Complete Oxidation of Chlorinated Aromatic Compounds over Metal Oxide Composite Aerogel Catalysts

Title
Complete Oxidation of Chlorinated Aromatic Compounds over Metal Oxide Composite Aerogel Catalysts
Authors
서동진최진순
Keywords
Aerogel; Catalyst; Chlorinated Aromatic Compounds; Oxidation
Issue Date
2009-06
Publisher
The 21st North American Meeting of the Catalysis Society
Abstract
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 [1] consumes a great deal of energy. Hydrogenation [2] or oxidation [3] 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.
URI
http://pubs.kist.re.kr/handle/201004/35453
Appears in Collections:
KIST Publication > Conference Paper
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