Prediction of water content of natural gases using the PC-SAFT equation of state

K. Nasrifar*, F. Alavi, J. Javanmardi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Water contents of synthetic sweet and sour natural gas–like mixtures and their constituents for wide ranges of temperature and pressure are studied in this work. The perturbed-chain version of statistical associated fluid theory (PC-SAFT) is used to describe the vapor and aqueous phase. In addition to repulsion and dispersion interactions, the 4C association scheme is used to account for self-association between water molecules. Using the PC-SAFT approach, the water contents of methane, ethane, hydrogen sulfide, carbon dioxide, and certain synthetic sweet and sour natural gas mixtures are predicted satisfactorily.

Original languageEnglish
Pages (from-to)40-45
Number of pages6
JournalFluid Phase Equilibria
Publication statusPublished - Dec 15 2017


  • Acid gas
  • Natural gas
  • Sweet gas
  • Water content

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this