Production of biodiesel from crude palm oil by a sequential hydrolysis/esterification process using subcritical water

被引：34
|
作者：
dos Santos, Leticia Karen [1 ]
Hatanaka, Rafael Rodrigues [1 ]
de Oliveira, Jose Eduardo [1 ]
Flumignan, Danilo Luiz [1 ,2 ]
机构：
[1] Sao Paulo State Univ, UNESP, Ctr Monitoring & Res Qual Fuels Biofuels Crude Oi, Inst Chem,Organ Chem Dept, Rua Prof Francisco Degni,55 Quitandinha, BR-14800900 Araraquara, SP, Brazil
[2] Sao Paulo Fed Inst Educ Sci & Technol IFSP, Campus Matao,Rua Estefano Davassi, BR-15991502 Matao, SP, Brazil
来源：
RENEWABLE ENERGY | 2019年 / 130卷
关键词：
Hydroesterification; Free fatty acids; Crude palm oil; Alkyl esters; Response surface methodology; Optimization; SOLID ACID CATALYSTS; WASTE COOKING OIL; SUPERCRITICAL METHANOL; VEGETABLE-OILS; SUNFLOWER OIL; FATTY-ACIDS; HYDROLYSIS; ESTERIFICATION; KINETICS; HYDROESTERIFICATION;
D O I：
10.1016/j.renene.2018.06.102
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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 degrees 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. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：633 / 640
页数：8
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