Environmental chamber measurements of mercury flux from coal utilization by-products

Journal Article · Fri May 01 00:00:00 EDT 2009 · Fuel

DOI:https://doi.org/10.1016/j.fuel.2008.11.004· OSTI ID:1014724

Pekney, Natalie J. ^[1]; Martello, Donald ^[2]; Schroeder, Karl ^[2]; Granite, Evan ^[2]

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1. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
2. ational Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)

An environmental chamber was constructed to measure the mercury flux from coal utilization by-product (CUB) samples. Samples of fly ash, FGD gypsum, and wallboard made from FGD gypsum were tested under both dark and illuminated conditions with or without the addition of water to the sample. Mercury releases varied widely, with 7- day experiment averages ranging from -6.8 to 73 ng/m(2) h for the fly ash samples and -5.2 to 335 ng/m(2) h for the FGD/wallboard samples. Initial mercury content, fly ash type, and light exposure had no observable consistent effects on the mercury flux. For the fly ash samples, the effect of a mercury control technology was to decrease the emission. For three of the four pairs of FGD gypsum and wallboard samples, the wallboard sample released less (or absorbed more) mercury than the gypsum.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Fossil Energy (FE)
• OSTI ID: 1014724
• Report Number(s): NETL-TPR-2142; PII: S0016236108004638
• Journal Information: Fuel, Vol. 88, Issue 5; ISSN 0016-2361
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
Mercury
Coal utilization by-products
Flux chamber
Fly ash
Wallboard
Terrestrial background surfaces
Air/Surface Exchange
Atomspheric Mercury
Elemental Mercury
Eastern USA
Fly-Ash
Soils
Emission
Release
Temperature.