AI Article Synopsis
- Catalytic oxidation of benzene with ozone was studied using manganese oxides supported on different materials to determine what affects their performance.
- The oxidation rate of benzene was directly proportional to the catalyst's surface area, and SiO2-supported catalysts showed a higher ozone decomposition rate compared to those supported on Al2O3, TiO2, and ZrO2.
- The reaction rate and selectivity improved with higher temperatures (22-100°C) and the inclusion of water vapor, while increasing the concentration of ozone also enhanced benzene conversion and carbon balance.
Article Abstract
Catalytic oxidation of gaseous benzene with ozone was carried out over supported manganese oxides to investigate the factors controlling the catalytic activities. The rate for benzene oxidation linearly increased with the surface area of catalyst, regardless of the kinds of catalyst support, whereas the ratio of ozone decomposition rate to benzene oxidation rate was larger for SiO(2)-supported catalyst than Al(2)O(3)-, TiO(2)-, and ZrO(2)-supported catalysts. The rate for benzene oxidation and CO(x) selectivity increased with the reaction temperature (22-100 degrees C) and were improved by the addition of water vapor to reaction gases. Benzene conversion and carbon balance increased with ozone concentration.
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| http://dx.doi.org/10.1016/j.jhazmat.2008.09.032 | DOI Listing |
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