Long-path FTIR spectroscopic studies of air pollutants in the Danube refinery plant

B. Hren, K. Katona, J. Mink, J. Kohan, Gy Isaak

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An FTIR spectroscopic study of air samples originating from the residual waste collector and at the ventilation outlet of the wastewater sedimentation tank in the Danube refinery plant has been performed. On the basis of representative samples, the potential capabilities of FTIR spectroscopy have been demonstrated. Methane, benzene, toluene, xylenes, methyl tert-butyl ether and six aliphatic hydrocarbon species have been detected as major components. The dominating hydrocarbon component compound observed was 2-methylbutane. The detection limits established under our experimental conditions (special gas mixture) were below 1 ppm for the majority of compounds. Aliphatic hydrocarbons like n-propane, 2-methylbutane, isobutane (2-methylpropane), 2-methyl-2-butene and 2-methylbutane required much higher levels for detection. For these species there are no strong and non-overlapping spectral features available. Two ways of spectral subtractions in the strongly overlapping regions, 3200-2800 cm-1 and 1500-1300 cm-1, have been discussed in order to analyse long chain aliphatic hydrocarbons. It was established that the sequential auto-subtract method produced more reliable estimations of concentrations of hydrocarbons that the classical least squares procedure.

Original languageEnglish
Pages (from-to)1655-1659
Number of pages5
JournalThe Analyst
Volume125
Issue number9
DOIs
Publication statusPublished - 2000

Fingerprint

Air Pollutants
aliphatic hydrocarbon
Fourier Transform Infrared Spectroscopy
Hydrocarbons
Air
hydrocarbon
MTBE
propane
xylene
FTIR spectroscopy
Butanes
toluene
benzene
ventilation
Settling tanks
methane
Xylenes
Propane
sedimentation
Methane

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Long-path FTIR spectroscopic studies of air pollutants in the Danube refinery plant. / Hren, B.; Katona, K.; Mink, J.; Kohan, J.; Isaak, Gy.

In: The Analyst, Vol. 125, No. 9, 2000, p. 1655-1659.

Research output: Contribution to journalArticle

Hren, B. ; Katona, K. ; Mink, J. ; Kohan, J. ; Isaak, Gy. / Long-path FTIR spectroscopic studies of air pollutants in the Danube refinery plant. In: The Analyst. 2000 ; Vol. 125, No. 9. pp. 1655-1659.
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