The kinetics of catalytic incineration of C2H5SH and (CH3)(2)S-2 over a Pt/Al(2)o(3) catalyst

Catalytic incineration is one of the cost-effective technologies to solve t he troublesome VOCs. However, some sulfur containing VOCs, such as ethyl me rcaptan and dimethyl disulfide, may deactivate the Pt catalyst that is comm only used in the catalytic incineration process. The catalytic incineration of these compounds over a Pt/Al2O3 catalyst was carried out in a bench sca le catalytic incinerator. There kinetic models, such as power-rate law, Mar s and Van Krevelen model, and Langmuir-Hinshelwood model were used to analy ze the results. A differential reactor design was used for best fit of kine tic models in this study. The results show that the Langmuir-Hinshelwood mo del is feasible to describe the catalytic incineration of both C2H5SH and ( CH3)(2)S-2. This suggests that the chemical adsorption of O-2 molecule is i mportant in the process of catalytic incineration of C2H5SH and (CH3)(2)S-2 .