摘要
以盐酸三乙胺和不同金属氯化物FeCl3,CuCl2,SnCl2,ZnCl2为原料,合成了一系列Lewis酸性离子液体[Et3NH]Cl/MClX,将其用于催化文冠果种仁油和甲醇酯交换制备生物柴油。考察了离子液体的种类,反应温度,醇油摩尔比,催化剂用量和反应时间对生物柴油产率的影响。结果表明:在反应温度为70℃,醇油摩尔比为12,催化剂用量为原料油质量的5%,反应时间7h时,离子液体[Et3NH]Cl-2FeCl3催化酯交换制备生物柴油的产率可达95.4%。[Et3NH]Cl-2FeCl3具有较好的循环使用能力,循环使用6次后,催化性能没有明显降低。制备的生物柴油各项指标符合生物柴油国家标准GB/T20828-2007。
Lewis acid ionic liquid [Et3NH]Cl/MClX was synthesised by triethylamine hydrochloride and FeCl3,CuCl2,SnCl2,ZnCl2,and they were used as catalyst in the transesterification between sorbifolia seed oil and methanol to produce biodiesel.The effect of species of ionic liquids,reaction temperature,molar ratio of methanol to sorbifolia seed oil,catalyst concentration and reaction time on the conversion rate of transesterification were investigated.Results showed that when reaction temperature 70℃,molar ratio of methanol to soybean oil 12,catalyst concentration 5% and reaction time7 h,the highest conversion rate of transesterification 95.4%could be obtained.The ionic liquid[Et3NH]Cl-2FeCl3 could be recycled 6times with only a slight decrease in activity.The indexes of biodiesel prepared met the National Standards of GB/T20828-2007.
出处
《化工新型材料》
CAS
CSCD
北大核心
2015年第2期37-39,42,共4页
New Chemical Materials
基金
基于人才培养目标对接国家职业标准的中高职衔接课程体系构建与实践(20142127)
