Adsorption Isotherms of CH 4 on Activated Carbon from Indonesian Low Grade Coal

Awaludin Martin, Wai Soong Loh, Kazi Afzalur Rahman, Kyaw Thu, Bambang Surayawan, M. Idrus Alhamid, Nasruddin, Kim Choon Ng

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29 Scopus citations


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.
Original languageEnglish (US)
Pages (from-to)361-367
Number of pages7
JournalJournal of Chemical & Engineering Data
Issue number3
StatePublished - Mar 10 2011
Externally publishedYes


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