A Study on Reactivity of ZnO-CuO Sorbent for Hot Gas Desulfurization 


Vol. 9,  No. 4, pp. 189-196, Dec.  2003


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  Abstract

ZnO-CuO mixed sorbent for desulfurization in hot gas cleaning process were prepared and investigation on their characteristics was performed in this study. The rate of sulfidation increased as the amount of copper oxide in the composite sorbent was raised. TPO experiments were carried out to investigate the characteristics of the regeneration of the sorbents with several different ratios of ZnO to CuO. Copper sulfate was formed at temperatures above 400 °C, while it was decomposed by pyrolysis above 700 °C. SO2 slipage due to CuSO4 was observed in the sorbent regenerated at temperatures above 600 °C. However, it was not observed when regenerated above 700 °C. It was confirmed in the ZnO-CuO mixed sorbent system that CuO suppressed the vaporization of ZnO on the on hand and ZnO minimized the SO2 slippage due to CuO on the other hand.

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  Cite this article

[IEEE Style]

J. YK, P. NK, J. JH, L. JD, R. SO, L. TJ, "A Study on Reactivity of ZnO-CuO Sorbent for Hot Gas Desulfurization," Clean Technology, vol. 9, no. 4, pp. 189-196, 2003. DOI: .

[ACM Style]

Jung YK, Park NK, Jun JH, Lee JD, Ryu SO, and Lee TJ. 2003. A Study on Reactivity of ZnO-CuO Sorbent for Hot Gas Desulfurization. Clean Technology, 9, 4, (2003), 189-196. DOI: .