Synthesis of biodiesel in supercritical fluids

被引：296

作者：

Madras, G ^{[1
]}

Kolluru, C ^{[1
]}

Kumar, R ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Chem Engn, Bangalore 560012, Karnataka, India

来源：

FUEL | 2004年 / 83卷 / 14-15期

关键词：

biodiesel; transesterification; novozym-435 (Candida Antarctica); supercritical methanol; supercritical ethanol; supercrifical carbon dioxide;

D O I：

10.1016/j.fuel.2004.03.014

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Biodiesel. an alternative biodegradable diesel fuel, is derived from triglycerides by transesterification with alcohols. In this work, the transesterification of sunflower oil was investigated in supercritical methanol and supercritical ethanol at various temperatures (200-400 degreesC) at 200 bar. The rate coefficients and the activation energies of the reaction were also determined. Biodiesel was also enzymatically synthesized in supercritical carbon dioxide. The effect of enzyme loading, oil to alcohol ratio, reaction time and temperature was investigated. While nearly complete conversions were obtained for the thermal reactions in supercritical methanol and ethanol, only 30% conversions were obtained in the enzyme-catalyzed reactions in supercritical carbon dioxide. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：2029 / 2033

页数：5

共 22 条

[1] UTILIZATION PROSPECTS OF TURKISH RAISIN SEED OIL AS AN ALTERNATIVE ENGINE FUEL [J].