Title | Molecular thermodynamic modeling of aqueous Na + -K + -Mg 2+ -Ca 2+ -SO 42− quinary system |
Publication Type | Journal Article |
Year of Publication | 2019 |
Authors | Tanveer, S, Chen, CChyun |
Journal | Fluid Phase Equilibria |
Volume | 491 |
Pagination | 77-87 |
Date Published | 07/2019 |
ISSN | 03783812 |
Keywords | Aqueous electrolytes, Electrolyte NRTL model, High salinity brine solutions, Project 2.7, Solubility, Thermodynamic properties |
Abstract | As part of the effort to develop a comprehensive molecular thermodynamic model for high salinity produced water based on the electrolyte nonrandom two-liquid theory, this work presents the model results for the aqueous Na + -K + -Mg 2+ -Ca 2+ -SO 42− quinary system. With the binary interaction parameters fully parameterized for the water-electrolyte pairs and the electrolyte-electrolyte pairs, the model satisfactorily describes the thermodynamic properties for the aqueous quinary system and its binary, ternary, and quaternary subsystems for the temperature range 273.15–473.15 K and the salt concentrations up to saturation. The model results are compared with the salt solubility and thermodynamic data available for the subsystems with special attention to systems involving (Ca 2+ SO 42− ). |
URL | https://www.osti.gov/biblio/1613474-molecular-thermodynamic-modeling-aqueous-na+-k+-mg2+-ca2+-so42-quinary-system |
DOI | 10.1016/j.fluid.2019.03.006 |
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