Cordierite-supported metal oxide for non-methane hydrocarbon oxidation in cooking oil fumes

摘要

Cooking emission is an important reason for the air quality deterioration in the metropolitan area in China. Transition metal oxide and different loading of manganese oxide supported on cordierite were prepared by incipient wetness impregnation method and were used for non-methane hydrocarbon (NMHC) oxidation in cooking oil fumes (COFs). The effects of different calcination temperature and different Mn content were also studied. The SEM photographs and CO2 temperature-programmed desorption revealed 5?wt% Mn/cordierite had the best pore structure and the largest number of the weak and moderate basic sites so it showed the best performance for NMHC oxidation. XRD analysis exhibited 5?wt% Mn/cordierite had the best dispersion of active phase and the active phase was MnO2 when the calcination temperature was 400? which were good for the catalytic oxidation of NMHC.