On-line measurement of chlorobenzene in waste incineration flue gas as a surrogate for the emission of polychlorinated dibenzo-p-dioxins/furans (I-TEQ) using mobile resonance laser ionization time-of-flight mass spectrometry
✍ Scribed by Ralf Zimmermann; Hans Jörg Heger; Martin Blumenstock; Ralph Dorfner; Karl-Werner Schramm; Ulrich Boesl; Antonius Kettrup
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 217 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0951-4198
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✦ Synopsis
Mobile resonance-enhanced multiphoton ionization time-of-flight mass spectrometry (REMPI-TOFMS) was applied for on-line detection of surrogates for polychlorinated dibenzo-p-dioxins/furans (PCDD/F) in the flue gas of an industrial hazardous waste incineration plant (thermal power: 22 MW). Conventional gas chromatography/mass spectrometry (GC/MS) measurements have been performed to establish an indicator relation between the best suited surrogate (monochlorobenzene) and the PCDD/F concentration in the flue gas (measured in international toxicity equivalents, I-TEQ). The indicator relation allows the estimation of the actual PCDD/F emission from the on-line registered MCBz signal. Furthermore, several other aromatic components have been measured on-line. During transient instabilities of the combustion conditions, e.g. due to barrel uptake, highly dynamic changes in the emission profiles of substituted benzenes and polycyclic aromatic hydrocarbons (PAH) were observed.