A new generalized Henry-Setschenow equation for predicting the solubility of air gases (oxygen, nitrogen and argon) in seawater and saline solutions

José O. Valderrama, Richard A. Campusano, Luis A. Forero

    Research output: Contribution to journalArticlepeer-review

    14 Scopus citations

    Abstract

    A generalized expression for estimating the solubility or air gases (oxygen, nitrogen and argon) in saline solutions at atmospheric pressure is presented. The generalization is done for the Henry's constant (to consider the effect of temperature) and for the Setschenow parameter (to consider the effect of salt content in the solution), in terms of the acentric factor, the temperature, and the salinity expressed as the total content of salt. Accurate correlation and prediction of gas solubility is important in various scientific and technological fields and for the design of separation equipment in the chemical and mining-related industries. As a measure of the accuracy of the generalized model, the average deviation, the absolute average deviation and the maximum absolute deviation between correlated and experimental data are evaluated. The proposed model give absolute deviations lower than 1% with some few exceptions, and maximum deviations are always below 4%.

    Original languageEnglish
    Pages (from-to)1218-1227
    Number of pages10
    JournalJournal of Molecular Liquids
    Volume222
    DOIs
    StatePublished - 1 Oct 2016

    Bibliographical note

    Funding Information:
    The authors thank the support of the National Council for Scientific and Technological Research ( CONICYT ) through the research grant Anillo ACT 1201, Project financed by the Innovation for Competitiveness Fund of the Antofagasta Region in Chile. The authors also thank the Center for Technological Information (CIT, La Serena-Chile) for computer and library facilities and the Direction of Research of the University of La Serena, for permanent support. L.A.F. thanks the Faculty of Chemical Engineering of the University Pontificia Bolivariana, Medellin (Colombia).

    Publisher Copyright:
    © 2016 Elsevier B.V.

    Keywords

    • Henry's law
    • Saline solutions
    • Seawater
    • Setschenow equation
    • Solubility of gases

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