Modeling of adsorption on porous activated carbons using SLD-ESD model with a pore size distribution

Xiaoning Yang, Carl T. Lira

    Research output: Contribution to journalArticle

    • 5 Citations

    Abstract

    The simplified local density (SLD) approach using the Elliott, Suresh, Donohue (ESD) equation of state is developed to model the adsorption on porous activated carbons by consideration of the pore size distribution (PSD). The SLD-ESD approach is used to calculate the local adsorption amount for a given pore width. The total adsorption on porous materials is the sum of all local adsorption amounts over entire range of pore structure sizes. The adsorption of a pure component can be fitted well by this SLD-ESD model for a wide temperature range. The reasonability and reliability of PSDs obtained from different gas probes are characterized. The PSDs determined by the adsorption data of pure components have been used to predict the adsorption equilibria of binary mixtures. By applying to different systems for wide conditions, the predictive capacity of this model was examined. It is shown that the SLD-ESD theoretical model in conjunction with PSD analysis can provide a reasonable prediction for mixture adsorption.

    Original languageEnglish (US)
    Pages (from-to)314-322
    Number of pages9
    JournalChemical Engineering Journal
    Volume195-196
    DOIs
    StatePublished - Jul 1 2012

    Profile

    Adsorption
    adsorption
    Anthralin
    Cockroaches
    Density (specific gravity)
    Myxomycetes
    Pore size
    Affinity Labels
    Activated carbon
    activated carbon
    Acetanilides
    Sulfur Amino Acids
    Peroxidases
    Agglutination Tests
    Dilated Cardiomyopathy
    Equations of state
    Pore structure
    Binary mixtures
    Porous materials
    Gases

    Keywords

    • Activated carbon
    • Adsorption
    • Equation of state
    • Pore size distribution
    • SLD theory

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)
    • Industrial and Manufacturing Engineering
    • Environmental Chemistry

    Cite this

    Modeling of adsorption on porous activated carbons using SLD-ESD model with a pore size distribution. / Yang, Xiaoning; Lira, Carl T.

    In: Chemical Engineering Journal, Vol. 195-196, 01.07.2012, p. 314-322.

    Research output: Contribution to journalArticle

    Yang, Xiaoning; Lira, Carl T. / Modeling of adsorption on porous activated carbons using SLD-ESD model with a pore size distribution.

    In: Chemical Engineering Journal, Vol. 195-196, 01.07.2012, p. 314-322.

    Research output: Contribution to journalArticle

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    abstract = "The simplified local density (SLD) approach using the Elliott, Suresh, Donohue (ESD) equation of state is developed to model the adsorption on porous activated carbons by consideration of the pore size distribution (PSD). The SLD-ESD approach is used to calculate the local adsorption amount for a given pore width. The total adsorption on porous materials is the sum of all local adsorption amounts over entire range of pore structure sizes. The adsorption of a pure component can be fitted well by this SLD-ESD model for a wide temperature range. The reasonability and reliability of PSDs obtained from different gas probes are characterized. The PSDs determined by the adsorption data of pure components have been used to predict the adsorption equilibria of binary mixtures. By applying to different systems for wide conditions, the predictive capacity of this model was examined. It is shown that the SLD-ESD theoretical model in conjunction with PSD analysis can provide a reasonable prediction for mixture adsorption.",
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