低共熔溶剂中钯催化脂肪酸甲酯加氢反应的研究  

PALLADIUM-CATALYZED HYDROGENATION OF FATTY ACID METHYL ESTER IN DEEP EUTECTIC SOLVENTS

作　　者：肖冰 刘伟[1] 路光辉[1] XIAO Bing;LIU Wei;LU Guanghui(School of Food Science and Technology,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学粮油食品学院,河南郑州450001

出　　处：《河南工业大学学报（自然科学版）》2018年第6期23-28,共6页Journal of Henan University of Technology：Natural Science Edition

基　　金：河南工业大学青年骨干教师培育计划(2014003)

摘　　要：为了在不影响生物柴油(脂肪酸甲酯)低温流动性的情况下提高其氧化稳定性,可对生物柴油进行选择性氢化,将多不饱和脂肪酸甲酯氢化为单不饱和脂肪酸甲酯。以低共熔溶剂(DES)为溶剂,使用PdCl2为催化剂,对脂肪酸甲酯的选择性氢化进行了研究。以亚油酸甲酯完全氢化为油酸甲酯时的碘值(76 g/100 g)作为反应的评价标准,得到的最佳反应条件为:以氯化胆碱和尿素合成的DES为溶剂、氯化钯与葵花籽油脂肪酸甲酯的物质的量的比为1∶20,反应温度60℃,转速600 r/min,此时氢化产品的碘值最低(87 g/100 g)。且氢化脂肪酸甲酯中,油酸甲酯的含量为74.19%,亚油酸甲酯的含量为13.44%,饱和脂肪酸甲酯含量几乎没有变化。An effective way to improve the oxidative stability of biodiesel is selective hydrogenation of the polyunsaturated fatty acid methyl esters in biodiesel.Selective hydrogenation of fatty acid methyl esters was investigated using deep eutectic solvent as a solvent,and PdCl2 as catalyst.If the iodine value(76g/100g)was taken as evaluation criterion when methyl linoleate was completely hydrogenated to methyl oleate,the optimum reaction conditions were as follows:DES synthesized with choline chloride and urea as solvent,molar ratio of palladium chloride to sunflower seed oil fatty acid methyl ester(1∶20),reaction temperature(60℃),rotation rate of 600r/min.Iodine value of hydrogenated products had the lowest value of 87g/100g under this condition.Methyl oleate content was 74.19%,methyl linoleate content was 13.44%,and there was little change in saturated fatty acid methyl ester content nearly in hydrogenated fatty acid methyl esters.

关 键 词：葵花籽油甲酯 氢化 氯化钯 低共熔溶剂 

分 类 号：TS201.2[轻工技术与工程—食品科学]