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SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2023, Vol. 60 ›› Issue (8): 61-68.DOI: 10.1016/j.cjche.2022.11.016

• Full Length Article • 上一篇    下一篇

Improvement in discharge characteristics and energy yield of ozone generation via configuration optimization of a coaxial dielectric barrier discharge reactor

Chuang Liang1,2, Zhihao Liu1,2, Baochang Sun1,2, Haikui Zou2, Guangwen Chu1,2   

  1. 1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
  • 收稿日期:2022-10-05 修回日期:2022-11-21 出版日期:2023-08-28 发布日期:2023-10-28
  • 通讯作者: Baochang Sun,E-mail:sunbc@mail.buct.edu.cn;Guangwen Chu,E-mail:chugw@mail.buct.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (21725601 and 2187081058).

Improvement in discharge characteristics and energy yield of ozone generation via configuration optimization of a coaxial dielectric barrier discharge reactor

Chuang Liang1,2, Zhihao Liu1,2, Baochang Sun1,2, Haikui Zou2, Guangwen Chu1,2   

  1. 1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2022-10-05 Revised:2022-11-21 Online:2023-08-28 Published:2023-10-28
  • Contact: Baochang Sun,E-mail:sunbc@mail.buct.edu.cn;Guangwen Chu,E-mail:chugw@mail.buct.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21725601 and 2187081058).

PDF (PC)

摘要： Dielectric barrier discharge (DBD) has been widely employed in ozone generation. However, the technology still exhibits relatively low energy yield (EY) referring to its theoretical value. In this work, EY of ozone generation was improved by optimizing the mesh number, electrode length, and dielectric material in a coaxial DBD reactor with two wire mesh electrodes. Meanwhile, the discharge characteristics were investigated to elucidate the effect of reactor configuration on EY. Results showed that the discharge characteristics were improved by increasing the mesh number, electrode length, and relative permittivity. When the mesh number was increased from 40 to 100, an improvement of approximately 48% in EY was obtained. Additionally, higher EY values were obtained using corundum as the dielectric material relative to polytetrafluoroethylene and quartz. Ultimately, EY in the optimal DBD reactor could reach 326.77 g·(kW·h)-1. Compared with the reported DBD reactor, the coaxial DBD reactor with the mesh electrode and the dielectric material of corundum could effectively improve EY, which lays a foundation for the design of high-efficiency coaxial DBD reactor.

关键词: Coaxial DBD reactor, Configuration optimization, Ozone generation, Discharge characteristics, Energy yield

Abstract: Dielectric barrier discharge (DBD) has been widely employed in ozone generation. However, the technology still exhibits relatively low energy yield (EY) referring to its theoretical value. In this work, EY of ozone generation was improved by optimizing the mesh number, electrode length, and dielectric material in a coaxial DBD reactor with two wire mesh electrodes. Meanwhile, the discharge characteristics were investigated to elucidate the effect of reactor configuration on EY. Results showed that the discharge characteristics were improved by increasing the mesh number, electrode length, and relative permittivity. When the mesh number was increased from 40 to 100, an improvement of approximately 48% in EY was obtained. Additionally, higher EY values were obtained using corundum as the dielectric material relative to polytetrafluoroethylene and quartz. Ultimately, EY in the optimal DBD reactor could reach 326.77 g·(kW·h)-1. Compared with the reported DBD reactor, the coaxial DBD reactor with the mesh electrode and the dielectric material of corundum could effectively improve EY, which lays a foundation for the design of high-efficiency coaxial DBD reactor.

Key words: Coaxial DBD reactor, Configuration optimization, Ozone generation, Discharge characteristics, Energy yield

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