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Environmental Engineering Research 2000;5(4): 213-222.
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DESIGN OF ENVIRONMENTAL CATALYSTS FOR VOC REMOVAL |
Son-Ki IHM† |
National Research Lab. for Environmental Catalysis, Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea |
Corresponding Author:
Son-Ki IHM , |
Received: June 14, 2000; Accepted: November 14, 2000. |
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ABSTRACT |
Environmental catalysis is a core concept to handle the environmental issues not only for end-of-pipe technology but also for cleaner technology. Air is increasingly contaminated with various pollutants, among which volatile organic compounds (VOC) have drawn recent attention since they are, like nitrogen oxides, known as potential causes of urban smog. Even though there are many approaches such as adsorption, condensation, absorption or combustion to solve the VOC problems, the catalytic routes will provide the ultimate solutions through complete destruction of VOCs. The concept of catalyst design will be introduced and its scope will be discussed for the necessary steps involved. Discussions were made for two examples; one for n-hexane combustion and the other for trichloroethylne decomposition. The nature of active site was investigated for the alumina-supported palladium catalyst in the oxidation of n-hexane, and the characteristics of the spinel-type cobalt chromite were studied as a novel catalyst for the decomposition of trichloroethylene. |
Keywords:
catalyst design | environmental catalysis | volatile organic compounds (VOC) |
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