Measurement and Modeling of Gas Solubility and Literature Review of the Properties for the Carbon Dioxide-Water System

A. Chapoy, A. H. Mohammadi, A. Chareton, B. Tohidi, D. Richon

    Research output: Contribution to journalLiterature reviewpeer-review

    128 Citations (Scopus)

    Abstract

    New experimental data on the solubility of CO2 in water are reported in a wide temperature range (i.e., 274.14 up to 351.31 K). The experimental method is based on measurement of the bubble-point pressure of known water-CO2 binaries at isothermal conditions using a variable-volume PVT cell. An extensive literature review has been conducted on the mutual solubilities of CO2-water systems and CO2 hydrate-forming conditions. A critical evaluation of the literature data has been conducted to identify any inconsistencies in the reported data. The new experimental data generated in this work are also compared with the literature data, demonstrating the reliability of techniques used in this work. The Valderrama modification of the Patel-Teja equation of state combined with non-density-dependent mixing rules is used to model the fluid phases. The hydrate-forming conditions are modeled by the solid solution theory of van der Waals and Platteeuw with previously reported Kihara potential parameters. The fugacity of ice is calculated by correcting the saturation fugacity of water at the same temperature by using the Poynting correction. The new CO2 solubility data generated in this work together with the most reliable literature data are used for tuning the binary interaction parameters between subcritical CO2 and water. The previously reported binary interaction parameters for CO2 and water are used for the supercritical region. The predicted water content and the hydrate dissociation conditions are compared with the experimental data. The model results are in good agreement with independent experimental data, demonstrating reliability of the techniques and model presented in this work.

    Original languageEnglish
    Pages (from-to)1794-1802
    Number of pages9
    JournalIndustrial and Engineering Chemistry Research
    Volume43
    Issue number7
    DOIs
    Publication statusPublished - 31 Mar 2004

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