一种含醚新型生物柴油的制备与表征

以精制麻风树油、甲醇和二乙二醇甲醚为反应物,以KOH为催化剂,制备出一种高含氧量的新型生物柴油——麻风树油二乙二醇甲醚酯。通过正交试验,确定了其最佳合成条件是醇油物质的量比为6∶1,催化剂用量为原料油质量的1.2%,反应温度为65℃,反应时间为30 min。通过FT-IR和1H-NMR分析并验证了产物的分子结构,测试了该生物柴油及其与0#柴油混合的燃料理化性质,包括油溶性、烟点、运动粘度、凝点、闭杯闪点;在相同测试条件下,比较其与0#柴油、麻风树油甲酯的碳烟排放情况。结果表明,麻风树油二乙二醇甲醚酯具有较高的含氧量,其理化性能和排放性能良好,既可以作为柴油添加剂,也可以代替柴油单独进行使用,具有一定的推广应用价值。

The preparation and characterization of a novel biodiesel named curcas oil diethylene glycol ether ester

In this paper,a novel biodiesel named curcas oil diethylene glycol ether esters(GDGEE) with higher oxygen content was prepared by refined curcas oil,methanol and ethylene glycol monomethyl ether as the reaction and KOH as catalyst.,The optimum synthesis conditions were determined by orthogonal test.The molar ratio of methanol to oil was 6∶1,catalyst amount was 1.2% of feedstock quality,reaction temperature was 65 ℃,reaction time was 30 minutes.FT-IR and 1H-NMR were used to analysis and validate the molecular structure of curcas oil diethylene glycol ether esters.The physical and chemical properties of GDGEE and its blends with 0# diesel oil were tested by the national standard method.The physical and chemical properties include oil soluble,smoke point,kinematic viscosity,freezing point and closed flash point.At last,smoke emission were test among GDGEE,curcas oil methyl and 0# diesel in the same diesel engine.The results confirm that GDGEE owns the higher oxygen content,good physochemical and emission properties,which can be used as diesel fuel additives or also be used instead of diesel fuel alone.A certain application value of it was easy to know.