低温等离子体处理工业废气中甲苯的研究进展

Research Progress in Treatment of Toluene in Industrial Waste Gas by Non-thermal Plasma Technology

甲苯作为挥发性有机化合物的代表,其治理技术已成为研究的热点。介绍了低温等离子体的概况及其处理甲苯的机理,重点概述了单独低温等离子体技术处理甲苯的放电形式、放电参数以及低温等离子体协同催化技术处理甲苯的工艺、催化剂种类和放电模式,并对低温等离子体技术处理工业废气中甲苯的发展方向进行了展望。低温等离子体技术处理工业废气中甲苯的处理效率高,但选择性较差,通过协同催化技术,可以进一步提高选择性,具有很好的应用前景。

The control technology of toluene, the representative of volatile organic compounds, is becoming a hot spot of research. This paper briefly introduces the non-thermal plasma and the mechanism of the treatment of tolu- ene,summarizes the different forms of discharge and the discharge parameters of toluene treatment by non-thermal plasma alone,as well as the treatment technology and kinds of catalyst and different discharge modes of the plasma for toluene treatment by non-thermal plasma combined with catalyst. The paper also discusses the development di- rections of toluene treatment by non-thermal plasma technology. Though the non-thermal plasma technology is of high processing efficiency, its selectivity is poor. With the synergistic catalytic technology, the selectivity can be further improved,which has a good application prospect.