摘要
Cottonseed as raw material was processed by two-phase solvent extraction.Non-toxic crude protein was produced, and at the same time the nonpolar solution containing high quality crude cottonseed oil was used for transesterification reaction with methanol to produce fatty acid ester and glycerol.The effect of mass ratio of petroleum ether to crude cottonseed oil on the fatty acid ester content and the quantity of water needed for washing the product were investigated.It was confirmed that the best mass ratio of petroleum ether to crude cottonseed oil was 3.Under this condition, the water consumption was halved.The effect of methanol/oil molar ratio, catalyst amount, reaction temperature and time were also studied.Through orthogonal analysis, the optimum conditions were obtained as follows: the molar ratio of methanol to oil 6∶1, the amount of catalyst 1.1%, reaction temperature 60℃ and reaction time 120 min.The results of parallel tests showed that under such optimum condition the cottonseed oil conversion could reach 97.7%.
Cottonseed as raw material was processed by two-phase solvent extraction. Non-toxic crude protein was produced, and at the same time the nonpolar solution containing high quality crude cottonseed oil was used for transesterification reaction with methanol to produce fatty acid ester and glycerol. The effect of mass ratio of petroleum ether to crude cottonseed oil on the fatty acid ester content and the quantity of water needed for washing the product were investigated. It was confirmed that the best mass ratio of petroleum ether to crude cottonseed oil was 3. Under this condition, the water consumption was halved. The effect of methanol/oil molar ratio, catalyst amount, reaction temperature and time were also studied. Through orthogonal analysis, the optimum conditions were obtained as follows： the molar ratio of methanol to oil 6 ： 1, the amount of catalyst 1.1%, reaction temperature 60℃ and reaction time 120 min. The results of parallel tests showed that under such optimum condition the cottonseed oil conversion could reach 97.7 %.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2007年第10期2636-2640,共5页
CIESC Journal
关键词
双液相萃取
酯交换反应
脂肪酸甲酯
生物柴油
two-phase solvent extraction
transesterification
fatty acid methyl ester
biodiesel oil
