Oxidation Removal of Elemental Mercury from Flue Gas by K₂S₂O₈

Abstract:

The important step for increasing gaseous elemental mercury (Hg⁰) removal in wet scrubber systems is altering the chemical form of the Hg⁰ to a water-soluble oxidized species. This work focuses on the removal of elemental mercury from simulated flue gas by aqueous K₂S₂O₈ in a bubble reactor. In the system of K₂S₂O₈ oxidize Hg⁰, the reaction velocity of K₂S₂O₈ and Hg⁰ is soon. Reached a higher removal rate after 10min. Increase the concentration of K₂S₂O₈ can remarkably improve the removal rate of Hg⁰to 85% With the rise of import mercury concentration has increased mercury removal rate to 89.5%.

• Periodical: Applied Mechanics and Materials (Volumes 209-211)
• Pages: 1549-1552
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.209-211.1549
• Online since: October 2012
• Authors: Sheng Yu Liu, Ping Liu, Li Chao Nengzi, Wei Qiu, Cheng Wei Lu
• Keywords: Flue Gas, K₂S₂O₈, Mercury, Oxidation, Removal

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