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

被引：61

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

页码：1242 / 1248

页数：7

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