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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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.

Original languageEnglish
Pages (from-to)2840-2847
Number of pages8
JournalJournal of Chemical and Engineering Data
Volume55
Issue number8
DOIs
Publication statusPublished - Aug 12 2010

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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    Loh, W. S., Rahman, K. A., Chakraborty, A., Saha, B. B., Choo, Y. S., Khoo, B. C., & Ng, K. C. (2010). Improved isotherm data for adsorption of methane on activated carbons. Journal of Chemical and Engineering Data, 55(8), 2840-2847. https://doi.org/10.1021/je901011c