本研究的目的在於尋找有潛力的助溶劑，以提高產製生質柴油之轉酯化不互溶之反應物植物油或廢食用油脂與甲醇間的互溶性。實驗中採用雲點法量測由葵花油，甲醇與12種不同之助溶劑所組成之三成分混合物在 308.15 K的液液相邊界，實驗結果顯示正丁胺，乙酸環己酯或丁酸甲酯可顯著地提高油脂與甲醇的互溶性。液液平衡的量測系統隨之延伸至大豆油+甲醇，芥花油+甲醇和廢食用油+甲醇分別與正丁胺，乙酸環己酯或丁酸甲酯助溶劑所組成之三成分混合物系統。液液平衡實驗也包含一個甲基酯+甘油+正丁胺三成分系統和(甲基酯：甘油＝3：1)+甲醇+助溶劑(正丁胺，乙酸環己酯或丁酸甲酯)三個擬三成分混合物系統，量測溫度介於298.15 K到318.15 K之間。
本研究以 NRTL 與 UNIQUAC 兩種模式計算液液平衡，並依據液液平衡之實驗果訂定各模式之雙成分參數值。大致上，NRTL與 UNIQUAC模式均能合理描述本研究的三成分系統之液液平衡相邊界。

The objective of this work is to find potential auxiliary solvents for increasing mutual solubility of vegetable oils or waste cooking oil with methanol, which are the immiscible reactants for producing bio-diesel via transesterification. The liquid-liquid equilibrium (LLE) phase boundaries of the ternary systems containing sunflower oil, methanol, and one of twelve selected solvents were measured with cloud-point method at 308.15 K. The experimental results indicated that the presence of n-butylamine, cyclohexyl acetate, and methyl butyrate could substantially improve the miscibility between the oil and methanol. The LLE measurements were thus extended to the ternary systems of soybean oil + methanol, canola oil + methanol, and waste cooking oil + methanol together with an auxiliary solvent, n-butylamine, cyclohexyl acetate, or methyl butyrate. The LLE experiments were also conducted for one ternary system and three pseudo-ternary systems, including methyl ester + glycerol + n-butylamine and (methyl ester：glycerol＝3︰1) + methanol + an auxiliary solvent (n-butylamine, cyclohexyl acetate, or methyl butyrate) at temperatures from 298.15K to 318.15K.
The NRTL and UNIQUAC models were applied to LLE calculation and the model parameters of the constituent binaries were determined on the basis of the LLE experimental results. Generally, the NRTL and UNIQUAC model can represent the bimodal locus of the investigated ternary systems reasonably.

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陳昶全 “含水、丙烯酸、醇、丙烯酸酯類混合物之液液相平衡,” 碩士論文, 國立台灣科技大學, 民國九十四年七月。