The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe₂O₃ Catalyst

ABSTRACT

The catalytic incineration of dimethyl sulfide and dimethyl disulfide [(CH₃)₂S and (CH₃)₂S₂] over an MnO/Fe₂O₃ catalyst was carried out in a bench-scale catalytic incinerator. Three kinetic models (i.e., 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 (CH₃)₂S and (CH₃)₂S₂. This suggests that the chemical adsorption of O₂ molecules is important in this incineration.