机构地区: 华南理工大学化学与化工学院广东省绿色化学产品技术重点实验室
出 处: 《化工进展》 2010年第4期638-642,共5页
摘 要: 以麻疯油为原料,离子液体[HSO3-bpy]CF3SO3为催化剂通过酯交换反应制备生物柴油。通过正交实验考察了催化剂用量、醇油摩尔比、反应温度、反应时间等4个因素对反应的影响。同时以[HSO3-bpy]CF3SO3为催化剂兼溶剂,优化了生物柴油的合成条件。结果显示:反应温度为140℃、催化剂用量为油脂质量的5%、醇油摩尔比为15:1、反应5h,单次酯交换制备生物柴油,收率可达到90.4%,在相同的反应条件下,催化剂重复使用6次后其催化活性无明显变化,且产品质量达到美国ASTM生物柴油标准的相关指标。 Biodiesel was prepared from Jatropha curcas oil through transesterification catalyzed by ionic liquid [HSO3-bpy]CF3SO3.Effect of temperature,catalyst amount,the ratio of methanol to oil and reaction time on transesterification were studied by orthogonal experiment.Results showed that the yield of biodiesel reached to 90.4% under the optimized conditions with temperature of 140 ℃,catalyst amount of 5%,methanol to oil molar ratio of 15:1 and reaction time of 5h.The ionic liquid [HSO3-bpy]CF3SO3 had no obvious change in catalytic activity after being used for 6 times,and the product matched the ASTM standards.
领 域: [石油与天然气工程]