Field evaluation of Fourier transform infrared continuous emissions monitoring (FTIR CEM) systems

Thomas A. Dunder; Thomas J. Geyer; Laura L. Kinner; Grant M. Plummer

doi:10.1117/12.205557

10 February 1995 Field evaluation of Fourier transform infrared continuous emissions monitoring (FTIR CEM) systems

Thomas A. Dunder, Thomas J. Geyer, Laura L. Kinner, Grant M. Plummer

Proceedings Volume 2366, Optical Instrumentation for Gas Emissions Monitoring and Atmospheric Measurements; (1995) https://doi.org/10.1117/12.205557
Event: Optical Sensing for Environmental and Process Monitoring, 1994, McLean, VA, United States

Abstract

Recent environmental regulations, including the Clean Air Act and the Enhanced Monitoring Regulations, may require continuous emissions monitoring (CEM) of hazardous air pollutants (HAPs). A promising technique for this application is Fourier transform infrared spectroscopy (FTIR). FTIR spectroscopy can, in principle, be used to monitor virtually any gas phase species. Two evaluations of FTIR CEM systems are discussed. The first study, performed in 1993 - 94, compared two FTIR CEM systems on a side-by-side basis in an extended field test at two coal-fired electric power plants. The FTIR CEM systems monitored the legally mandated criteria pollutants and diluents (CO, CO₂, NO, NO₂, and SO₂) as well as H₂O. In addition, one system monitored two HAPs (HCl and HF) and NH₃. The FTIR CEM measurements were compared with those from the compliance CEM systems at the facilities. Several relative accuracy test audits were also performed to verify the FTIR CEM accuracy. The second evaluation was recently commenced on behalf of the Environmental Protection Agency. In this study, FTIR CEM systems are evaluated specifically for the monitoring of HAP species by conducting laboratory and field tests. The evaluation culminates in the development of proposed performance specifications and protocols for FTIR CEM systems.

Citation Download Citation

Thomas A. Dunder, Thomas J. Geyer, Laura L. Kinner, and Grant M. Plummer "Field evaluation of Fourier transform infrared continuous emissions monitoring (FTIR CEM) systems", Proc. SPIE 2366, Optical Instrumentation for Gas Emissions Monitoring and Atmospheric Measurements, (10 February 1995); https://doi.org/10.1117/12.205557

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