Calculation of phase equilibrium for water+carbon dioxide system using nonrandom lattice fluid equation of state

Cheong Hoon Kwon, Chang Ha Lee, Jeong Won Kang

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    For the geological sequestration of carbon dioxide to prevent global warming, the phase equilibrium data for water and carbon dioxide mixture play an important role in process design and operation. In this work, the nonrandom lattice fluid equation of state with hydrogen bonding (NLF-HB EOS) was applied for the prediction of phase equilibrium of mixtures containing water and carbon dioxide. A new set of pure component parameters for carbon dioxide above critical condition was found and optimum binary interaction parameters were reported to correlate mutual solubility of mixtures. The calculated results were compared with the Peng-Robinson Equation of State with the conventional mixing rule (PR-EOS) and the Wong-Sandler mixing rule (PR-WS-EOS). The calculation results show that NLF-HB EOS can correlate mutual solubility of water+carbon dioxide mixtures with reasonable accuracy within a single theoretical framework.

    Original languageEnglish
    Pages (from-to)278-283
    Number of pages6
    JournalKorean Journal of Chemical Engineering
    Volume27
    Issue number1
    DOIs
    Publication statusPublished - 2010 Jan

    Bibliographical note

    Funding Information:
    We gratefully acknowledge financial support from the Carbon Dioxide Reduction & Sequestration Research Canter (DA2-202), one of the 21st Century Frontier Programs funded by the Ministry of Education, Science and Technology of the Korean government.

    Keywords

    • Carbon Dioxide
    • Equation of State
    • Mutual Solubility
    • Water

    ASJC Scopus subject areas

    • General Chemistry
    • General Chemical Engineering

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