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Issue
Korean Journal of Chemical Engineering,
Vol.23, No.4, 663-668, 2006
Preparation of powdered activated carbon from rice husk and its methane adsorption properties
Balathanigaimani MS, Kang HC, Shim WG, Kim C, Lee JW, Moon H
Success of adsorbed natural gas (ANG) storage process is mainly based on the characteristics of the adsorbent, so various synthesized adsorbents were analyzed for methane adsorption on a thermodynamic basis. Activated carbon from rice husk (AC-RH) was synthesized and its methane adsorption capacities were compared with phenol based activated carbons (AC-PH2O and AC-PKOH). The adsorption experiments were conducted by volumetric method under various constant temperatures (293.15, 303.15, 313.15 and 323.15 K) and pressure up to 3.5MPa. Maximum methane adsorption was observed in AC-RH as its surface area is higher than the other two adsorbents. The experimental data were correlated well with Langmuir-Fruendlich isotherms. In addition, isosteric heat of adsorption was calculated by using Clausius-Clapeyron equation.
Keywords: Adsorbed Natural Gas; Activated Carbon; High Pressure Adsorption; Isosteric Heat of Adsorption
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[Cited By]
  1. Moon H, Journal of the Korean Industrial and Engineering Chemistry, 18(1), 1, 2007
  2. Balathanigaimani MS, Shim WG, Kim SC, Applied Chemistry for Engineering, 28(1), 8, 2017
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