Experimental studies of removing typical VOCs by dielectric barrier discharge reactor of different sizes |
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| Institution: | 1. College of Chemical and Environmental Engineering, SDUST, Qingdao, Shandong 266590, China;2. School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang 832003, China;3. Collaborative Innovation Center for Marine Biomass Fibers, Qingdao University, Qingdao 266071, China;1. Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University, Taipei, Taiwan;2. Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan;3. Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, USA;4. Center for Air Resources Engineering and Science and Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, NY, USA;5. Department of Public Health, National Taiwan University, Taipei, Taiwan;6. Institute of Environmental Health, National Taiwan University, Taipei, Taiwan;1. Department of Chemistry, Tsinghua University, Beijing 100084, China;2. Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China;1. School of Environmental and Safety Engineering, Changzhou University, Changzhou 213100, PR China;2. School of Chemistry and Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China;3. Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, PR China |
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| Abstract: | This research conducted both lab-scale and pilot-scale tests by selecting toluene as the typical volatile organic compounds (VOCs) and by using the promising non-thermal plasma oxidation technology – dielectric barrier discharge (DBD). To develop baseline engineering data to demonstrate the feasibility of application of self-made DBD reactors, the peak voltage, gas flow speed, initial toluene concentration, discharge frequency and duty ratio were studied. The results showed that toluene removal efficiency improves with increase of electrical voltage, frequency and duty ratio, and declines with increase of polar distance, gas flow speed and toluene initial concentration. When the voltage increases, the energy efficiency rises first and then drops. The energy efficiency reaches the climax when the energy density reaches 150.8 J/L and 101.7 J/L in the lab-scale experiment and pilot-scale experiment respectively. |
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| Keywords: | Non-thermal plasma Volatile organic compounds Dielectric barrier discharge Energy efficiency Energy density Toluene removal efficiency |
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