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《Environmental Science & Technology》 2009-02
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Temperature Programmed and Thermostatic Desorption of Toluene Laden Activated Carbon by Microwave Radiation

CAO Xiao-qiang1, HUANG Xue-min1, LIU Sheng-rong2, CAO Li1, ZHAO Sheng-wei1, ZHUANG Jian-heng1 (1. Key Laboratory of Northwest Water Resource and Environmental Ecology of Ministry of Education,School of Environmental and Municipal Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China; 2.Qingdao Technological University,Qingdao 266520,China)  
By microwave heating,thermostatic desorption and temperature programmed desorption of activated carbon with toluene was studied. Operation parameters were temperature 400℃ for thermostatic while for temperature programmed,initial temperature was 100℃,and the temperature was added 10℃ every 10min,final temperature was 500℃ with holding time of 5min. Results indicated that for thermostatic desorption and temperature programmed desorption,the highest concentration of desorbed toluene was 56.7g/m3 and 28.7g/m3 respectively,which can both make more than 90% desorption efficiency in 45min. Energy consumption for the two methods were analyzed,result indicated that compared with thermostatic desorption at 400℃,the energy consumption of temperature programmed desorption can be reduced by 23.7%.
【Fund】: 陕西自然科学基金项目(2006E210);; 陕西教育厅专项科研计划项目(06JK269);; 西安建筑科技大学青年科技基金(QN0610)
【CateGory Index】: X701
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