Volume 28, Number 3, April 2000Odours
|Page(s)||228 - 232|
Monitoring of radical thermocatalyzed breakdown of polychlorinated compoundsA. Bacaloni1, F. Benvenuti2, R. Curini1, A. Gentili1 and S. Materazzi1
1 Dept. of Chemistry, University "La Sapienza", Rome, Italy
2 I.S.P.E.S.L., Rome, Italy
(Received September 20, 1999; revised March 2, 2000; accepted March 8, 2000.)
Disposal of polychlorobiphenyls (PCBs) is a current problem still far from a really satisfactory solution. Because of the wide use and the chemical inactivity, the PCB amount to be treated is considerably large. In this paper, the setting-up of a methodical catalytic pyrolysis of polychlorinated compounds is proposed. The monitoring of the final decomposition products by analytical techniques, such as GC and coupled TG-FTIR, allowed to optimize the reaction temperature: the encouraging results, the lower operative temperatures with respect to previous systems and the favourable prospects regarding the environmental impact make this methodology open to practical applications at a relative low cost.
Key words: Thermocatalyzed breakdown -- polychlorinated compounds -- radical oxidation.
© EDP Sciences, Wiley-VCH 2000