Verification results of jet resonance-enhanced multiphoton ionization as a real-time PCDD/F emission monitor

A jet resonance-enhanced multiphoton ionization (REMPI) monitor was tested on a hazardous-waste-fired boiler for its ability to determine concentrations of polychlorinated dibenzodioxins and dibenzofurans (PCDDs/Fs). Jet REMPI is a real-time instrument capable of highly selective and sensitive (from...

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Vydáno v:Journal of material cycles and waste management Ročník 10; číslo 1; s. 32 - 37
Hlavní autoři: Gullett, Brian, Oudejans, Lukas, Touati, Abderrahmane, Ryan, Shawn, Tabor, Dennis
Médium: Journal Article
Jazyk:angličtina
Vydáno: Tokyo Springer Japan 01.03.2008
Springer Nature B.V
Témata:
Air pollution
Air pollution control
Aromatic compounds
Civil Engineering
Correlation analysis
Dioxin
Emissions
Engineering
Environmental Management
Environmental monitoring
Environmental protection
Gases
Hydrocarbons
Ionization
Laboratories
Mass spectrometry
Methods
Monitor
PCDD
Pollution control
Pollution monitoring
Polychlorinated dibenzodioxins
Process controls
R&D
REMPI
Research & development
Resonance
Scientific imaging
Special Feature: Original Article
Steel pipes
Studies
Waste combustion
Waste Management/Waste Technology
PCDD/F
Monitor
Waste combustion
Dioxin
REMPI
ISSN:1438-4957, 1611-8227
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Shrnutí:A jet resonance-enhanced multiphoton ionization (REMPI) monitor was tested on a hazardous-waste-fired boiler for its ability to determine concentrations of polychlorinated dibenzodioxins and dibenzofurans (PCDDs/Fs). Jet REMPI is a real-time instrument capable of highly selective and sensitive (from parts per billion to parts per trillion) detection of a broad range of aromatic compounds, including a number of air toxic compounds. The PCDD/F toxic equivalency (TEQ) value was derived from a predetermined correlation ( R 2 = 0.74) with monochlorobenzene (MClBz). This relationship was applied to nine subsequent jet REMPI on-line measurements of MClBz and parallel, standard extractive sampling for PCDD/F TEQ. For high waste-firing rates, with a range of PCDD/F TEQ values between 3.9 and 6.0 ng TEQ/m 3 , the TEQ values predicted by jet REMPI had a relative difference of 26% with the standard EPA Method 23 results. At low waste-firing rates (0.9–1.6 ng TEQ/m 3 ), the relative difference increased to 219%. This limited testing shows that jet REMPI has promise as an on-line diagnostic monitor, providing feedback on the effects on PCDD/F emissions of operating parameter changes such as fuel feed interruptions or air pollution control failures.
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ISSN:1438-4957
1611-8227
DOI:10.1007/s10163-007-0195-8