改性活性白土精制麻疯树油

Refining of Jatropha oil by modified activated clay

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。实验结果表明，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，其甲酯含量超过99%，效果良好。

Abstract:

The effecting factors of degumming and deacidification for crude Jatropha oil were investigated with the activated clay loaded by the citric acid and the calcium hydroxide respectively. And then degumming and deacidification process were coupled together to strengthen refine process by one-step. The results indicated that the acid value is 0.23 mg KOH/g and the phosphatide content is 0.09 mg/g for refined Jatropha oil. When the refined oil was the feedstock using a homogeneous alkaline catalyst for biodiesel production, the content of methyl ester in the product is larger than 99%. The performance on biodiesel production has been satisfactory.