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Plasma Sci. Technol. ›› 2018, Vol. 20 ›› Issue (9): 095501.doi: 10.1088/2058-6272/aac203

• Plasma Technology • Previous Articles     Next Articles

Effects of nitrogen on ozone synthesis in packed-bed dielectric barrier discharge

Yuchuan QIN (秦豫川) 1 , Shulou QIAN (钱树楼) 2 , Cheng WANG (王城) 1 and Weidong XIA (夏维东)   

  

  1. 1 School of Engineering Science, University of Science and Technology of China, Hefei 230022, People’s Republic of China 2 Heifei Aipuli Plasma Ltd Company, Hefei 230088, People’s Republic of China
  • Received:2018-02-10 Published:2018-04-28
  • Supported by:

    This work is supported by National Natural Science Foun- dation of China (No. 11675177) and Anhui Province ST program (No. 1604a0902).

Abstract:

The effects of nitrogen on ozone synthesis are studied in a coaxial cylinder generator with dielectric barrier discharge (DBD) and pack-bed dielectric barrier discharge (PB-DBD). A series of 10 h discharge experiments are conducted adopting a bare stainless electrode and bare copper electrode. Results show that the material of the electrode can affect the ozone synthesis. It is inferred that the ozone zero phenomenon (OZP) may be induced from ozone decomposing by metallic oxide catalysis. Packing dielectric particles can reduce the OZP. Adding a certain amount of nitrogen into the oxygen feed gas can further eliminate the OZP, and increase the ozone concentration significantly, but decreases the maximum energy efficiency of ozone generators. Initial analysis indicates that the optimal proportion of nitrogen addition is inversely related to the average reduced electric field strength in the discharge region.

Key words: ozone synthesis, ozone zero phenomenon, nitrogen, packed-bed dielectric barrier discharge