Effects of flue gas composition on the catalytic destruction of chlorinated aromatic compounds with a V-oxide catalyst

When using catalytic flue gas cleaning, several flue gas compounds may infl uence oxidation reactions of hazardous volatile organic compounds, possibly leading to lower reaction rates and, thus, to an uncomplete destruction. E xperimental investigations were performed with regard to the influence of s elected flue gas compounds, like hydrogen chloride, sulfur dioxide, oxygen, and water vapour, on the catalytic destruction behavior of chlorobenzenes under flue gas cleaning conditions of an incineration plant. For this purpo se, a metal oxide catalyst was operated at different temperatures at a spac e velocity of 3600 h(-1) in a laboratory-scale fixed bed reactor with model flue gases, and with real flue gases generated from the TAMARA waste incin eration plant. The results obtained from the studies with model flue gas we re analyzed with respect to reaction kinetics. These kinetics were applied for comparison with the experimental data gained in the real flue gas. (C) 2001 Elsevier Science Ltd. All rights reserved.