摘要
研究了甲醇钙固体碱催化剂催化菜籽油和甲醇酯交换反应制备生物柴油的反应性能,分析了甲醇钙的比表面积、总孔体积、平均孔径和热稳定性,并研究了反应温度、催化剂用量和醇油摩尔比对生物柴油产率的影响。结果表明,甲醇钙热稳定性好,碱性强;在催化剂用量为菜籽油质量的2.0%、反应温度为65℃、醇油摩尔比为22∶1、反应时间2.5h的条件下,生物柴油产率达到了95%。
Transesterification of rapeseed oil to biodiesel with methanol using calcium methoxide as a solid base catalyst was investigated. The surface area, total pore volume, average pore diameter and thermal stability of calcium methoxide catalyst were measured. The effects of various parameters, such as reaction temperature,mass ratio of catalyst to oil and molar ratio of methanol to oil on the biodiesel yield was studied and the reaction conditions were optimized. The results showed that calcium methoxide exhibited strong basicity and good thermal stability. Under the optimal reaction conditions of a molar ratio of methanol to oil of 22,a catalyst dosage of 2.0% ,a reaction temperature of 65 ℃ and a reaction time of 2.5 h, the yield of obtained biodiesel reached 95 %.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2007年第10期21-24,共4页
Petroleum Processing and Petrochemicals
关键词
甲醇钙
生物柴油
脂肪酸甲酯
酯交换
固体碱
calcium methoxide
biodiesel
fatty acid methyl ester
transesterification
solid base
作者简介
刘学军（1979-），男，博士生，主要从事清洁燃料和可再生能源方面的研究工作。
