Study on volatility and flash point of the pseudo-binary mixtures of sunflowerseed-based biodiesel + ethanol

Volatility and flash point for the pseudo-binary mixtures of sunflowerseed-based biodiesel + ethanol were measured over the entire composition range. The biodiesel was prepared by the transesterification of sunflowerseed oil in supercritical methanol without using any catalyst. The vapor pressures o...

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Bibliographic Details
Published in:Journal of hazardous materials 2009-08, Vol.167 (1), p.625-629
Main Authors: Guo, Yongsheng, Wei, Hui, Yang, Fengjun, Li, Dan, Fang, Wenjun, Lin, Ruisen
Format: Article
Language:English
Subjects:
Applied sciences
Biodiesel
Catalysis
Catalytic reactions
Chemical engineering
Chemistry
Ebulliometer
Energy-Generating Resources
Esterification
Ethanol
Exact sciences and technology
Flash point
General and physical chemistry
Methanol
Plant Oils
Pollution
Reactors
Sunflower Oil
Temperature
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Transesterification
Vapor Pressure
Volatilization
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Summary:Volatility and flash point for the pseudo-binary mixtures of sunflowerseed-based biodiesel + ethanol were measured over the entire composition range. The biodiesel was prepared by the transesterification of sunflowerseed oil in supercritical methanol without using any catalyst. The vapor pressures of mixtures of biodiesel + ethanol as a function of temperature were measured by comparative ebulliometry with an inclined ebulliometer. The vapor pressures versus composition at different temperatures and temperatures versus composition at different pressures were obtained from Antoine correlations. It is found that ethanol can adjust effectively the volatility and flash point of the biodiesel. The correlation of the flash points with the vapor pressure data for the pseudo-binary mixtures of biodiesel + ethanol displays agreement with the experimental data obtained by closed cup test.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2009.01.015