Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Measurement of Flash Point for Binary Mixtures of Methanol, Ethanol, 1-propanol and Toluene

Methanol, Ethanol, 1-propanol 그리고 Toluene 이성분 혼합계에 대한 인화점 측정

  • Hwang, In Chan (Dept. of Chemical Engineering, Chungnam Univ.) ;
  • Kim, Seon Woo (Dept. of Fire and Disaster Protection Engineering, Woosong Univ.) ;
  • In, Se Jin (Dept. of Fire and Disaster Protection Engineering, Woosong Univ.)
  • 황인찬 (충남대학교 화학공학과) ;
  • 김선우 (우송대학교 소방방재학과) ;
  • 인세진 (우송대학교 소방방재학과)
  • Received : 2018.02.01
  • Accepted : 2018.02.21
  • Published : 2018.02.28
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Abstract

The flash point is one of the most important parameters used to characterize the ignition and explosion hazards of liquids. Flash points were measured for several binary systems containing toluene, including {methanol+toluene}, {ethanol+toluene}, and {1-propanol+toluene}. Experiments were performed according to the standard test method using a SETA closed cup flash point tester. The measured flash points were compared with the predicted values calculated using the following $G^E$ models: Wilson, NRTL, and UNIQUAC. The average absolute deviation between the predicted and measured lower flash point was less than 1.69 K.

인화점은 산업현장에서 액체의 화재 및 폭발 위험을 결정하는데 사용되는 가장 중요한 변수 중 하나로써 가연성 물질의 화재 위험성을 나타내는 지표이며 안정성 평가에 많이 사용되고 있다. 따라서 본 연구는 다양한 산업에서 용매로 사용되는 이성분계 혼합물 중 {methanol+toluene}, {ethanol+toluene} 그리고 {1-propanol+toluene}에 대한 인화점을 SETA 밀폐식 인화점 측정기를 이용하여 측정하였다. 각 이성분계 혼합물에 대한 인화점을 예측하기 위해 Raoult's의 법칙, Wilson, NRTL 및 UNIQUAC 파라미터를 이용하였고 실험 결과와 비교하였다. Raoult's의 법칙을 제외한 비교 결과, 모든 예측값과 실험값은 유사한 값을 보였고 편차가 1.69 K이내의 결과를 보였다.

Keywords

References

  1. D. A. Crowl and J. F. Louvar, "Chemical Process Safety: Fundamentals with Applications", Prentice Hall, Englewood Cliffs, N.Y. (1990).
  2. F. P. Lees, "Loss Prevention in the Process Industries", 2nd edition, Butterworth-Heinemann, Oxford, U.K. (1996).
  3. F. Lawrence, "Chemicals Used in the Rubber Industry", Springer Berlin Heidelberg, pp. 45-95 (1990).
  4. H. J. Manuel and W. Dierkes, "Rapra Review Report on Recycling of Rubber", Vol. 9, Report 99 (1997).
  5. H. J. Liaw, C. L. Tang and J. S. Lai, "A Model for Predicting the Flash Point of Ternary Flammable Solution of Liquid", Combust Flame, Vol. 138, pp. 308-319 (2004). https://doi.org/10.1016/j.combustflame.2004.06.002
  6. M. Vidal, W. J. Rogers and M. S. Mannan, "Prediction of Minimum Flash Point Behavious for Binary Mixtures", Process Safety and Environment Protection, Vol. 84, pp. 1-9 (2006). https://doi.org/10.1205/psep.05041
  7. G. M. Wilson and C. H. Deal, "Activity Coefficients and Molecular Structure", Ind. Chem. Fundam. Vol. 1, pp. 20-23 (1962).
  8. H. Renon and J. M. Prausnitz, "Local Compositions in Thermodynamic Excess Functions for Liquid Mixtures", AIChE J. Vol. 14, pp. 135-144 (1968). https://doi.org/10.1002/aic.690140124
  9. D. S. Abrams and J. M. Prausnitz, "A New Expression for the Excess Gibbs Energy of Partly or Completely Miscible Systems", AIChE J., Vol. 21, pp. 116-128 (1975). https://doi.org/10.1002/aic.690210115
  10. Dortmund Data Bank Software Package (DDBSP), "Version 2006 Professional", Software and Separation Technology GmbH (http://www.ddbst.de).
  11. National Fire Protection Association, "National Fire Codes, Vol. 7", Batterymarch Park, Quincy, MA (1985).
  12. American Society for Testing Materials, Annual Book of ASTM Standards, Vol. 6 (1999).
  13. I. S. Oh and S. J. In, "The Measurement and Prediction of Flash Point for Binary Mixtures of Methanol, Ethanol, 2-Propanol and 1-Butanol at 101.3 kPa", J. of Korean Institute Fire & Eng., Vol. 29, No. 5, pp. 1-6 (2015).
  14. S. J. In, "Flash Point for Binary Mixtures of Methylcyclohexane, n-Heptane and p-Xylene", J. Ind. Eng. Chem., Vol. 32, pp. 327-331 (2015). https://doi.org/10.1016/j.jiec.2015.09.013
  15. I. C. Hwang and S. J. In, "The Measurement of Flash Point for Binary Mixtures of Toluene, Methylcyclohexane, nheptane and Ethylbenzene at 101.3 kPa", J. of Korean Institute Fire & Eng., Vol. 31, No. 3, pp. 1-6 (2017).
  16. H. Le Chatelier, "Estimation of Firedamp by Flammability Limits", Ann Mines, Vol. 19, pp. 388-395 (1891).
  17. B. E. Poling, J. M. Prausnitz and J. P. O'connell, "The Properties of Gases and Liquids", 5th Edition, McGraw- Hill, N.Y. (2001).
  18. J. H. Oh, K. J. Han, D. B. Won and S. J. Park, "Vapor-liquid Equilibria for the Ternary Systems of MethylTert-Butyl Ether+Methanol+Benzene and Methyl Tert-butylether+Methanol+Toluene and Onstituent Binary Systems at313.15 K", Fluid Phase Equilib, Vol. 209, pp. 215-228(2003). https://doi.org/10.1016/S0378-3812(03)00085-2
  19. J. H. Oh and S. J. Park, "Isothermal vapor-Liquid Equilibria for Binary and Ternary Systems Containing Ethyl Tert- Butyl Ether, Ethanol, Benzene and Toluene at 313.15 K", J. Ind. Eng. Chem., Vol. 3, pp. 456-464 (2005).
  20. I. C. Hwang, S. J. Park, S. Y. Lee and H. S. Ahn, "Isothermal Vapor-liquid Equilibrium at 333.15 K and Excess Molar Volumes at 298.15 K for the Ternary System di-iso Propyl Ether+ n-propyl Alcohol+Toluene and Its Binary Subsystems", Fluid Phase Equilib, Vol. 270, pp. 103-108 (2008). https://doi.org/10.1016/j.fluid.2008.06.019