Catalytic Incineration of Volatile Organic Compounds

摘要

The catalytic incineration of benzene over Al2O3 supported metal catalysts in the temperature range of 150–400°C was investigated employing a fixed bed flow reactor. The efficacy of six different catalysts were tested for the catalytic incineration of aromatic hydrocarbons and Pt-Rh was found to be the most active. The use of Pt-Rh allowed nearly complete oxidation of benzene at 3000C within a short contact time. The experimental results showed that increase of weight % of Pt-Rh in the catalyst increased the rate of oxidation with 1% Pt-Rh showing the best results. Ceria (CeO2) has been reported to be a good oxidation catalyst. Experiments were carried out with Pt-Rh catalyst further moderated with CeO2. The results showed significant improvement in the incineration of aromatic hydrocarbons like benzene.