화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.22, No.6, 803-812, November, 2005
DOI10.1007/BF02705658  Export Citation
Flammability Studies of Benzene and Methanol with Various Vapor Mixing Ratios at 150 ℃
Yi-Min Chang, Jo-Ming Tseng1, Chi-Min Shu, and Kwan-Hua Hu2, †
  • Process Safety and Disaster Prevention Laboratory, Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology (NYUST), 123, University Rd., Sec. 3, Touliu, Yunlin, 64002, Taiwan
  • 1Doctoral Candidate, Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (NYUST), 123, University Rd., Sec. 3, Touliu, Yunlin, 64002, Taiwan
  • 2Jen-Teh Junior College of Medicine, Nursing and Management, National Yunlin University of Science and Technology (NYUST), 1, Jin-Ten Rd., Houlong, Miaoli, 35664, Taiwan
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.Both benzene and methanol are important raw materials in petrochemical industries worldwide. However, with increased demand in the past few years, the fire and explosion hazards from both benzene and methanol under abnormal conditions have increased rapidly with the demand. This study investigated the flammability characteristics of a binary solution for the mixture of benzene and methanol at various vapor-mixing ratios (100/0, 75/25, 50/50, 25/75, 0/100 vol%) under 150 oC, 760 and 1,520 mmHg by using a 20 Liter Spherical Explosion Vessel. Such work leads to specific safety-related property parameters, including upper explosion limit (UEL), lower explosion limit (LEL), minimum oxygen concentration (MOC), maximum explosion pressure (Pmax), maximum rate of explosion pressure rise (dP/dt)max, and gas or vapor explosion constant (Kg). Along with the results which show that the UEL, Pmax, and Kg all increased with the pressure and oxygen concentration, a triangular flammability diagram was also established. This all serves to elucidate the potential hazards when vapors of different flammable chemicals are mixed.
Keywords:Fire and Explosion Hazards;Binary Solution;Safety-Related Property Parameters;Triangular Flammability Diagram
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