摘要
以活性炭(AC)负载酸性离子液体[Hmim-BS][HSO4]制备的[Hmim-BS][HSO4]/AC为催化剂,以大豆油和甲醇为原料,通过酯交换反应生成生物柴油。考察了离子液体负载量、催化剂用量、反应时间、反应温度以及醇油摩尔比等因素对生物柴油收率的影响。研究结果表明:在催化剂负载量为30%,催化剂用量为大豆油质量的7.5%,140℃下反应5h,生物柴油收率超过92%。重复使用4次后,生物柴油收率仍可达到83%左右,表现出良好的催化性能。
An acidic ionic liquid catalyst [Hmim-BS][HSO4]supported on active carbon was prepared [Hmim-BS][HSO4]/AC and used to produce biodiesel through transesterification of soybean oil with methanol. The effects of suppor ted amount of ILs,catalyst dosage,reaction time,reaction temperature and methanol/oil molar ratio were investigated. The biodiese[ yield was over 92~ under the conditions of supported amount of 30% ILs,catalyst dosage7. 5% （based on the soybean oil mass） , reaction time 5h,reaction temperature 140℃ and methanol/oil molar ratio 36 = 1. The yield of biodiesel could reach about 83 %0 after the catalyst was recycled four times. The catalyst showed good catalytic property.
出处
《化工新型材料》
CAS
CSCD
北大核心
2014年第7期58-61,共4页
New Chemical Materials
基金
国家自然科学基金(21306063)
江苏省基础研究计划(BK20130123)
关键词
活性炭
离子液体
催化剂
生物柴油
active carbon, Ionic liquid, catalyst, biodiesel
