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http://dx.doi.org/10.14346/JKOSOS.2017.32.6.34

Dew Point Prediction by Lower Flash Points of Binary Mixtures  

Ha, Dong-Myeong (Department of Occupational Health and Safety Engineering, Semyung University)
Lee, Sungjin (Department of Clinical Laboratory Science, Semyung University)
Publication Information
Journal of the Korean Society of Safety / v.32, no.6, 2017 , pp. 34-39 More about this Journal
Abstract
Vapor-liquid equilibrium calculation is required to properly design and operation of distillation process. The general calculation method is to use binary interaction parameter. Lower flash points of cyclohexanol+aniline and cyclohexanol+cyclohexanone were measured by using Seta-flash closed cup apparatus. The measured flash points were compared with those calculated by the method based on Raoult's law and the optimization method using Wilson equation. The absolute average errors(A.A.E.) of the results calculated by Raout's law are $0.25^{\circ}C$ and $1.07^{\circ}C$ for cyclohexanol+aniline and cyclohexanol+cyclohexanone, respectively. The absolute average errors of the results calculated by the optimization method are $0.22^{\circ}C$ and $0.65^{\circ}C$ for cyclohexanol+aniline and cyclohexanol+cyclohexanone, respectively. As can be seen from A.A.E., the calculated values based on the optimization method were found to be better than those based on the Raoult's law. The binary interaction parameters calculated by the optimization method are used to predict the dew points of cyclohexanol+aniline and cyclohexanol+cyclohexanone. The A.A.E. for these mixtures show that there is an acceptable agreement between experimental and calculated dew poins.
Keywords
lower flash point; seta-flash closed cup; wilson; optimization method; dew point;
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Times Cited By KSCI : 4  (Citation Analysis)
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