【摘要】 以植物油脚-皂脚为原料,采用酸化、酯化、酯交换的方法来制取生物柴油。通过正交实验得到酸化植物油脚-皂脚与甲醇酯化、酯交换的最佳工艺条件:醇油脚比为6∶1,催化剂用量4%,反应温度65℃,反应时间4 h,脂肪酸甲酯的收率达到76.8%,酸值为0.5 mg KOH/g。制备的生物柴油,其主要性能指标与0#柴油接近,比其他柴油组分的调和性好,具有较好的社会经济效益。更多还原

【Abstract】 In this paper,bio-diesel was prepared with vegetable oil foots-soap foots by acidation,estirification and transesterification process.By orthogonal tests,the optimum reaction conditions of the estirification,transesterification of acidation vegetable oil foots-soap foots with methanol were determined as follows: the molar ratio of methanol to oil 6∶1,amount of catalyst 4%,reaction temperature 65 ℃,and reaction time 4 h.It was showed that fatty acid methyl ester yield is 76.8%,acid number is 0.5 mg KOH/g under the optimum reaction conditions.The major properties of bio-diesel resembled that of 0# diesel oil,and the harmonicity of diesel oil with other diesel oil is good,which have promising a social and economical benefit.更多还原