Mercury emissions from a 100-MW wall-fired boiler as measured by semicontinuous mercury monitor and Ontario Hydro Method

Shawn Kellie, Yufeng Duan, Yan Cao, Paul Chu, Arun Mehta, Ron Carty, Kunlei Liu, Wei Ping Pan, John T. Riley

Research output: Contribution to journalConference articlepeer-review

42 Scopus citations

Abstract

Western Kentucky University (WKU) recently established a mobile laboratory for monitoring mercury emissions (MMEML). The lab contains facilities to perform both continuous emissions monitoring and the Ontario Hydro Method for mercury analysis. Among the instruments available in the lab are a semicontinuous mercury emissions monitor (SCEM), pretreatment and speciation unit for the SCEM, and an atomic absorption spectrometer with automated sampler. The MMEML was recently utilized at a power plant site that had a 100-MW, wall-fired combustor with low-NOx burners. At this site, a comparison between OHM and SCEM data was possible for testing locations before and after the ESP. OHM and SCEM produced analogous results for the measurement of total mercury, but differ in their measurement of mercury speciation. Testing by OHM also showed that vapor-phase mercury decreases as temperature decreases and as fly ash is removed. Our results suggest that the removal of vapor-phase mercury by fly ash is mostly the removal of oxidized mercury.

Original languageEnglish
Pages (from-to)487-499
Number of pages13
JournalFuel Processing Technology
Volume85
Issue number6-7
DOIs
StatePublished - Jun 15 2004
EventAir Quality III: Mercury, Trace Elements and Particulate Matters - Arlington, VA., United States
Duration: Sep 9 2002Sep 12 2002

Bibliographical note

Funding Information:
This paper was prepared by Western Kentucky University research group with support, in part, by grants made possible by the Illinois Department of Commerce and Community Affairs through the Office of Coal Development and the Illinois Clean Coal Institute and Electric Power Research Institute. Neither Western Kentucky University nor the Illinois Department of Commerce and Community Affairs, Office of Coal Development, the Illinois Clean Coal Institute, nor any person acting on behalf of either (A) makes any warrant of representation, express or implied, with respect to the accuracy, completeness, or usefulness of the information contained in this paper, or that the use of any information, apparatus, method, or process disclosed in this paper may not infringe privately owned rights, or (B) assumes any liabilities with respect to the use of, or for damages resulting from the use of, any information, apparatus, method or process disclosed in this paper. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily state or reflect those of the Illinois Department of Commerce and Community Affairs, Office of Coal Development, or the Illinois Clean Coal Institute.

Keywords

  • MMEML
  • Ontario Hydro Method
  • SCEM

ASJC Scopus subject areas

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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