Preparation of powdered activated carbon from rice husk and its methane adsorption properties

Marriyappan Sivagnanam Balathanigaimani; Hyun-Chul Kang; Wang-Geun Shim; Chan Kim; Jae-Wook Lee; Hee Moon

Korean Journal of Chemical Engineering, Vol.23, No.4, 663-668, July, 2006

DOI10.1007/BF02706811 Export Citation

Preparation of powdered activated carbon from rice husk and its methane adsorption properties

Marriyappan Sivagnanam Balathanigaimani, Hyun-Chul Kang, Wang-Geun Shim, Chan Kim, Jae-Wook Lee¹, and Hee Moon^†

Faculty of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757, Korea
¹Department of Environmental and Chemical Engineering, Seonam University, Namwon 590-170, Korea

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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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[3] Burchell TD, Carbon materials for advanced technologies, Pergamon, Oxord (1999)

[4] Burchell T, Rogers M, SEA Paper No. 2000-01-2205, Pub. Society of Automotive Engineers, Inc. (2000)

[5] Choi BU, Choi DK, Lee YW, Lee BK, J. Chem. Eng. Data, 48, 603 (2003)

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[7] Cracknell RF, Gordon P, Gubbins KE, J. Phys. Chem., 97, 494 (1993)

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[9] Hill TL, J. Chem. Phys., 17, 520 (1949)

[10] Jaroneic M, Lu XC, Madey R, Sep. Sci. Technol., 24, 1355 (1990)

[11] Sun J, Rood MJ, RostamAbadi M, Lizzio AA, Gas Sep. Purif., 10(2), 91 (1996)

[12] Linares-Solano V, Fuel, 81, 1777 (2002)

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[14] Lozano-Castello D, Cazorla-Amoros D, Linares-Solano A, Energy Fuels, 16(5), 1321 (2002)

[15] Kim BH, Kum GH, Seo YG, Korean J. Chem. Eng., 20(1), 104 (2003)

[16] MacDonald JAF, Quinn DF, Fuel, 77(1), 61 (1998)

[17] Malek A, Farooq S, AIChE J., 42(11), 3191 (1996)

[18] Menon V, Kormarnei S, J. Porous Mat., 5, 43 (1998)

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[22] Nguyen DM, Do DD, J. Phys. Chem. B, 103, 690 (1999)

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[25] Wegrzyn J, Gurevich M, Appl. Energy, 55(2), 71 (1996)

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