摘要
针对游离脂肪酸(FFA)含量高棕榈毛油转化生物柴油课题,设计150升规模装备,并应用该装备对棕榈毛油转化生物柴油生产工艺进行研究。试验表明,适宜醇油比和硫酸浓度可降低FFA含量,在酯化反应阶段,醇油摩尔比为3.75、硫酸浓度0.62%、低搅拌速度175 r/min,反应25分钟内,油脂FFA含量可低于2 wt/wt;酯交换反应阶段,在醇油摩尔比为6∶1、NaOH加入量1.0%,低搅拌速度条件下,反应20分钟内,脂肪酸甲酯转化率可达97%。
Mixed crude palm oil （ MCPO ） contains high free fatty acid （ FFA ） which is not suitable to make biodiesel by transesterification process. A 150 liters was designed and fabricated for producing biodiesel from MCPO. Variation of the amount of methanol and sulfuric acid were investigated to find the suitable condition for reducing FFA in MCPO. It was found that FFA decreased to less than 2% wt/wt within 25 minutes during the esterification propess under the condition of 3.75 ： 1 molar ratio of methanol to oil and 0.62% of sulfuric acid to oil and the low speed of stirrer （ 175 r/min ）. In addition, 97%wt/wt conversion of methyl ester could be achieved in 20 minutes when 6 ： 1 molar ratio of methanol to oil and 1.0% of NaOH to oil was fixed for using in the the transesterification propess.
出处
《粮食与油脂》
北大核心
2012年第11期19-21,共3页
Cereals & Oils
基金
江苏省教育厅高校自然基金(09KJD480001)
江苏大学高级专业人才科研启动基金(08JDG039)
