages (from-to)62-71
Number of pages10
JournalFluid Phase Equilibria
Volume416
DOIs
StatePublished - May 25 2016
Externally publishedYes

Funding

W.A.F. gratefully acknowledges the Abu Dhabi National Oil Company for financial support through a Ph.D. scholarship. L.W. gratefully acknowledges Rice University Consortium for Processes in Porous Media for financial support. A.H. gratefully acknowledges the financial support from the Robert A. Welch Foundation (Grant No. C-1241 ). A.B. gratefully acknowledges RPSEA/DOE 10121-4204-01 for funding the project on “Corrosion and Scale at Extreme Temperature and Pressure”.

FundersFunder number
Robert A. Welch FoundationRPSEA/DOE 10121-4204-01
Abu Dhabi National Oil Company

    Keywords

    • Electrolytes
    • Micelle
    • SAFT
    • Water content

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