Mixture Effects in the Catalytic Oxidation of VOCs (Volatile Organic Compounds) in Air

摘要

The report gives results of a study of the deep oxidation of organic mixtures over a heterogeneous catalyst in an attempt to explain earlier observations concerning the apparent inhibition or enhancement of destruction of some components to establish a scientific basis for the design and operation of catalytic incineration systems for volatile organic compound (VOC) control. The Mars/van Krevelen (MVK) reaction rate model satisfactorily represented the results for some single organic compounds at lower temperatures. By incorporating pore diffusion effects, the MVK model adequately explains the single component data over the entire temperature range for some of the compounds. A multicomponent MVK model incorporating competitive adsorption effects is moderately successful in predicting the observed behavior for a binary mixture of benzene and n-hexane.