Improved Isotherm Data for Adsorption of Methane on Activated Carbons

Wai Soong Loh, Kazi Afzalur Rahman, Anutosh Chakraborty, Bidyut Baran Saha, Yoo Sang Choo, Boo Cheong Khoo, Kim Choon Ng

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    64 Scopus citations

    Abstract

    This article presents the adsorption isotherms of methane onto two different types of activated carbons, namely, Maxsorb III and ACF (A-20) at temperatures from (5 to 75) °C and pressures up to 2.5 MPa. The volumetric technique has been employed to measure the adsorption isotherms. The experimental results presented herein demonstrate the improved accuracy of the uptake values compared with previous measurement techniques for similar adsorbate-adsorbent combinations. The results are analyzed with various adsorption isotherm models. The heat of adsorption, which is concentration and temperature dependent, has been calculated from the measured isotherm data. Henry's law coefficients for these adsorbent-methane pairs are also evaluated at various temperatures. © 2010 American Chemical Society.
    Original languageEnglish (US)
    Pages (from-to)2840-2847
    Number of pages8
    JournalJournal of Chemical & Engineering Data
    Volume55
    Issue number8
    DOIs
    StatePublished - Aug 12 2010

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