Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Measurements of Autoigniton Temperature(AIT) and Time Lag of BTX(Benzene, Toluene, Xylenes)

BTX(Benzene, Toluene, Xylenes)의 자연발화온도와 발화지연시간의 측정

  • Ha, Dong-Myeong (Department of Occupational Health and Safety Engineering, Semyung University)
  • 하동명 (세명대학교 보건안전공학과)
  • Published : 2006.06.30
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Abstract

The AITs(autoignition temperatures) describe the minimum temperature to which a substance must be heated, without the application of a flame or spark, which will cause that substance to ignite. The AITs are often used as a factor in determining the upper temperature limit for processing operations and conditions for handling, storage and transportation, and in determining potential fire hazard from accidental contact with hot surfaces. The measurement AITs are dependent upon many factors, namely initial temperature, pressure, volume, fuel/air stoichiometry, catalyst material, concentration of vapor, time lag. Therefore, the AITs reported by different ignition conditions are sometimes significantly different. This study measured the AITs of benzene, toluene and xylene isomers from time lag using AS1M E659-78 apparatus. The experimental ignition delay times were a good agreement with the calculated ignition delay times by the proposed equations wtih a few A.A.D.(average absolute deviation). Also The experimental AITs of benzene, toluene, o-xylene, m-xylene and p-xylene were $583^{\circ}C,\;547^{\circ}C,\;480^{\circ}C,\;587^{\circ}C,\;and\;557^{\circ}C$, respectively.

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References

  1. D. Drysdale, 'An Introduction to Fire Dynamics', 2nd ed., Jone WileyI & Sons, 1998
  2. M. G. Zabetakis, A. L. Furno and G. W. Jones, 'Minimum Spontaneous Ignition Temperature of Combustibles in Air', Industrial and Engineering Chemistry, Vol. 46, No. 10, pp. 2173-2178, 1954 https://doi.org/10.1021/ie50538a047
  3. W. A. Affens, J. E. Johnson and H. W. Carhart, 'Effect of Chemical Structure on Spontaneous Ignition of Hydrocarbon', J. of Chemical Engineering Data, Vol. 6, No. 4, pp. 613-619, 1961 https://doi.org/10.1021/je60011a041
  4. C. J. Hilado. and S. W. Clark, 'Autoignition Temperature of Organic Chemicals' Chemical Engineering, Vol. 4, pp. 75-80, 1972
  5. S. Yagyu, 'Systematization of Spontaneous Ignition Temperature of Organic Compounds-Spontaneous Ignition Temperature of Alkyl Alcohols-', Research Report of the Research Institute of Industrial Safety (RIIS-RR-26-5), Japan, 1978
  6. D. King, R. K. Eckhoff and F. Alfert, 'Autoignition of CH4/air, C3H8/air, CH4/C3H8/air and CH4/ CO2/air using 1L ignition Bomb', J. of Hazardous Materials, Vol. 40, pp. 68-84, 1995
  7. K. C. Smyth. and N. P. Bryner, 'Short-Duration Autoignition Temperature Measurement for Hydrocarbon Fuels Near Heated Metal Surfaces', Combustion Sci. and Tech., Vol. 126, pp. 225-253, 1997 https://doi.org/10.1080/00102209708935675
  8. M. M. Welzel, S. Schenk, M. Hau, H. K. Cammenga and H. Bothe, 'Ignition of Combustible/air Mixtures by Small Radiatively Heated Surfaces', J. of Hazardous Materials, Vol. A 72, pp. 1-9, 2000
  9. F-Y. Hshieh, D. B. Hirsh and J. H. Willams, 'Autoignition Temperature of Trichlorosilanes', Fire and Materials, Vol. 26, pp. 289-290, 2002 https://doi.org/10.1002/fam.804
  10. D. M. Ha, 'Measurement and Prediction of Autoignition Temperature(AIT) of Flammable Substances -Methanol and Ethanol-', J. of the Korean Society of Safety, Vol. 19, No. 2, pp. 54-60, 2004
  11. D. M. Ha, 'Relationship between Autoignition Temperature( AIT) and Ignition Delay Time for Acids', T. of the Korean Institute of Fire Sci. & Eng., Vol. 18, No. 2, pp. 27-33, 2004
  12. ASTM, 'ASTM E659-78, Standard Test Method for Autoignition Temperature of Liquid Chemicals', American Society for Testing Materials, Philadelpia, PA, 1994
  13. I. Goldfrab and A. Zinoviev, 'A Study of Delay Spontaneous Insulation Fires', Physics Letter, A 311, pp. 491-500, 2003
  14. G. E. P. Box and N. R. Draper, 'Empirical Model- Building and Response Surface', John-Wiley & Sons, Inc., 1987
  15. NFPA, 'Fire Hazard Properties of Flammable Liquid, Gases, and Volatile Solids', NFPA 325M, NFPA, 1991
  16. A. M. Kanury, 'SFPE Handbook of Fire Protection Engineering : Ignition of Liquid Fuels', 2nd ed., SFPE, 1995
  17. R. E. Lenga. and K. L. Votoupal, 'The Sigma Aldrich Library of Regulatory and Safety Data, Volume I-III', Sigma Chemical Company and Aldrich Chemical Company Inc., 1993
  18. G. S. Scott, G. W. Jones and F. E. Scott, 'Determination of Ignition Temperature of Combustible Liquids and Gases', Analytical Chemistry, Vol. 20, No. 3, pp. 238-241, 1948 https://doi.org/10.1021/ac60015a015
  19. J. L. Jackson, 'Spontaneous Ignition Temperature - Commercial Fluids and Pure Hydrocarbons-', Industrial and Engineering Chemistry, Vol. 43, No. 12, pp. 2869-2870, 1951 https://doi.org/10.1021/ie50504a058
  20. D. E. Swarts and M. Orchin, 'Spontaneous Ignition Temperature of Hydrocarbons', Industrial and Engineering Chemistry, Vol. 49, No. 3, pp. 432-436, 1957 https://doi.org/10.1021/ie51392a042