The kinetics of catalytic incineration of styrene over a MnO/Fe₂O₃ catalyst

Catalytic incineration is one of the cost-effective technologies to deal with unwanted volatile organic compounds (VOCs). Catalytic incineration of styrene over a MnO/Fe₂O₃ catalyst was carried out in a bench scale catalytic incinerator. Three kinetic models, the power-rate law, the Mars and van Krevelen model and the Langmuir-Hinshelwood model were used to analyze the results. A differential reactor design was used for best fit of kinetic models in this study. The results show that the Langmuir-Hinshelwood model may be feasible to describe the catalytic incineration of styrene. This suggests that the chemical adsorption of either O₂ molecules or O atoms is important in the process of catalytic incineration of styrene.