Aqueous-phase adsorption of glycerol and propylene glycol onto activated carbon

Lars Peereboom, Benjamin Koenigsknecht, Margaret Hunter, James E. Jackson, Dennis J. Miller

    Research output: Contribution to journalArticle

    • 14 Citations

    Abstract

    Adsorption of reactant and product species can have a major effect on local pore concentrations in activated carbon-supported metal catalysts. Individual and combined adsorption of glycerol (GO) and propylene glycol (PG) onto activated carbon in aqueous solution is reported here at concentration ranges of 0.05-2.0 M and temperatures from 25 °C to 160 °C. Langmuir and Freundlich isotherms are used to model the single component data, with the Langmuir model best describing results below 0.75 M. The extended Langmuir model has been used to model the competitive adsorption system - model parameters determined from single component experiments accurately predict two component adsorption data over the temperature and concentration ranges studied. Propylene glycol adsorbs more strongly than GO onto the activated carbon supports studied, and also adsorbs to a somewhat greater extent compared to GO. This is attributed to the greater organic character of PG, which favors its selective adsorption onto the support material.

    Original languageEnglish (US)
    Pages (from-to)579-586
    Number of pages8
    JournalCarbon
    Volume45
    Issue number3
    DOIs
    StatePublished - Mar 2007

    Profile

    Adsorption
    Anthralin
    Glycols
    Glycerol
    Activated carbon
    Propylene
    Affinity Labels
    Temperature
    Acetanilides
    Isotherms
    Catalysts
    Metals
    Experiments
    Common Bile Duct Diseases
    Afferent Loop Syndrome
    Almanacs
    Bacteriophage Typing
    Traffic Accidents

    ASJC Scopus subject areas

    • Materials Chemistry

    Cite this

    Aqueous-phase adsorption of glycerol and propylene glycol onto activated carbon. / Peereboom, Lars; Koenigsknecht, Benjamin; Hunter, Margaret; Jackson, James E.; Miller, Dennis J.

    In: Carbon, Vol. 45, No. 3, 03.2007, p. 579-586.

    Research output: Contribution to journalArticle

    Peereboom, Lars; Koenigsknecht, Benjamin; Hunter, Margaret; Jackson, James E.; Miller, Dennis J. / Aqueous-phase adsorption of glycerol and propylene glycol onto activated carbon.

    In: Carbon, Vol. 45, No. 3, 03.2007, p. 579-586.

    Research output: Contribution to journalArticle

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    abstract = "Adsorption of reactant and product species can have a major effect on local pore concentrations in activated carbon-supported metal catalysts. Individual and combined adsorption of glycerol (GO) and propylene glycol (PG) onto activated carbon in aqueous solution is reported here at concentration ranges of 0.05-2.0 M and temperatures from 25 °C to 160 °C. Langmuir and Freundlich isotherms are used to model the single component data, with the Langmuir model best describing results below 0.75 M. The extended Langmuir model has been used to model the competitive adsorption system - model parameters determined from single component experiments accurately predict two component adsorption data over the temperature and concentration ranges studied. Propylene glycol adsorbs more strongly than GO onto the activated carbon supports studied, and also adsorbs to a somewhat greater extent compared to GO. This is attributed to the greater organic character of PG, which favors its selective adsorption onto the support material.",
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