改性活性白土精制麻疯树油  

Refinement of Jatropha Oil by Modified Activated Clay

作　　者：胡雪玲[1] 韦藤幼[1,2] 毛格清[1] 刘幽燕[1] 童张法[1,2] 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西石化资源加工及过程强化技术重点实验室,广西南宁530004

出　　处：《精细化工》2011年第10期974-977,981,共5页Fine Chemicals

基　　金：国家自然科学基金资助项目(21076046);广西壮族自治区科技计划项目(桂科攻10123007-2);广西理工科学实验中心重点项目(LGZX201008)~~

摘　　要：利用负载氢氧化钙活性白土和自制的负载柠檬酸活性白土对麻疯树毛油分别进行了脱胶和脱酸精制,考察了不同工艺条件对脱胶、脱酸效果的影响,最后把脱胶、脱酸两个过程一步完成,实现了一步法强化精炼过程。结果表明,一步法精炼后的麻疯树毛油的酸值下降到0.23 mg KOH/g,磷脂含量下降到0.09 mg/g,用精炼油进行碱催化制备的生物柴油,其甲酯质量分数超过99%,效果良好。This paper examines the effecting factors in degumming and deacidification of crude Jatropha oil with the activated clay loaded respectively with citric acid and calcium hydroxide. And then degumming and deacidification process were coupled together to strengthen the refining process in one step. The results indicate that, in the one-step refinement process, the acid value of the refined Jatropha oil is decreased to 0.23 mg KOH/g and the phosphatide content is decreased to 0.09 mg/g. When the refined oil was used as the feedstock, catalyzed by a homogeneous alkaline, for biodiesel production, the mass fraction of methyl ester in the final product is greater than 99% ,which is satisfying.

关 键 词：麻疯树油 改性活性白土 油脂精炼 生物柴油 分离提纯技术 

分 类 号：TQ644.46[化学工程—精细化工]