Abstract

Aromatic volatile organic compounds (VOCs) proved to have enhanced polluting behavior upon the atmosphere and human health. Their catalytic destruction is an alternative for environmental pollution reduction in the case of gaseous emissions with low contents of VOC.

In this paper, an experimental study is presented, concerning the conversion of benzene and its mono-halogenated derivatives on SCR-DeNOx (V2O5-WO3/TiO2) commercial catalyst, specific for the reduction process of nitrogen oxides. The catalytic oxidation was carried out at temperatures ranged between 423 0K - 623 0K in different reaction environments (air, water vapors and halogenated acids) and for low concentrations of aromatic organic pollutants (< 100 ppm). The catalytic conversion of aromatic organic volatile compounds increases with temperatures and is influenced by the presence of water vapors and halogenated acids.

It can reach values of above 75%, for a temperature of 623 0K. The reaction of catalytic oxidation is incomplete and leads to CO formation.