Effects of flammability characteristics of steam inerting to solution of acetone in water |
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| Authors: | C -H Lin Y -M Chang J -C Lee S -Y Lin C -M Shu |
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| Institution: | (1) Doctoral Program, Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (NYUST), 123, University Rd., Sec. 3, Douliou, Yunlin, Taiwan, 64002, Republic of China;(2) Department of Safety, Health, and Environmental Engineering, NYUST, 123, University Rd., Sec. 3, Douliou, Yunlin, Taiwan, 64002, Republic of China |
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| Abstract: | Preventing accidental explosions of flammable liquid/gas mixtures is very important. As far as flammability characteristics
are concerned, we simulated the effects of inert liquid/gas, which was filled with reactors, vessels, or closed space, employed
in the chemical process industries. The inert liquid/gas (H2O) weakened the oxygen concentration and reduced solvent vapor concentration in a 20-L-Apparatus. This study investigated
the flammability characteristics of acetone/water solutions (100/0, 75/25, 50/50, and 25/75 vol.%) that are controlled at
a temperature of 150°C and pressures of 101/202 kPa, respectively. The flammability parameters included flammability limits
(LEL and UEL), maximum explosion pressure (P
max), maximum explosion pressure rise ((dP dt
−1)max), and vapor deflagration index (K
g). The results of a series of experimental tests showed that UEL, P
max, and K
g all decreased with steam rising under the experimental conditions. The results can be applied to process safety design/operation
for identifying whether the inert liquid/gas (H2O) content has any substantial effects in reducing the fire and explosion hazard of the solution of interest. |
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| Keywords: | acetone/water solutions explosion accidents flammability parameters inert liquid/gas (H2O) 20-L-Apparatus |
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