Adsorption equilibrium of benzaldehyde and benzyl alcohol onto polymeric resin from supercritical CO2

Xiaoning Yang, Carl T. Lira

    Research output: Research - peer-reviewArticle

    • 1 Citations

    Abstract

    A frontal chromatographic technique was used to measure the adsorption isotherms of benzaldehyde and benzyl alcohol onto a polymeric resin in supercritical CO2 (scCO2). The effect of temperature and pressure (density) on adsorption behavior was investigated. It was observed that benzyl alcohol has stronger adsorption than benzaldehyde. The desorption of benzaldehyde using scCO2 from the polymeric resin adsorbent was studied under the same temperature and pressure ranges. The local equilibrium theory was found to reasonably predict the desorption profiles. A phenomenological statistical thermodynamic model combined with classic Peng–Robinson equations of state was used to correlate the adsorption equilibrium isotherms of the solutes from scCO2. This theoretical model with three parameters is able to describe the adsorption behavior over wide temperature and pressure ranges.

    LanguageEnglish (US)
    Pages63-71
    Number of pages9
    JournalAdsorption
    Volume23
    Issue number1
    DOIs
    StatePublished - Jan 1 2017

    Profile

    Benzyl Alcohol
    Carbon Monoxide
    Resins
    Adsorption
    benzaldehyde
    Alcohols
    resins
    alcohols
    adsorption
    Temperature
    temperature
    Desorption
    isotherms
    desorption
    Statistical mechanics
    Adsorption isotherms
    Equations of state
    Adsorbents
    Isotherms
    adsorbents

    Keywords

    • Adsorption isotherms
    • Benzaldehyde
    • Benzyl alcohol
    • Equation of state
    • Supercritical carbon dioxide

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Surfaces and Interfaces

    Cite this

    Adsorption equilibrium of benzaldehyde and benzyl alcohol onto polymeric resin from supercritical CO2 . / Yang, Xiaoning; Lira, Carl T.

    In: Adsorption, Vol. 23, No. 1, 01.01.2017, p. 63-71.

    Research output: Research - peer-reviewArticle

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