한국연소학회지 (Journal of the Korean Society of Combustion)

  • 제22권4호
  • /
  • Pages.51-56
  • /
  • 2017
  • /
  • 1226-0959(pISSN)
  • /
  • 2466-2089(eISSN)
한국연소학회 (The Korean Society of Combustion)
권호 표지
DOI QR코드

DOI QR Code

산소부화된 메탄 예혼합 화염에서 CF4 분해에 대한 연구

The Investigation of CF4 Decomposition in Methane Premixed Flames on Oxygen Enrichment

  • 이기용 (국립안동대학교 기계공학과)
  • Lee, Ki Yong (Department of Mechanical Enginerring, Andong National University)
  • 투고 : 2017.10.10
  • 심사 : 2017.12.06
  • 발행 : 2017.12.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The decomposition of tetrafluoromethane has been investigated with the reaction mechanism proposed for freely propagating $CH_4/CF_4/O_2/N_2$ premixed flames on the oxygen enrichment. The factors affecting on the removal efficiency of tetrafluoromethane were analyzed. The increase in flame temperature due to oxygen enrichment has a great influence on the removal efficiency of tetrafluoromethane. At the same oxygen enrichment condition, the removal efficiency in the rich flame is higher than one in the lean flame. The increase of the F/H ratio leads to decrease the flame temperature and the removal efficiency of tetrafluoromethan is decreased at the flame temperature of 2600 K or lower, The elementary reactions that dominate the consumption of tetrafluoromethane are (R1) $CF_4+M=CF_3+F+M$ and (R2) $CF_4+H=CF_3+HF$. (R1) has the greatest effect on the consumption of tetrafluoromethane under the oxygen enhanced flames.

키워드

참고문헌

  1. K. Prevedouros, I.I. Cousins, R.C. Buck, and S. H. Korzeniowski, Source, fate and transport of perfluorocarboxylates, Environ. Sci. Technol., 40 (2006) 32-44. https://doi.org/10.1021/es0512475
  2. https://en.wikipedia.org/wiki/Tetrafluoro-methane.
  3. L. Jia and S. Ma, "The experimental study on high temperature air combustion and $CF_4$ decomposition," Proceedings of HT2005, 2005 ASME Summer Heat Transfer Conference, July 17-22, 2005, San Francisco, CA, USA, 705-708.
  4. I. Kawaguchi, W. Minami and H. Kim, "High efficiency PFCs gases decoposition by combustion method with assistance of catalyst and non-equilbrium plasma," Asian Pacific Confederation of Chemical Engineers congress program and abstracts, 2004, Session ID: 1P-06-004, http://doi.org/10.11491/apcche.2004.0.595.0.
  5. L. Qin, J. Han, G. Wang, H. Kim, and I. Kawaguchi, "Highly efficient decomposition of $CF_4$ gases by combustion," Scientific Research, Conference on environmental Pollution and Public Health 978-1-935-068-16-7, 2010.
  6. S. Choi, D. Park, and T. Watanabe1, "Thermal plasma decomposition of fluorinated greenhouse gases," Nuclear Engineering and Technology, 44 (2012) 21-32. https://doi.org/10.5516/NET.77.2012.003
  7. C.E. Baukal, Oxygen-ehanced combustion, CRC Press, 1998.
  8. D. Kim, Y. Lee. and W. Yang, Investigation on combustion characteristics of pressurized Oxy-fuel combustion system using low calorific value syngas, J. Korean Soc. Combust., 21(4) (2016) 39-47. https://doi.org/10.15231/jksc.2016.21.4.039
  9. CHEMKIN-PRO, Reaction Design Inc., San Diego, CA 92121, USA http://www.reactiondesign.com.
  10. D. R. Burgess, V. I. Babushok, G. T. Linteris and J. A. Manion, A Chemical Kinetic Mechanism for 2-Bromo-3,3,3-trifluoropropene (2-BTP) Flame Inhibition, Int. J. Chem. Kinet., 47 (2015) 533-563. https://doi.org/10.1002/kin.20923
  11. GRI-Mech Version 3.0 7/30/99, http://www.me.berkeley.edu/gri_mech/.
  12. K.Y. Lee, T.H. Nam, H.S. You, and D.S. Choi, The Flame Structure of Freely Propagating $CH_4/O_2/N_2$ Premixed Flames on the $O_2$ Enrichment, Trans. Korean Soc. Mech. Eng. B, 26 (2002) 555-560. https://doi.org/10.3795/KSME-B.2002.26.4.555
  13. T. Nagy and T. Yuranyi, Reduction of Very Large Reaction Mechanisms Using Methods Based on Simulation Error Minimization, Combust. Flame., 156 (2009) 417-428. https://doi.org/10.1016/j.combustflame.2008.11.001
  14. T. Noto, V. Babushok, A. Hamins and W. Tsang, Inhibition effectiveness of halogenated compounds, Combust. Flame., 112 (1998) 147-160. https://doi.org/10.1016/S0010-2180(97)81763-4
  15. W. Grosshandler, M. Donnelly, and C. Womeldorf, Lean flammability as a fundamental refrigerant property, NISTIR 6229, 1998.