Journal
ENVIRONMENTAL CHEMISTRY LETTERS
Volume 17, Issue 1, Pages 19-47Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-018-0771-2
Keywords
Flue gas; Hg-0 removal; Gas-solid heterogeneous oxidation; Sorbents or catalysts
Funding
- National Natural Science Foundation of China [U1710108]
- Jiangsu Six Personnel Peak Talent-Funded Projects [GDZB-014]
- China Postdoctoral Science Foundation [2017M610306]
- United States National Science Foundation (NSF) [CBET-0651811]
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Mercury is a toxic and persistent environmental pollutant which has been recognized as a global threat to human health and our ecosystem becausemercury bio-accumulates in the food chain and can be transformed into the more neurotoxic methylmercury. Among current and emerging abatement technologies for elemental mercury in flue gas, gas-solid heterogeneous oxidation is nowadays gaining increasing attention due to several inherent advantages. The catalysts and adsorbents are key materials that control the heterogeneous catalytic oxidation and adsorption of Hg-0 from flue gas. Herewe present a review of the recent developments on several catalysts and adsorbents, including noble metal-based catalysts, non-noble metal-based catalysts (transition metal oxides and selective catalytic reduction catalysts), activated carbon/coke-based sorbents, biochar-based sorbents, fly ash-based sorbents, mineral material-based sorbents and other novel catalysts. The key process parameters and kinetic reaction mechanisms and advantages and disadvantages of various emerging catalysts/adsorbents and technologiesof Hg-0 removal are described in detail. [GRAPHICS] .
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