Complete Oxidation of Chlorinated Aromatic Compounds over Metal Oxide Composite Aerogel Catalysts
- Complete Oxidation of Chlorinated Aromatic Compounds over Metal Oxide Composite Aerogel Catalysts
- 서동진; 최진순
- Aerogel; Catalyst; Chlorinated Aromatic Compounds; Oxidation
- Issue Date
- The 21st North American Meeting of the Catalysis Society
- Many of polychlorinated aromatic compounds such as dioxins and furans have been
designated as human carcinogenic substances. Thermal disposal of wastes containing
chlorinated hydrocarbons often generates these man-made toxic substances. Demand for
detoxification of chlorinated compounds has gradually increased, but still sufficient removal
efficiency has not been achieved due to their chemical stability and resistance to degradation.
Photodegradation and biodegradation are relatively slow. Complete thermal
decomposition  consumes a great deal of energy. Hydrogenation  or oxidation 
produce unwanted byproducts such as aromatics or carbon monoxide. Up to now, a
commercial-scale disposal process has not been optimized in a either liquid or gaseous state.
This study concentrates on the disposal efficiency for catalytic oxidation of 1,2-
dichlorobenzene through a gaseous reaction over high-surface-area aerogel catalysts.
The unique properties of aerogels make them attractive as effective catalysts for the
oxidation of high molecular substances [4,5]. Here, we have conducted a gas-phase oxidation
of 1,2-dichlorobenzene that is one of the chemical precursors of 2,3,7,8-dioxin using vanadiatitania
and manganese oxide-titania composite aerogel catalysts.
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