Journal of Fundamentals of Renewable Energy and Applications
Open Access
ISSN: 2090-4541
+44 1300 500008
ISSN: 2090-4541
+44 1300 500008
Luo Wen, Xing Shiyou, Li Zhibing, Wang zhiyuan, Yang Lingmei, Fu Junying and Lv Pengmei
Chinese Academy of Sciences, People��?s Republic of China
Posters & Accepted Abstracts: J Fundam Renewable Energy App
Phase equilibrium information is beneficial for industrial simulation and design for chemical processes. As a complex multi -component system, phase equilibria data of biodiesel systems containing transesterification products are essential for biodiesel production. In this study, liquid-liquid equilibrium (LLe ) data, saturation curves, and tie-lines were carried out for three ternary systems of palm oil biodiesel/waste oil biodiesel/soybean oil biodiesel + methanol + glycerol at 313.15 K under atmospheric pressure. The results indicated that biodiesel was almost immiscible with glycerol at low methanol content in the system, which was advantageous for the separation of biodiesel from glycerin. As the methanol content rising, mutual solubility of biodiesel and glycerol increased. Saturation curves of these systems exhibited similar characteristics. Liquid liquid Equilibrium (LLE) of methyl oleate/methyl stearate/methyl palmitic + methanol + glycerol were studied at three temperatures (313.15, 323.15, 333.15 K). Mutual solubility of liquids was affected by the temperature. With the rise of temperature, the saturated solubility curve shifted downward, and two-phase region area became narrow, while single-phase region area increased. The experimental data at different temperatures was correlated by NRTL activity coefficient models and binary interaction parameters of the ternary systems were obtained. The calculation results agreed well with the experimental data, indicating that the NRTL model was suitable for these systems.
Email: luowen@ms.giec.ac.cn