粮油食品科技Issue(4)：36-39,4.
废弃植物油亚临界水解制取混合脂肪酸及其动力学研究
Study on preparation of fatty acid mixed from waste vegetable oil by hydrolysis in subcritical water and its kinetics
摘要
Abstract
The fatty acid mixed was prepared by hydrolysis from waste vegetable oil in subcritical water in order to study the conditions and its kinetics.The results showed that the optimal hydrolysis conditions of waste vegetable oil in subcritical water were obtained as follows:reaction temperature 280 ℃,volume ra-tio of waste vegetable oil to water 1∶3.5 and reaction time 30 min.Under these conditions,the conver-sion rate of the waste vegetable oil reached 98.1%.The kinetics analysis results indicated that the aver-age reaction order n =1.123 89,the activation energy Ea =70.87 kJ/mol,frequency factor A =1.7706 ×105 and the reaction kinetics model were -dcA 70.87 dt =1.770 6 ×10 5 e -RT c1.123 89A ,respectively.关键词
废弃植物油/亚临界/混合脂肪酸/水解反应/反应动力学Key words
waste vegetable oil/subcritical/fatty acid mixed/hydrolysis reaction/reaction kinetics分类
轻工纺织引用本文复制引用
黄雪,尹国强,张步宁,冯光炷..废弃植物油亚临界水解制取混合脂肪酸及其动力学研究[J].粮油食品科技,2015,(4):36-39,4.基金项目
国家自然科学基金项目 （）
