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 language||English (US)|
|Number of pages||8|
|Journal||Journal of Chemical & Engineering Data|
|State||Published - Aug 12 2010|
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors' gratefully acknowledge the financial support given by grants (R33-2009-000-1966-0) from World Class University (WCU), Project of the National Research Foundation, Korea, (R265-000-268-305) from A*STAR/MPA, Singapore, and (R265-000-286-597) from King Abdullah University of Science and Technology (KAUST), KSA.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.