期刊论文

中文

武汉轻工大学学报

2095-7386

2017

36

3

23-26

10.3969/j.issn.2095-7386.2017.03.004

31601505:国家自然科学基金 31371783:国家自然科学基金 295648:武汉轻工大学***科研启动基金

本校为第一机构

以生物柴油为原料,采用二次冷冻结晶法富集不饱和脂肪酸甲酯,并采用气相色谱仪对产物的脂肪酸组成进行分析.经过二次结晶富集得到的液体油中不饱和脂肪酸甲酯含量更高,凝固点更低,其中不饱和脂肪酸甲酯含量从61.22%提高到87.91%,凝固点从8.5℃降低到-4.1℃.富集得到的液态生物柴油一方面可做为深加工的原料,合成附加值更高的化工产品;另一方面低凝固点生物柴油可以作为原料添力口到柴油中作为混合燃料使用.

Using biodiesel as raw material,the unsaturated fatty acid methyl esters were enriched by the method of secondary cooling crystallization, and results were determined by gas chromatograph. Compared to the raw materi-al ,the enriched liquid oil after the secondary cooling crystallization has higher content of unsaturated fatty acid methyl esters and lower freezing point. The content of unsaturated fatty acid methyl esters increased from 61.22% to 87.91% , and the freezing point decreased from 8. 5 ℃ to -4.1 ℃. The enriched liquid oil can not o...