Decomposition of chlorobenzene by thermal plasma processing

P. Fazekas, E. Bódis, A. M. Keszler, Z. Czégény, Sz Klébert, Z. Károly, J. Szépvölgyi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Decomposition of chlorobenzene as a model molecule of aromatic chlorinated compounds was studied in radiofrequency thermal plasma both in neutral and oxidative conditions. Optical emission spectroscopy was applied for the evaluation of the plasma excitation and molecular rotational-vibrational temperature. Atomic (C, H, O) and molecular (CH, OH, C2) radicals were identified, while the morphology of the formed soot was characterized by electron microscopy. Organic compounds adsorbed on the surface of the soot after plasma processing were comprised of various polycyclic aromatic hydrocarbons (PAH) and chlorinated PAH molecules. Their amount was greatly affected by experimental conditions, especially the oxygen content and plate power. The higher input power reduced the ring number of the PAH molecules. Addition of oxygen significantly reduced the amount of both PAHs chlorinated PAH molecules but enhanced the formation of polychlorinated benzene compounds.

Original languageEnglish
Pages (from-to)765-778
Number of pages14
JournalPlasma Chemistry and Plasma Processing
Volume33
Issue number4
DOIs
Publication statusPublished - Aug 2013

Fingerprint

Plasma Gases
Plasma applications
chlorobenzenes
thermal plasmas
Polycyclic Aromatic Hydrocarbons
polycyclic aromatic hydrocarbons
Polycyclic aromatic hydrocarbons
Decomposition
Soot
decomposition
Molecules
soot
Oxygen
molecules
Optical emission spectroscopy
Plasmas
Benzene
Organic compounds
aromatic compounds
Electron microscopy

Keywords

  • Chlorobenzene
  • Decomposition
  • Gas chromatography mass spectrometry
  • Optical emission spectroscopy
  • RF thermal plasma

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

Cite this

Decomposition of chlorobenzene by thermal plasma processing. / Fazekas, P.; Bódis, E.; Keszler, A. M.; Czégény, Z.; Klébert, Sz; Károly, Z.; Szépvölgyi, J.

In: Plasma Chemistry and Plasma Processing, Vol. 33, No. 4, 08.2013, p. 765-778.

Research output: Contribution to journalArticle

Fazekas, P. ; Bódis, E. ; Keszler, A. M. ; Czégény, Z. ; Klébert, Sz ; Károly, Z. ; Szépvölgyi, J. / Decomposition of chlorobenzene by thermal plasma processing. In: Plasma Chemistry and Plasma Processing. 2013 ; Vol. 33, No. 4. pp. 765-778.
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