The selective catalytic oxidation of volatile organic solvents (benzene, toluene, ethylbenzene, xylene, and styrene) and their mixtures was studied on a 0.5% Pt / γ-Al2O3 catalyst at temperatures ranging from 160 ~ 350 ℃. An approach based on the two-stage redox model was used to analyze the results. The deep conversion of the aromatic solvents increased as the inlet concentration decreased and the reaction temperature increased. The reactivity increased in order benzene > toluene > ethylbenzene > xylene > styrene. The kinetic parameters of the multicomponent model were independently evaluated from single compound oxidation experiments. In a mixture, remarkable effects on the reaction rate and selectivity were observed; the strongest inhibition effect was shown by styrene and increased in the reverse to that of reactivity. The inhibition effect increased in order styrene > toluene > benzene. The selective oxidation revealed that there was a competition between the two reactants for the oxidized catalyst. Therefore, proper operating conditions in a commercial process must take account of the inhibition effect.