Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Decomposition of HFCs using Steam Plasma

스팀 플라즈마를 이용한 HFCs 분해특성

  • Kim, Kwan-Tae (Department of Plasma Engineering, Korea Institute of Machinery & Materials) ;
  • Kang, Hee Seok (Department of Plasma Engineering, Korea Institute of Machinery & Materials) ;
  • Lee, Dae Hoon (Department of Plasma Engineering, Korea Institute of Machinery & Materials) ;
  • Lee, Sung Jin (Enpla Technologies, Inc.)
  • 김관태 (한국기계연구원 플라즈마연구실) ;
  • 강희석 (한국기계연구원 플라즈마연구실) ;
  • 이대훈 (한국기계연구원 플라즈마연구실) ;
  • 이성진 ((주)엔플라)
  • Received : 2012.09.18
  • Accepted : 2013.01.07
  • Published : 2013.02.28
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Abstract

CFCs (Chlorofluorocarbons) and HCFCs (Hydrochlorofluorocarbons) that are chemically stable were proven to be a greenhouse gases that can destroy ozone layer. On the other hand, HFCs (Hydrofluorocarbons) was developed as an alternative refrigerant for them, but HFCs still have a relatively higher radiative forcing, resulting in a large Global Warming Potential (GWP) of 1,300. Current regulations prohibit production and use of these chemicals. In addition, obligatory removal of existing material is in progress. Methods for the decomposition of these material can be listed as thermal cracking, catalytic decomposition and plasma process. This study reports the development of low cost and high efficiency plasma scrubber. Stability of steam plasma generation and effect of plasma parameters such as frequency of power supply and reactor geometry have been investigated in the course of the development. Method for effective removal of by-product also has been investigated. In this study, elongated rotating arc was proven to be efficient in decomposition of HFCs above 99% and to be able to generate stable steam plasma with steam contents of about 20%.

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References

  1. Bonarowska, M., B. Burda, W. Juszezyka, J. Pielaszek, K. Kowalczyk, and Z. karpinski (2001) Hydrodechlorination of $CCl_2F_2$ (CFC-12) over Pd-Au catalysts, Applied Catalysis B-Environmental, 35, 13-20. https://doi.org/10.1016/S0926-3373(01)00227-2
  2. Glocker, B., G. Nentwig, and E. Messerschmid (2000) 1-40kW steam respectively multi gas thermal plasma torch system, Vacuum, 59, 35-46. https://doi.org/10.1016/S0042-207X(00)00252-9
  3. Kim, D.-Y. and D.-W. Park (2008) Decomposition of PFCs steam plasma at atmospheric pressure, Surface & Coating Technology, 202, 5280-5283. https://doi.org/10.1016/j.surfcoat.2008.06.023
  4. Kim, K.-T., D.-H. Lee, J.-O. Lee, M.-S. Cha, and Y.-H. Song (2009) $CF_4$ Treatment Using an Elongated Arc Reactor, 19th International Symposium Plasma Chemistry, P1.3.20.
  5. Kim, K.-T., D.-H. Lee, J.-O. Lee, M.-S. Cha, and Y.-H. Song (2010) $CF_4$ Treatment Characteristics using an Elongated Arc Reactor, J. KOSAE, 26(1), 85-93. (in Korean with English abstract) https://doi.org/10.5572/KOSAE.2010.26.1.085
  6. Kim, S.-W., H.-S. Park, and H.-J. Kim (2003) 100 kW steam plasma process for treatment of PCBs (polychlorinated biphenyls) waste, Vacuum, 70, 59-66. https://doi.org/10.1016/S0042-207X(02)00761-3
  7. Kossyi, I.A., V.P. Silakov, and N.M. Tarasova (2001) Combustion of methane-oxygen and methane-oxygen-CFC mixtures initiated by a high current slipping surface discharge, Plasma Physics Reports, 27, 715-725. https://doi.org/10.1134/1.1390543
  8. Lee, C.-H. and Y.-N. Chun (2010) Development of a Plasma Water jet Scrubber for the Reduction of PFCs, J. KOSAE, 26(6), 624-632. (in Korean with English abstract) https://doi.org/10.5572/KOSAE.2010.26.6.624
  9. Lee, D.-H., K.-T. Kim, M.-S. Cha, and Y.-H. Song (2007) Optimization scheme of a rotating gliding arc reactor for partial oxidation of methane, Proc. Comb. Inst., 31, 3343-3351. https://doi.org/10.1016/j.proci.2006.07.230
  10. Molina, M.J. and F.S. Rowland (1974) Stratospheric sink for chlorofluoromethanes : chlorine atom catalyzed destruction of ozones, Nature, 249, 810-812. https://doi.org/10.1038/249810a0
  11. Murphy, A.B. and T. McAllister (1998) Destruction of ozonedepleting substances in a thermal plasma reactor, Applied Physics Letters, 73(4), 459-461. https://doi.org/10.1063/1.121899
  12. Narengerile, H. Saito, and T. Watanabe (2009) Decomposition of tetrafluoromethane by water plasma generated under atmospheric pressure, Thin Solid Films, 518, 929-935. https://doi.org/10.1016/j.tsf.2009.07.164
  13. Ohno, M., Y. Ozawa, and T. Ono (2007) Decomposition of HFC134a Using Arc Plasma, International Journal of Plasma Environmental Science & Technology, 1(2), 159-165.
  14. Sekine, Y., M. Haraguchi, M. Matsukata, and E. Kikuchi (2011) Low temperature steam reforming of methane over metal catalyst supported on $CexZr_1-xO_2$ in an electric field, Catalysis Today, 171, 116-125. https://doi.org/10.1016/j.cattod.2011.03.076
  15. Wang, H.P., S.H. Liao, K.S. Lin, Y.J. Huang, and H.C. Wang (1998) Pyrolysis of PU/CFCs wastes, Journal of Hazardous Materials, 58, 221-226. https://doi.org/10.1016/S0304-3894(97)00133-7
  16. Wang, Y.F., Y.S. You, C.H. Tsai, and L.C. Wang (2010) Production of hydrogen by plasma-reforming of methanol, Int. J. Hydro. Energy, 35, 9637-9640. https://doi.org/10.1016/j.ijhydene.2010.06.104
  17. Watanabe, T. and T. Tsuru (2008) Water plasma generation under atmosphere pressure for HFC destruction, Thin Solid Films, 516, 4391-4396. https://doi.org/10.1016/j.tsf.2007.10.062
  18. Yu, H., E.M. Kennedy, A.A. Adesina, and B.Z. Dlugogorski (2006) A review of CFC and halon treatment technologies- The nature and role of catalysts, Catalysis Surveys from Asia, 10(1), 40-54. https://doi.org/10.1007/s10563-006-9003-z

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