K_2CO_3/γ-Al_2O_3催化玉米油酯交换制备生物柴油  

Synthesis of biodiesel from corn oil by transesterification on K_2CO_3/γ-Al_2O_3 catalyst

作　　者：张跃飞[1] 常瑶[1] 张珂珂[1] 吴其文[1] 刘江林[1] 殷鸿浩 赵世峰[1] 

机构地区：[1]长沙理工大学化学与生物工程学院,电力与交通材料保护湖南省重点实验室,长沙410114

出　　处：《化工新型材料》2013年第11期50-52,共3页New Chemical Materials

基　　金：国家自然科学基金项目(21376031);长沙理工大学大学生创新实验项目

摘　　要：采用等体积浸渍法制备了负载型固体碱催化剂K2CO3/γ-Al2O3,并将其用于催化玉米油与甲醇酯交换反应制备生物柴油。考察了反应条件对酯交换反应的影响。实验结果表明:当K2CO3负载量(K2CO3与γ-Al2O3的质量比)为25%、催化剂用量(相对于玉米油的质量)为5%、反应温度为55℃、反应时间为5h、醇油摩尔比(甲醇与玉米油的摩尔比)为12∶1时,生物柴油的收率可以达到90%以上,说明该催化剂具有较高的催化活性。Biodiesel was synthesized via transesterification of corn oil and methanol on K2 CO3/γ-Al2O3 solid base catalyst prepared by isochoric impregnation method. The influences of reaction conditions on yield of biodiesel were investi- gated. When the mass ratio of K2CO3 toγ-Al2O3 was 25%, mass ratio of catalyst to corn oil 5%, reaction temperature 55℃, reaction time 5h, and molar ratio of methanol to corn oil 12, the yield of biodiesel can reach above 90%. It showed that the catalyst had high catalytic activity

关 键 词：生物柴油 酯交换 K2CO3 Γ-AL2O3 玉米油 

分 类 号：TE667[石油与天然气工程—油气加工工程]