催化剂浓度对花椒油酯化产物酸值的影响

Journal of Northwest Forestry University(2006)

Cited 3|Views6
No score
Abstract
以高酸值花椒油(酸值63.562 m g.-g 1)为原料,经过酯化-碱炼两步反应降低游离脂肪酸的含量,研究了花椒油与甲醇发生酯化反应过程中,催化剂浓度对酯化产物酸值的影响。结果表明,在醇油摩尔比6∶1、反应温度60℃、搅拌速度850 r.m i-n 1时,酯化反应的最佳催化剂(浓硫酸)质量分数为2%(W/W),反应时间为150 m in,酯化油得率为92.5%,酸值降低到6.17 m g.-g 1;进一步通过N a2CO3碱炼反应,酯化产物油的酸值降至0.72 m g.g-1,可用于碱催化法合成生物柴油的原料。
More
Translated text
Key words
acid catalyst,alkaline refining,esterification,biodiesel,Zanthoxylum bungeanum seed oil
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined