Full Scale Evaluation and Suppression of Mercury Re-Emission in Wet Flue Gas Desulfurization System

Cheng Li Wu; Yan Cao; Han Xu Li; Wei Ping Pan

doi:10.4028/www.scientific.net/AMM.316-317.354

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 316-317Full Scale Evaluation and Suppression of Mercury...

Full Scale Evaluation and Suppression of Mercury Re-Emission in Wet Flue Gas Desulfurization System

Abstract:

The full-scale of PC/Cyclone Boilers with common wet flue gas desulfurization (WFGD) with limestone forced oxidation (LSFO) was studied. Ontario Hydro Method (OHM) recommended by the United States Environmental Protection Agency (USEPA) was used to determine mercury emission and speciation at these two full-scale WFGD systems, and OHM quality assurance/quality control (QA/QC) was followed during the field testing. WFGD re-emission problems were repeatedly observed at this unit. Selective catalytic reduction (SCR) had significant effects on mercury removal and Hg⁰ re-emission rates across WFGD. Effects of injection of continuous chemicals additive containing HS-, S^2- or I^- on mercury re-emission control were also conducted at this unit.

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Periodical:

Applied Mechanics and Materials (Volumes 316-317)

Pages:

354-357

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.316-317.354

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Online since:

April 2013

Authors:

Cheng Li Wu, Yan Cao, Han Xu Li, Wei Ping Pan

Keywords:

Additive Injection, Full-Scale Evaluation, Mercury Re-Emission, Wet FGD

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