This article presents an experimental approach for the determination of the adsorption isotherms of methane on activated carbon that is essential for methane storage purposes. The experiments incorporated a constant-volume- variable-pressure (CVVP) apparatus, and two types of activated carbon have been investigated, namely, activated carbon derived from the low rank coal of the East of Kalimantan, Indonesia, and a Carbotech activated carbon. The isotherm results which cover temperatures from (300 to 318) K and pressures up to 3.5 MPa are analyzed using the Langmuir, Tóth, and Dubinin-Astakhov (D-A) isotherm models. The heat of adsorption for the single component methane-activated carbon system, which is concentration- and temperature-dependent, is determined from the measured isotherm data. © 2011 American Chemical Society.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): R265-000-286-597
Acknowledgements: The authors gratefully acknowledge the financial support given by the following grants, R33-2009-000-1966-0 of the World Class University Project of Jeju University, the National Research Foundation, Korea, R265-000-268-305/490 from A*STAR/MPA, and R261-501-002-414 from M3TC, National University of Singapore, Singapore, R265-000-286-597 from King Abdullah University of Science and Technology (KAUST), Saudi Arabia, and 1010B/DRPM-UI/A/N1.4/2009 from Hibah DIKTI Ministry of National Education, Indonesia.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.