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Chemosphere

Title:		Microwave-induced combustion of volatile organic compounds in an industrial flue gas over the magnetite fixed-bed
Author(s):		Lee BN; Ying WT; Shen YT;
Address:		"Department of Leisure and Recreation Management, Kao-Fong College, Pingtung, Taiwan, ROC. bnlee@mail.tajen.edu.tw"
Journal Title:		Chemosphere
Year:		2007
Volume:		20070904
Issue:		11
Page Number:		1821 - 1826
DOI:		10.1016/j.chemosphere.2007.05.030
ISSN/ISBN:		0045-6535 (Print) 0045-6535 (Linking)
Abstract:		"A modified domestic microwave oven was applied to heat a magnetite (Fe(3)O(4)) fixed-bed for continuous decomposition of volatile organic compounds (VOCs), such as acetone, n-hexane, and dichloromethane (DCM), in a simulated flue gas which contains VOCs equivalent to 2000 ppmv as DCM. Experimental results revealed that effect of the addition of water to the inlet stream on decomposition of DCM in the overall experiment was insignificant. Bulk temperature of the Fe(3)O(4) fixed-bed was also found to reach 600 degrees C from an initial room temperature by 6.5 min under microwave radiation, even though the inlet gas was at a high gas hourly space velocity of 5240 h(-1) and a high relative humidity of 75%. Moreover, the VOCs in the inlet stream could be decomposed completely over the Fe(3)O(4) fixed-bed by microwave heating at a power level of 645 W at heating time of 10 min. The conversion of VOCs is stable when the Fe(3)O(4) fixed-bed has been heated longer than 10 min with microwave radiation. The microwave-induced heating upon Fe(3)O(4) fixed-bed processing appears to be not only an energy efficient technique for air pollutions treatment but also a promising technology for variety of VOCs in a flue gas from industrial factory being decomposed simultaneously and completely"
Keywords:		Adsorption Air Pollutants/*analysis Ferrosoferric Oxide/*chemistry Gases/analysis *Incineration Industrial Waste/*analysis *Microwaves Organic Chemicals/*analysis Volatilization;
Notes:		"MedlineLee, Bing-Nan Ying, Wai-Tsen Shen, Yao-Ting eng Research Support, Non-U.S. Gov't England 2007/09/05 Chemosphere. 2007 Nov; 69(11):1821-6. doi: 10.1016/j.chemosphere.2007.05.030. Epub 2007 Sep 4"