作者:Luciano N. Batista、Rosane A. S. San Gil、Luciana B. R. Lopes、Vera L. P. Soares
DOI:10.1007/s10973-011-1558-x
日期:2011.12
This work describes thermal analysis evaluation of a glycerol derived compound (fatty acid esters of (2,2-dimethyl-1,3-dioxolan-4-yl) methanol) developed to work as a biofuel. Mixtures of these ketal–glyceryl esters with fatty acid methyl esters typical of soybean biodiesel were prepared and evaluated in relation to biodiesel critical thermal properties such as temperature of crystallization, thermal stability and volatilization measured by differential scanning calorimetry and thermogravimetric analysis. The volatility of the products containing fatty acid methyl esters and (2,2-dimethyl-1,3-dioxolan-4-yl) methyl esters could be predicted by thermogravimetric analyses conducted in nitrogen that avoided time consuming distillation and greatly reduced material expenditure.
这项工作描述了对一种甘油衍生化合物((2,2-二甲基-1,3-二氧戊环-4-基)甲醇脂肪酸酯)的热分析评估,该化合物被开发用作生物燃料。制备了这些缩酮甘油酯与典型的大豆生物柴油脂肪酸甲酯的混合物,并通过差示扫描量热仪和热重分析法对生物柴油的关键热特性(如结晶温度、热稳定性和挥发性)进行了评估。通过在氮气中进行热重分析,可以预测含有脂肪酸甲酯和(2,2-二甲基-1,3-二氧戊环-4-基)甲酯的产品的挥发性,从而避免了耗时的蒸馏,并大大减少了材料支出。