Heterogeneous mercury reaction on a selective catalytic reduction (SCR) catalyst

Yujin Eom, Seok Ho Jeon, Thanh An Ngo, Jinsoo Kim, Tai Gyu Lee

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145 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)219-225
Number of pages7
JournalCatalysis Letters
Issue number3-4
Publication statusPublished - 2008 Mar

Bibliographical note

Funding Information:
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).

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)


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