短程蒸馏处理菜籽毛油和碱催化制备生物柴油工艺研究  

Preparation of biodiesel by short path distillation of rapeseed raw oil and alkaline catalyzing reaction

作　　者：邵平[1] 孙培龙[1] 朱羽[2] 姜绍通[2] 

机构地区：[1]浙江工业大学生物与环境工程学院,杭州310032 [2]合肥工业大学生物与食品工程学院,合肥230009

出　　处：《农业工程学报》2007年第4期228-232,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：安徽省自然科学基金(03041302)

摘　　要：生物柴油是一种环境友好型生物质燃料。为了获得较高纯度的生物柴油,该研究采用短程蒸馏技术处理菜籽毛油以脱除自由脂肪酸和色素,并以氢氧化钾为催化剂,与甲醇进行转酯化反应制备生物柴油。通过单因素和响应曲面分析获得较好的生物柴油制备工艺条件,醇油比6.3∶1(mol/mol),催化剂碱量1.01%(m/m),反应时间为47.5 min,反应温度60℃,生物柴油的转化率达到94%,制备所得的生物柴油性质与0#柴油相似,为生物柴油的大规模生产提供技术基础。Biodiesel is an environmentally friendly renewable biomass fuel. Short path distillation was adopted to remove free fatty acids and pigments from rapeseed raw oil followed by transesterification reaction with methanol in the presence of potassium hydroxide to obtain high quality biodiesel. Better transesterification conditions of rapeseed oil were presented by single factor and response surface methodology analysis. Results show that 94% conversion rate of biodiesel is achieved when reaction temperature 60~C, methanol to material ratio 6.3 ： l（mol/ mol）, amount of catalyst 1.01%（m/m） and reaction time 47. 5 min. The properties of biodiesel obtained are similar with 0^# diesel. It provides technological conditions for producing biodiesel on a large scale.

关 键 词：生物柴油 短程蒸馏 转酯化 响应曲面 

分 类 号：TS224.4[轻工技术与工程—粮食、油脂及植物蛋白工程]