Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Measurement of Autoignition Temperature for Toluene + iso-Propanol (IPA) and p-Xylene+n-Butanol Systems

Toluene과 iso-Propanol계 및 p-Xylene과 n-Butanol계의 자연발화온도 측정

  • 윤여송 (서울산업대학교 에너지환경대학원) ;
  • 하동명 (세명대학교 보건안전공학과) ;
  • 유현식 (세명대학교 대학원 환경안전시스템공학과) ;
  • 이영순 (서울산업대학교 안전공학과)
  • Received : 2010.02.10
  • Accepted : 2010.04.16
  • Published : 2010.04.30
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Abstract

The values of the AIT (autoignition temperature) for fire and explosion protection are normally the lowest reported. The MAITB (Minimum Autoignition Temperature Behavior) of flammable liquid mixture is exhibited when the AITs of mixture is below the AIT of the individual components. The MAITB is an interesting experimental features, which can be significant from the perspective of industrial fire safety. In this study, the AITs of toluene + iso-propanol(IPA) and p-xylene + n-butanol systems were measured using ASTM E659-78 apparatus. The AITs of toluene, iso-propanol (IPA), pxylene and n-butanol which constituted two binary systems were $547^{\circ}C,\;463^{\circ}C,\;557^{\circ}C$ and $340^{\circ}C$ respectively. The toluene + iso-propanol(IPA) system is exhibited MAITB at 0.3 mole fraction of toluene, and its minimum autoignition temperature was $460^{\circ}C$.

가연성 혼합물의 최소자연발화온도 거동(MAITB, Minimum Autoignition Temperature Behavior)은 어떤 조성에서 두개의 순수물질 가운데 낮은 물질의 AIT보다 낮은 AIT를 갖는 현상을 말하며, 이는 위험물을 취급하는 공정에서 매우 관심있는 분야이다. 본 연구는 ASTM E659-78(Standard Test Method for Autoignition Temperature of Liquid Chemical)을 이용하여 toluene과 iso-propanol(IPA) 및 p-xylene과 n-butanol혼합물의 최소자연발화온도를 측정하였다. Toluene, IPA, p-xylene 그리고 n-butanol의 자연발화 온도는 각각 $547^{\circ}C,\;463^{\circ}C,\;557^{\circ}C,\;340^{\circ}C$였다. Toluene과 iso-propanol(IPA) 계의 경우는 3 : 7(Toluene :IPA) 비율의 혼합물 일 때는 IPA순수물질($464^{\circ}C$)보다 자연발화온도가 약 $3^{\circ}C$ 낮은 혼합물의 최소자연발화온도거동 MAITB(Minimum Autoignition Temperature Behavior)을 보였다.

Keywords

References

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