Water Plasma Generation Under Atmospheric Pressure for Waste Treatment

https://doi.org/10.22146/ajche.50161

Takayuki Watanabe(1*)

(1) Research Laboratory for Nuclear Reactors Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8550 JAPAN
(*) Corresponding Author

Abstract


DC lOO%-steam plasma characteristics were investigated for the application of halogenated hydrocarbon decomposition because steam plasmas are chemically reactive. However, plasma system generally requires complex subsystems such as steam generators and cooling units. The presented steam plasma system is a portable light-weight plasma generation system that does not require any gas supply unit. The system has high-energy efficiency because it does not need additional cooling water. Electrodes of high durability are required for a DC lOO%-steam plasma because the electrodes are exposed to reactive conditions. Thus, the electrode's characteristics were also investigated under different configurations and conditions. Keywords: CFC decomposition, halon decomposition, steam plasma, thermal plasma, and waste treatment.

Keywords


CFC decomposition, halon decomposition, steam plasma, thermal plasma, and waste treatment

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References

  1. Bessho, M. (2000). "Chlorofluorocarbon decomposition system using microwave plasmas," Mitsubishi Heavy Industries Technical Review, 37, 90.

  2. Glocker, B., Nentwing, G., and Messerschmid, E. (2000). “1-40 kW stream respectively multi gas thermal plasma torch system," Vacuum, 59, 35.

  3. Hrabovsky, M. (1998). "Water-stabilized plasma generators," Pure & Appl. Chem., 70, 1157.

  4. Kim, S. W., Park, H. S., and Kim, H. J. (2003). "100 kW steam plasma process for treatment of PCB wastes," Vacuum, 70,50.

  5. Murphy, A, B. (2003). "Destruction of ozone depleting substances by thermal plasmas: Technology, chemistry and modeling," Proceedings of 16th International Symposium on Plasma Chemistry, ISPC 492.

  6. Takeuchi, S., Takeda, K, Uematsu, N., Komaki, H., Asakura, T., Mizuno, K., Wakabayashi, T., and Yoshida, T. (1995). *Thermodynamic considerations on the stability of RF plasma in the chlorofluorocarbon decomposition process using steam," Proceedings of 12th International Symposium on Plasma Chemistry, 2, 1021.

  7. Watanabe, T., and Shimbar, S. (2003). "Halogenated hydrocarbon decomposition by steam thermal plasmas," High Temperature Materials Processes, 7, 455.



DOI: https://doi.org/10.22146/ajche.50161

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ASEAN Journal of Chemical Engineering  (print ISSN 1655-4418; online ISSN 2655-5409) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada.