化工进展 ›› 2020, Vol. 39 ›› Issue (5): 1964-1973.DOI: 10.16085/j.issn.1000-6613.2019-1388

• 资源与环境化工 • 上一篇    下一篇

介质阻挡放电技术处理挥发性有机物的研究进展

李超()   

  1. 中国石油化工股份有限公司青岛安全工程研究院,山东 青岛 266000
  • 出版日期:2020-05-05 发布日期:2020-05-25
  • 通讯作者: 李超
  • 基金资助:
    中国石化重大科技项目(318010-1)

Research progress on VOCs degradation using dielectric barrier discharge plasma

Chao LI()   

  1. Sinopec Research Institute of Safety Engineering, Qingdao 266000, Shandong, China
  • Online:2020-05-05 Published:2020-05-25
  • Contact: Chao LI

摘要:

介质阻挡放电技术在处理低浓度挥发性有机物(VOCs)过程中具有反应快速、工艺简单及适应范围广等优点而受到广泛关注。本文从介质阻挡放电单独使用和介质阻挡放电协同催化两方面进行了概括总结。首先,简述了介质阻挡放电处理VOCs所用的驱动电源和等离子体发生器的研究现状及气体性质对VOCs降解性能的影响;其次,介绍了介质阻挡放电协同催化的两种方式(内置式和后置式)及各自情况下采用不同催化剂强化VOCs去除性能、提高能量效率、抑制副产物生成的过程机理;最后,分析了介质阻挡放电技术处理低浓度VOCs过程中存在的关键问题,并提出了未来的重要研究方向为:等离子体催化体系中VOCs的界面反应机理;催化剂的抗积碳性能的提高;适用于多组分VOCs的高效催化剂的开发。

关键词: 挥发性有机物, 介质阻挡放电, 催化

Abstract:

Dielectric barrier discharge (DBD) technology, which has the advantages of rapid reaction, simple device configuration and wide adaptability, has attracted much attention in the process of low concentrations of volatile organic compounds (VOCs) treatment. In this paper, the use of DBD alone and DBD synergistic catalysis were summarized, respectively. Firstly, the current situation of plasma power source and plasma generator used in DBD process was briefly introduced. And the influence of gas properties on VOCs degradation was described. Secondly, two patterns of DBD synergistic catalysis (in plasma-catalysis and post plasma-catalysis) are presented. The mechanism of employing different catalysts to enhance VOCs removal performance, improve energy efficiency, and inhibit the formation of by-products was clarified. Finally, the key problems in DBD process in low concentrations of VOCs treatment are indicated. The future research directions were also proposed, i.e., the interfacial reaction mechanism of VOCs in plasma catalytic systems, the enhancement of carbon deposition resistance of catalysts, high-efficiency catalysts development for multi-component VOCs.

Key words: volatile organic compounds, dielectric barrier discharge, catalyze

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