Production of biodiesel from crude palm oil by a sequential hydrolysis/esterification process using subcritical water
Production of biodiesel from crude palm oil by a sequential hydrolysis/esterification process using subcritical water
复制标题
使用亚临界水通过连续水解/酯化工艺从毛棕榈油生产生物柴油
DOI：
10.1016/j.renene.2018.06.102
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发表时间：
2019
期刊：
影响因子：
8.7
通讯作者：
D. L. Flumignan
中科院分区：
文献类型：
--
作者：
L. K. Santos;R. R. Hatanaka;J. E. Oliveira;D. L. Flumignan
本文研究了亚临界/化学加氢酯化法从棕榈毛油制备生物柴油。氢酯化是生物柴油生产的创新，分为两步：在亚临界水中将油水解成游离脂肪酸（FFA），然后将FFA化学酯化成FAME（生物柴油）。目的是应用实验析因设计来评估反应变量对水解效果的影响，并确定FFA和FAME产率的关系。在间歇反应器中在各种条件下进行实验，并确定了水解的最佳条件（250 °C，120分钟，100：1的水：油摩尔比和700 rpm）。分析表明高FFA产率（86重量%）。酯化结果显示，在生物柴油生产中，脂肪酸甲酯的转化率为99.1重量%。结果表明，氢酯交换法生产的生物柴油质量优于传统的碱法。
This paper investigates the biodiesel production by subcritical/chemical hydroesterification from crude palm oil. Hydroesterification is the innovation of biodiesel production in two-step: consists of hydrolysis of oil into free fatty acids (FFAs) in subcritical water and subsequent chemical esterification of FFAs into FAMEs (biodiesel). The purpose was to apply the experimental factorial design to evaluate the influence of reaction variables on the effectiveness of hydrolysis and determine the relationship of FFAs and FAMEs yields. Experiments were conducted in a batch reactor under various conditions and the optimal conditions (250 °C, 120 min, 100:1 water:oil molar ratio and 700 rpm) for hydrolysis was determined. The analyses indicated high FFAs yields (86 wt%). Esterification results revealed a conversion of the FFAs in 99.1 wt% of FAMEs in biodiesel production. This study shows that hydroesterification process produces biodiesel with excellent quality as well as traditional alkaline transesterification.