Adsorption Isotherms of Hydrogen on Granular Activated Carbon Derived From Coal and Derived From Coconut Shell
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Date
2019-07-01
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Publisher
wahyu sari yeni
Abstract
The development of adsorption-based storage systems requires a basic understanding of the
isotherms over a wide range of pressure and temperatures for various types of adsorbents. This
research is to generate experimental isothermal adsorption data for the adsorption of hydrogen gas
on activated carbon. The adsorption apparatus is based on a volumetric method, and the experiments
were conducted at temperatures ranging from 273 to 308 K and pressures up to 4 MPa. Two types of
activated carbon, (i) a granular coal from Indonesia and (ii) a coconut-shell activated carbon that is
produced in the laboratory, were used in the experiments. The experimental data are analyzed using
the Langmuir, Toth, and Langmuir–Freundlich isotherm models