Biodiesel production from refined sunflower oil over Ca-Mg-Al catalysts: Effect of the composition and the thermal treatment

被引：58
|
作者：
Dahdah, Eliane [1 ,2 ]
Estephane, Jane [3 ]
Haydar, Reem [3 ]
Youssef, Yara [3 ]
El Khoury, Bilal [1 ]
Gennequin, Cedric [2 ]
Aboukais, Antoine [2 ]
Abi-Aad, Edmond [2 ]
Aouad, Samer [1 ]
机构：
[1] Univ Balamand, Fac Arts & Sci, Dept Chem, POB 100, Tripoli, Lebanon
[2] Univ Littoral Cote dOpale, MREI, UCEIV, EA 4492, F-59140 Dunkerque, France
[3] Univ Balamand, Fac Engn, Dept Chem Engn, POB 100, Tripoli, Lebanon
来源：
RENEWABLE ENERGY | 2020年 / 146卷
关键词：
Biodiesel; Transesterification; Ca-Mg-Al; Catalyst; Vegetable oil; Hydrotalcite; SOLID BASE CATALYSTS; HETEROGENEOUS CATALYSTS; PALM OIL; HYDROTALCITE-LIKE; CALCIUM-OXIDE; RAPESEED OIL; MIXED-OXIDE; SOYBEAN OIL; TRANSESTERIFICATION; HYDROGEN;
D O I：
10.1016/j.renene.2019.06.171
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Different Ca-Mg-Al catalysts were prepared by the hydrotalcite route using co-precipitation and impregnation techniques. The effect of thermal treatment was studied and the obtained mixed oxides were characterized by X-ray diffraction, N-2 adsorption-desorption and CO2-temperature programmed desorption. Catalysts were then tested in the transesterification of sunflower oil. The catalyst that showed the best catalytic performance was an uncalcined Mg4Al2 support impregnated with 40 wt% of calcium followed by a calcination at 600 degrees C (Ca600/Mg4Al2HT). Optimum conditions for biodiesel production over this catalyst were a reaction time of 6 h, a catalyst to oil ratio of 2.5 wt%, a 15:1 methanol to oil molar ratio, a stirring rate of 400 rpm and a temperature of 60 degrees C giving a final FAME yield of 95%. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1242 / 1248
页数：7
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