Equilibrium Adsorption Measurements of Pure Nitrogen, Carbon Dioxide, and Methane on a Carbon Molecular Sieve at Cryogenic Temperatures and High Pressures

Guillaume Watson, Eric May, Brendan Graham, M.A. Trebble, R.D. Trengrove, K.I. Chan

    Research output: Contribution to journalArticle

    31 Citations (Scopus)

    Abstract

    A detailed experimental study of the adsorption behavior at equilibrium of pure nitrogen, methane, and carbon dioxide gases on a commercial carbon molecular sieve (Shirasagi MSC 3K-161) is reported at temperatures between 115 K to 323 K and pressures up to 5 MPa. A volumetric-type apparatus was used to obtain over 200 excess (Gibbs) adsorption capacity data over this range of pressure and temperature with an estimated uncertainty of 4 %. The absolute adsorption isotherms were type I in the IUPAC classification with the adsorption capacity at constant pressure increasing significantly with decreasing temperature. For each gas, the adsorption data were regressed to a four parameter Toth equation to represent the temperature and pressure dependence of the data with a relative standard uncertainty of 4 %. The optimized parameters from the Toth equation included the isosteric enthalpies of adsorption that were 17 kJ·mol−1, 27 kJ·mol−1, and 18 kJ·mol−1 for N2, CO2, and CH4, respectively.
    Original languageEnglish
    Pages (from-to)2701-2707
    JournalJournal of Chemical and Engineering Data
    Volume54
    Issue number9
    DOIs
    Publication statusPublished - 2009

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    Methane
    Molecular sieves
    Carbon Dioxide
    Cryogenics
    Carbon dioxide
    Nitrogen
    Carbon
    Adsorption
    Temperature
    Gases
    Adsorption isotherms
    Enthalpy
    Uncertainty

    Cite this

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    title = "Equilibrium Adsorption Measurements of Pure Nitrogen, Carbon Dioxide, and Methane on a Carbon Molecular Sieve at Cryogenic Temperatures and High Pressures",
    abstract = "A detailed experimental study of the adsorption behavior at equilibrium of pure nitrogen, methane, and carbon dioxide gases on a commercial carbon molecular sieve (Shirasagi MSC 3K-161) is reported at temperatures between 115 K to 323 K and pressures up to 5 MPa. A volumetric-type apparatus was used to obtain over 200 excess (Gibbs) adsorption capacity data over this range of pressure and temperature with an estimated uncertainty of 4 {\%}. The absolute adsorption isotherms were type I in the IUPAC classification with the adsorption capacity at constant pressure increasing significantly with decreasing temperature. For each gas, the adsorption data were regressed to a four parameter Toth equation to represent the temperature and pressure dependence of the data with a relative standard uncertainty of 4 {\%}. The optimized parameters from the Toth equation included the isosteric enthalpies of adsorption that were 17 kJ·mol−1, 27 kJ·mol−1, and 18 kJ·mol−1 for N2, CO2, and CH4, respectively.",
    author = "Guillaume Watson and Eric May and Brendan Graham and M.A. Trebble and R.D. Trengrove and K.I. Chan",
    year = "2009",
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    language = "English",
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    pages = "2701--2707",
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    publisher = "American Chemical Society",
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    Equilibrium Adsorption Measurements of Pure Nitrogen, Carbon Dioxide, and Methane on a Carbon Molecular Sieve at Cryogenic Temperatures and High Pressures. / Watson, Guillaume; May, Eric; Graham, Brendan; Trebble, M.A.; Trengrove, R.D.; Chan, K.I.

    In: Journal of Chemical and Engineering Data, Vol. 54, No. 9, 2009, p. 2701-2707.

    Research output: Contribution to journalArticle

    TY - JOUR

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    AU - Watson, Guillaume

    AU - May, Eric

    AU - Graham, Brendan

    AU - Trebble, M.A.

    AU - Trengrove, R.D.

    AU - Chan, K.I.

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    AB - A detailed experimental study of the adsorption behavior at equilibrium of pure nitrogen, methane, and carbon dioxide gases on a commercial carbon molecular sieve (Shirasagi MSC 3K-161) is reported at temperatures between 115 K to 323 K and pressures up to 5 MPa. A volumetric-type apparatus was used to obtain over 200 excess (Gibbs) adsorption capacity data over this range of pressure and temperature with an estimated uncertainty of 4 %. The absolute adsorption isotherms were type I in the IUPAC classification with the adsorption capacity at constant pressure increasing significantly with decreasing temperature. For each gas, the adsorption data were regressed to a four parameter Toth equation to represent the temperature and pressure dependence of the data with a relative standard uncertainty of 4 %. The optimized parameters from the Toth equation included the isosteric enthalpies of adsorption that were 17 kJ·mol−1, 27 kJ·mol−1, and 18 kJ·mol−1 for N2, CO2, and CH4, respectively.

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