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Heterogeneous Mercury Reaction on a Selective Catalytic Reduction (SCR) Catalyst

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Abstract

The heterogeneous mercury reaction mechanism, reactions among elemental mercury (Hg0) and simulated flue gas across laboratory-scale selective catalytic reduction (SCR) reactor system was studied. The surface of SCR catalysts used in this study was analyzed to verify the proposed reaction pathways using transmission electron microscopy with energy dispersive X-ray analyses (TEM-EDX) and X-ray photoelectron spectroscopy (XPS). The Langmuir–Hinshelwood mechanism was proven to be most suitable explaining first-layer reaction of Hg0 and HCl on the SCR catalyst. Once the first layer is formed, successive layers of oxidized mercury (HgCl2) are formed, making a multi-layer structure.

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Acknowledgements

This work was supported by grant No. (R01-2006-000-10007-0) from the Basic Research Program of the Korea Science & Engineering Foundation and by Ministry of Environment as the Eco-technopia 21 project (No. 2007-01003-0059-0).

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Authors and Affiliations

  1. Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul, 120-749, Republic of Korea

    Yujin Eom, Seok Ho Jeon & Tai Gyu Lee

  2. Department of Chemical Engineering, Kyung Hee University, 1 Sochen-ri, Giheung-eup, Yongin, Gyeonggi-do, 449-701, Republic of Korea

    Thanh An Ngo & Jinsoo Kim

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  1. Yujin Eom
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  2. Seok Ho Jeon
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  3. Thanh An Ngo
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  5. Tai Gyu Lee
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Correspondence to Tai Gyu Lee.

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Eom, Y., Jeon, S.H., Ngo, T.A. et al. Heterogeneous Mercury Reaction on a Selective Catalytic Reduction (SCR) Catalyst. Catal Lett 121, 219–225 (2008). https://doi.org/10.1007/s10562-007-9317-0

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  • DOI: https://doi.org/10.1007/s10562-007-9317-0

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