Browsing by Author "Rahman, Kazi Afzalur"

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    Adsorption Isotherms of CH4 on Activated Carbon from Indonesian Low Grade Coal
    (wahyu sari yeni, 2019-07-01) Martin, Awaludin; Loh, Wai Soong; Rahman, Kazi Afzalur; Thu, Kyaw; Surayawan, Bambang; Nasruddin, Nasruddin; Choon, Kim
    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, T oth, 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.