Alumina/silica supported K2CO3 as a catalyst for biodiesel synthesis from sunflower oil

被引：177

作者：

Lukic, I. ^{[1
]}

Krstic, J. ^{[2
]}

Jovanovic, D. ^{[2
]}

Skala, D. ^{[1
]}

机构：

[1] Univ Belgrade, Fac Technol & Met, Belgrade 11000, Serbia

[2] Inst Chem Technol & Met, Dept Catalysis & Chem Engn, Belgrade 11000, Serbia

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 20期

关键词：

Biodiesel; Methanolysis; Heterogeneous catalyst; Alumina/silica; K2CO3; SOLID-BASE CATALYST; FIXED-BED REACTOR; PALM KERNEL OIL; SOYBEAN OIL; HETEROGENEOUS CATALYST; FUEL PRODUCTION; COCONUT OIL; TRANSESTERIFICATION; ALKALI; HYDROGENATION;

D O I：

10.1016/j.biortech.2009.04.057

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The new type of catalyst for fatty acid methyl esters (FAME or biodiesel) synthesis with K2CO3 as active component on alumina/silica support was synthesized using sol-gel method. Corresponding catalyst (xerogel) was prepared by 12 h drying the wet gel in air at 300 degrees C, 600 degrees C or 1000 degrees C at atmospheric pressure. The catalysts activity in the methanolysis of sunflower oil was compared to the activity of the pure K2CO3. The effects of various reaction variables on the yield of FAME were investigated. It was found that the temperature of 120 degrees C and methanol to oil molar ratio of 15: 1, are optimal conditions for FAME synthesis with synthesized catalyst. Repeated use of same amount of catalyst indicated that effect of potassium leaching obviously existed leading to decrease of catalyst activity. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：4690 / 4696

页数：7

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