Flammability characteristics studies on toluene and methanol mixtures with different vapor mixing ratios at 1 atm and 150°C

Abstract

The flammability characteristics of chemical substances are very important for safety considerations in manufacturing processes. This study investigated the mixing of toluene and methanol mixtures with five vapor mixing ratios (100/0, 75/25, 50/50, 25/75 and 0/100 vol.%) at initial conditions of 1 atm and 150°C, and determined the flammability properties to identify their potential fire and explosion hazards. These safety-related parameters included lower explosion limit (LEL), upper explosion limit (UEL), maximum explosion overpressure (Pmax) and rate of maximum explosion pressure rise ((dP/dt)max); all of them were measured by a 20-L-Apparatus.