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In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control

Author

Listed:
  • Juexiu Li

    (School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Hongbo Zhang

    (School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Diwen Ying

    (School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Yalin Wang

    (School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Tonghua Sun

    (School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

  • Jinping Jia

    (School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China)

Abstract

Volatile organic compounds (VOCs) emission from anthropogenic sources has becoming increasingly serious in recent decades owing to the substantial contribution to haze formation and adverse health impact. To tackle this issue, various physical and chemical techniques are applied to eliminate VOC emissions so as to reduce atmospheric pollution. Among these methods, non-thermal plasma (NTP) is receiving increasing attention for the higher removal efficiency, non-selectivity, and moderate operation, whereas the unwanted producing of NO 2 and O 3 remains important drawback. In this study, a dielectric barrier discharge (DBD) reactor with wedged high voltage electrode coupled CuO foam in an in plasma catalytic (IPC) system was developed to remove toluene as the target VOC. The monolith CuO foam exhibits advantages of easy installation and controllable of IPC length. The influencing factors of IPC reaction were studied. Results showed stronger and more stable plasma discharge in the presence of CuO foam in DBD reactor. Enhanced performance was observed in IPC reaction for both of toluene conversion rate and CO 2 selectivity compared to the sole NTP process at the same input energy. The longer the contributed IPC length, the higher the toluene removal efficiency. The toluene degradation mechanism under IPC condition was speculated. The producing of NO 2 and O 3 under IPC process were effectively removed using Na 2 SO 3 bubble absorption.

Suggested Citation

  • Juexiu Li & Hongbo Zhang & Diwen Ying & Yalin Wang & Tonghua Sun & Jinping Jia, 2019. "In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct C," IJERPH, MDPI, vol. 16(5), pages 1-14, February.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:5:p:711-:d:209572
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    References listed on IDEAS

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    1. Liying Jiang & Runye Zhu & Yubo Mao & Jianmeng Chen & Liang Zhang, 2015. "Conversion Characteristics and Production Evaluation of Styrene/ o -Xylene Mixtures Removed by DBD Pretreatment," IJERPH, MDPI, vol. 12(2), pages 1-17, January.
    2. Mehrnoosh Abtahi & Yadolah Fakhri & Gea Oliveri Conti & Margherita Ferrante & Mahmoud Taghavi & Javad Tavakoli & Ali Heshmati & Hassan Keramati & Bigard Moradi & Nazak Amanidaz & Amin Mousavi Khanegha, 2018. "The Concentration of BTEX in the Air of Tehran: A Systematic Review-Meta Analysis and Risk Assessment," IJERPH, MDPI, vol. 15(9), pages 1-16, August.
    3. Belaissaoui, Bouchra & Le Moullec, Yann & Favre, Eric, 2016. "Energy efficiency of a hybrid membrane/condensation process for VOC (Volatile Organic Compounds) recovery from air: A generic approach," Energy, Elsevier, vol. 95(C), pages 291-302.
    4. Feng Xiong & Qin Li & Bo Zhou & Jiongli Huang & Guiqiang Liang & Li’e Zhang & Shuyan Ma & Li Qing & Linhan Liang & Jing Su & Xiaowu Peng & Qin Li & Yunfeng Zou, 2016. "Oxidative Stress and Genotoxicity of Long-Term Occupational Exposure to Low Levels of BTEX in Gas Station Workers," IJERPH, MDPI, vol. 13(12), pages 1-9, December.
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