The Adsorption of COS with a Modified-Activated Carbon for Ultra-Cleanup of Coal Gas 


Vol. 13,  No. 4, pp. 266-273, Dec.  2007


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  Abstract

The adsorption properties of the activated carbon-based adsorbents were studied to remove COS emitted from SO2 catalytic reduction process on the integrated gasification combined cycle (IGCC) system in this work. Transition metal supported catalysts and mixed metal oxide catalysts were used for the SO2 catalytic reduction. The mechanism of COS produced from the SO2 reduction and the COS concentration s according to the reaction temperature were investigated. In this study, an activated carbon and a modified activated carbon doped with KOH were used to remove the very low concentration of COS effectively. The adsorption rate and the breakthrough time of COS were measured by a thermo gravity analyzer (TGA, Cahn Balance) and a fixed bed flow reactor equipped with GC-pulsed flammable photometric detector (PFPD), respectively. It was confirmed that the COS breakthrough time of the activated carbon doped with KOH was longer than that of an activated carbon. In conclusion, the modified-activated carbon having a high surface area showed a high adsorption rate of COS produced from the SO2 reduction.

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  Cite this article

[IEEE Style]

L. YJ, P. NK, L. TJ, "The Adsorption of COS with a Modified-Activated Carbon for Ultra-Cleanup of Coal Gas," Clean Technology, vol. 13, no. 4, pp. 266-273, 2007. DOI: .

[ACM Style]

Lee YJ, Park NK, and Lee TJ. 2007. The Adsorption of COS with a Modified-Activated Carbon for Ultra-Cleanup of Coal Gas. Clean Technology, 13, 4, (2007), 266-273. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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