摘要
水力空化条件下,以高芥酸菜籽油为原料,研究了醇-油不相溶体系的酯交换反应。结果表明:水力空化技术能大大缩短酯交换反应达到平衡的时间;与机械搅拌反应体系相比,在反应温度60℃、醇油摩尔比6:1、催化剂用量1.0%KOH的条件下,反应平衡时间可从60min缩短至30min,油酯的转化率从94%提高到99%,水力空化技术可强化醇油互不相溶体系酯交换反应传质过程,是一种高效的生物柴油制备方法。同时通过实验以高芥酸菜籽油为原料制备出高品质的生物柴油和高附价值的芥酸甲酯,为我国发展菜籽油生物柴油降低生产成本提供新思路。
A kind hydrodynamic cavitation equipment was designed and the base-catalyst transesterification of rape oil with high erucic acid to prepare biodiesel （BD） and erucic acid methyl ester was investigated. It is found that with the help of hydrodynamic cavitation the reaction time is much shorter than that of conventional mechanical agi- tation. It can be shortened from 60 minutes to 30 minutes at the reaction temperature 60℃with methanol-oil molar ratio 6：1 and KOH 1.0%. Meanwhile, the reaction conversion is also improved from 94% to 99%. Furthermore, hydrodynamic cavitation is very important to emulsifing immiscible methanol-oil system in order to improve its higher reaction velocity. Through experiments high quality biodiesel （BD） and high value erucic acid methyl ester are gained by vacuum distillation from rape oil with high erucic acid. It can provide a new idea for lower production costs to develope rape oil biodiesel in our country.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2011年第9期1365-1369,共5页
Acta Energiae Solaris Sinica
基金
浙江省科技厅重大专项资助项目(2006C11015)
关键词
水力空化
高芥酸菜籽油
酯交换反应
生物柴油
芥酸甲酯
hydrodynamic cavitation
rape oil with highmethyl estererucic acid
transesterification
biodiesel
erucic acid
