title: Study on volatility and flash point of the pseudo-binary mixtures of sunflowerseed-based biodiesel+ethanol.
abstract: Volatility and flash point for the pseudo-binary mixtures of sunflower seed-based biodiesel+ethanol were measured over the entire composition range. The biodiesel was prepared by the transesterification of sunflower seed 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.
authors.affiliation: Department of Chemistry, College of Science, Zhejiang University, 38 Zheda Road, Hangzhou, China. wjjw@zju.edu.cn
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Guo
authors.forename: Hui
authors.initials: H
authors.lastname: Wei
authors.forename: Fengjun
authors.initials: F
authors.lastname: Yang
authors.forename: Dan
authors.initials: D
authors.lastname: Li
authors.forename: Wenjun
authors.initials: W
authors.lastname: Fang
authors.forename: Ruisen
authors.initials: R
authors.lastname: Lin
mesh_terms: D004736:Energy-Generating Resources; D004951:Esterification; D000431:Ethanol; D000432:Methanol; D010938:Plant Oils; D000074242:Sunflower Oil; D013696:Temperature; D055548:Vapor Pressure; D014835:Volatilization
chemical_list: D010938:Plant Oils; D000074242:Sunflower Oil; D000431:Ethanol; D000432:Methanol