• Title/Summary/Keyword: 인화점

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Study on the Flash Point and Spontaneous Ignition Determination of 2-Propanol and O-xylene Mixtures (2-프로판올과 O-xylene 혼합물질의 인화점과 자연발화 측정에 관한 연구)

  • Kim, Tae-Young;Mok, Yeon-Su;Choi, Jae-Wook
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2011.11a
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    • pp.360-363
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    • 2011
  • 본 연구는 2-Propanol과 O-xylene의 혼합물의 인화점과 자연발화에 관한 연구이다. 인화점의 경우 2-Propanol과 O-xylene의 혼합비를 변화하여 측정하였으며, 2-Propanol은 $12^{\circ}C$를 구하였고, O-xylene는 $32^{\circ}C$를 구하였다. 자연발화의 경우 2-Propanol과 O-xylene의 농도를 변화시켜 혼합한 시료를 만들어 최저발화온도와 순간발화온도를 측정하였다.

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Pensky-Martens 측정 장치를 이용한 n-Propanol-n-Propionic Acid 계의 인화점

  • 최용찬;이성진;하동명
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 2002.11a
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    • pp.178-183
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    • 2002
  • 화학공정설계에 있어 온도, 압력, 농도 등에 대한 운전 범위와 반응물, 중간생성물, 생성물 및 부산물에 대한 물성치인 물리적 및 화학적 특성, 안전성, 독성 등을 파악하는 것이 무엇 보다 중요하다. 공정상에서 가연성물질의 생산, 처리, 수송, 저장할 때 취급 부주의로 화재 및 폭발이 야기될 수 있다. 따라서 가연성물질의 안전한 취급을 위해서는 이들 물질의 중요한 기초적인 안전특성(safety property) 자료인 인화점(flash point)에 대한 지식을 필요로 한다.(중략)

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The Measurement and Prediction of Flash Point for Binary Mixtures of Methanol, Ethanol, 2-Propanol and 1-Butanol at 101.3 kPa (Methanol, Ethanol, 2-Propanol 그리고 1-Butanol 이성분 혼합계에 대한 101.3 kPa에서의 인화점 측정 및 예측)

  • Oh, In Seok;In, Se Jin
    • Fire Science and Engineering
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    • v.29 no.5
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    • pp.1-6
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    • 2015
  • Flash point is one of the most important variables used to characterize fire and explosion hazard of liquids. The lower flash point data were measured for the binary systems {methanol + 1-butanol}, {ethanol + 1-butanol} and {2-propanol + 1-butanol} at 101.3 kPa. Experiments were performed according to the standard test method (ASTM D 3278) using a SETA closed cup flash point tester. The measured flash points were compared with the predicted values calculated using the following activity coefficient models: Wilson, Non-Random Two Liquid (NRTL), and UNIversal QUAsiChemical (UNIQUAC). The measured FP data agreed well with the predicted values of Raoult's law, Wilson, NRTL and UNIQUAC models. The average absolute deviation between the predicted and measured lower FP was less than 1.14 K.

Measurement and Investigation of Combustible Characteristics for Risk Assessment of Toluene (톨루엔의 위험성 평가를 위한 연소특성치 측정 및 고찰)

  • Ha, Dong-Myeong;Jeong, Kee-Sin
    • Fire Science and Engineering
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    • v.24 no.2
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    • pp.76-81
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    • 2010
  • For the safe handling of toluene, explosion limit at $25^{\circ}C$ and the temperature dependence of the explosion limits were investigated. And flash point and AIT (Autoignition Temperature) for toluene were experimented. By using the literature data, the lower and upper explosion limits of toluene recommended 1.13 vol% and 7.9 vol%, respectively. In this study, measured the lower and upper flash points of toluene by air-blowing tester were $5^{\circ}C$ and $40^{\circ}C$, respectively. And measured the upper flash points of toluene by Setaflash tester was $41.5^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659-78 apparatus for toluene, and the experimental AIT of toluene was $547^{\circ}C$. The new equations for predicting the temperature dependence of the explosion limits of toluene is proposed. The values calculated by the proposed equations were a good agreement with the literature data.

The Study on Measurement and Prediction of Combustible Properties for Aniline (아닐린의 연소특성치의 측정 및 예측에 관한 연구)

  • Ha, Dong-Myeong
    • Journal of the Korean Institute of Gas
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    • v.18 no.4
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    • pp.44-50
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    • 2014
  • For the safe handling of aniline, this study was investigated the explosion limits of aniline in the reference data. And the lower flash points, upper flash points and AITs(auto-ignition temperatures) by ignition delay time were experimented. The lower flash point of aniline by using Setaflash and Penski-Martens closed-cup testers were experimented $66^{\circ}C$ and $73^{\circ}C$, respectively. The lower flash point aniline by using Tag and Cleveland open cup testers were experimented $72^{\circ}C$ and $78^{\circ}C$, respectively. Also, this study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for aniline. The experimental AIT of aniline was $590^{\circ}C$. The calculated LEL and UEL by using the measured low flash point and upper flash point were 1.16 Vol.% and 8.36 Vol.%, respectively.

The Measurement and Investigation of Fire and Explosion Characteristics of Isopropyl Alcohol (이소프로필 알코올의 화재 및 폭발 특성치의 측정 및 고찰)

  • Ha, Dong-Myeong
    • Journal of the Korean Institute of Gas
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    • v.16 no.3
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    • pp.8-15
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    • 2012
  • For the safe handling of isopropyl alcohol, the explosion limits were investigated. The lower flash points, upper flash points, fire point, and AITs(autoignition temperatures) by ignition time delay for isopropyl alcohol were experimented. By using literature data, the lower and upper explosion limits of isopropyl alcohol were recommended as 2.0 and 12.0 vol%, respectively. The lower flash points of isopropyl alcohol were experimented $12{\sim}14^{\circ}C$ by using closed-cup tester and $18{\sim}19^{\circ}C$ by using open cup tester. And the upper flash points of isopropyl alcohol was experimented $38^{\circ}C$ by using Setaflash closed-cup tester. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 apparatus was $463^{\circ}C$.

The Relationship between Flash Point and Fire Properties of Flammable Liquids (가연성 액체의 인화점과 화재특성치와의 관계)

  • Song, Young-Ho;Ha, Dong-Myeong
    • Journal of the Korean Institute of Gas
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    • v.11 no.2 s.35
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    • pp.10-14
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    • 2007
  • Flash point is one of the major physical properties used to evaluate fire hazards of the combustible liquids. Properties showing relative fire hazards of the combustible liquids are heat release rate(HRR), peak heat release rate(PHRR), time to ignition(TTI), mass loss rate, and yield of $CO/CO_2$. The relationships between flash points and fire properties of the combustible liquids were examined in this study. For this study, mass loss rate and time to ignition were measured to calculate fire properties of the combustible liquids. The results showed that good correlations could be found between flash point and time to ignition, time to peak heat release rate, and the propensity to flashover. From a presented results, the parameters can be used to evaluate relative hazards of the combustible liquids on fire.

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Measurement and Prediction of Fire and Explosion Properties of 3-Hexanone (3-헥사논의 화재 및 폭발 특성치의 측정 및 예측)

  • Ha, Dong-Myeong
    • Journal of the Korean Institute of Gas
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    • v.17 no.6
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    • pp.33-38
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    • 2013
  • For the safe handling of 3-hexanone(ethyl propyl ketone), this study was investigated the explosion limits of 3-hexanone in the reference data. The flash points and AITs(auto-ignition temperatures) by ignition delay time were experimented. The lower flash points of 3-hexanone by using closed-cup tester were experimented at $18^{\circ}C$. The lower flash points of 3-hexanone by using open cup tester were experimented in $27^{\circ}C{\sim}32^{\circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for 3-hexanone. The experimental AIT of 3-hexanone was at $425^{\circ}C$. The lower explosion limit( LEL) by the measured lower flash point of 3-hexanone was calculated as 1.21 Vol%.