生物柴油的组成对低温流动性的影响  

The influence of composition of biodiesel on the cold flow properties

作　　者：何抗抗 杨超 蔺华林 韩生 

机构地区：[1]上海应用技术大学化学与环境工程学院,上海201418

出　　处：《应用化工》2017年第6期1062-1064,1070,共4页Applied Chemical Industry

基　　金：国家自然基金(41171250);上海市教委科技创新重点项目(11ZZ179);上海市教委重点学科建设(J51503);曙光计划项目(11SG54);联盟计划(LM201221;LM201344);助推计划(12ZT17);上海市人才发展基金(201335)

摘　　要：生物柴油的化学组成是影响其低温流动性的重要因素。通过用气质联用仪和多功能低温试验器分别测定常见的6种生物的组成分布和浊点、倾点、冷滤点等低温流动性指标,用控制变量法研究生物柴油的组成和冷滤点的关系。结果表明,生物柴油中饱和脂肪酸甲酯的含量越高,饱和脂肪酸甲酯的脂肪酸碳链越长,生物柴油的低温流动性越差;不饱和脂肪酸甲酯的含量越高,脂肪酸甲酯的不饱和度越大,生物柴油的低温流动性越好;与饱和脂肪酸甲酯相比,不饱和脂肪酸甲酯对生物柴油低温流动性的影响可以忽略。The chemical composition is an important factor which affects cold flow properties of biodiesel.Composition and content of six biodiesel was analyzed by GC-MS and indexes of cold flow properties,such as cloud points,pour points,and cold filter plugging points （CFPP） were determined by multifunction tester at low temperature.The relationship of content of fatty acid esters and CFPP for biodiesel was investigated by control variable method.The results prove that long-straight chain saturated fatty acid methyl esters （FAME） tend to have relatively poor cold flow properties,high unsaturated FAME tend to have relatively good cold flow properties,and compared with saturated FAME,the influence of unsaturated FAME was negligible on cold flow properties of biodiesel.

关 键 词：生物柴油 冷滤点 低温流动性 

分 类 号：TQ517.2[化学工程] TQ645