Adsorption characteristics of methyl mercaptan, dimethyl disulfide, and trimethylamine on coconut-based activated carbons modified with acid and base

Song-Woo Lee; Wan Mohd Ashri Wan Daud; Min-Gyu Lee

Journal of Industrial and Engineering Chemistry, Vol.16, No.6, 973-977, November, 2010

DOI10.1016/j.jiec.2010.04.002 Export Citation

Adsorption characteristics of methyl mercaptan, dimethyl disulfide, and trimethylamine on coconut-based activated carbons modified with acid and base

Song-Woo Lee, Wan Mohd Ashri Wan Daud¹, and Min-Gyu Lee^†

Department of Chemical Engineering, Pukyong National University, Busan 608-739, Republic of Korea
¹Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia

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The influence of surface modification of activated carbon on the adsorption of methyl mercaptan (MM), dimethyl disulfide (DMDS), and trimethylamine (TMA) was investigated by treatments with 1N-HNO3 solution and 1N-NaOH solution. The surface modifications changed the concentrations of functional groups on the surface of activated carbon. Also, the surface modifications changed breakthrough time and equilibrium adsorption capacity of MM, DMDS, and TMA. The adsorption capacities of MM and DMDS were increased by acid treatment, but decreased by base treatment. On the other hand, the adsorption capacity of TMA was decreased by both acid and base treatments. But the difference ranges of equilibrium adsorption capacities according to acidity and basicity of the surface were relatively small.

Keywords:Adsorption;Activated carbon;Methyl mercaptan;Dimethyl disulfide;Trimethylamine

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[1] Choi JJ, J. Ind. Eng. Chem., 3(1), 56 (1997)

[2] Ryu DK, Kim SH, J. Ind. Eng. Chem., 9, 286 (1998)

[3] Chingombe P, Saha B, Wakeman RJ, Carbon., 43, 3132 (2005)

[4] Ju HS, Kim BH, Jung SC, Ra DG, J. Korean Soc. Environ. Eng., 22, 203 (2000)

[5] Garcia T, Murillo R, Cazorla-Amoros D, Mastral AM, Linares-Solano A, Carbon., 42, 1683 (2004)

[6] You SH, Kim HS, Kim HH, J. Ind. Eng. Chem., 8, 631 (1997)

[7] Ju CS, Park HJ, Jeong KS, J. Environ. Sci., 12, 1005 (2003)

[8] Pereira MFR, Soares SF, Orfao JJM, Figueiredo JL, Carbon., 41, 811 (2003)

[9] Biniak S, Pakula M, Szymanski GS, Swiatkowski A, Langmuir, 15(18), 6117 (1999)

[10] Shim J, Park S, Ryu S, Carbon., 39, 1635 (2001)

[11] Kim BH, Kang M, J. Korean Solid Org. Waste Manage., 21, 319 (2004)

[12] Shim CH, Lee WK, J. Korean Soc. Atmos. Environ., 22, 25 (2006)

[13] Lee SW, Kam SK, Lee MG, J. Ind. Eng. Chem., 13(6), 911 (2007)

[14] Lee SW, Cheon JK, Park HJ, Lee MG, Korean J. Chem. Eng., 25(5), 1154 (2008)

[15] Lee SW, Lee MG, Park SB, J. Environ. Sci., 17, 565 (2008)

[16] Noh JS, Schwarz JA, Carbon., 28, 675 (1990)

[17] Pittman CU, He GR, Wu B, Gardner SD, Carbon., 35, 317 (1997)

[18] Bansal RC, Goyal M, Activated Carbon Adsorption, CRC Press, Boca Raton, FL, 36 (2005)

[19] Wagner CD, Riggs WM, Davis LE, Moulder JF, Muilenberg GE, Handbook of Xray Photoelectronic Spectroscopy, Perkin-Elmer, Prairie, MN, 62 (1978)