Transesterification (Biodiesel Production)

triglyceride + 3CH3OH → 3 FAME + glycerol

概述

Triglyceride fats react with methanol in the presence of a base catalyst to produce fatty acid methyl esters (FAME, biodiesel) and glycerol. Each triglyceride molecule produces three molecules of biodiesel. This transesterification reaction replaces glycerol with methanol at the ester linkages.

参与者

角色 物质 系数 状态
反应物 Methanol CH₃OH 3 (l)
产物 Glycerol C₃H₈O₃ 1 (l)

日常示例

Biodiesel can be made at home from waste cooking oil using this reaction with methanol and lye (NaOH).

工业重要性

全球生物柴油年产量超过400亿升，是可再生清洁燃料的重要来源，同时副产高值甘油用于化妆品和制药行业。

属性

类型
Organic
可逆
是
能量
放热
ΔH
-12.0 kJ/mol
催化剂
NaOH or KOH

相关反应

Epoxidation of Alkenes (mCPBA) Swern Oxidation Oxidation of Secondary Alcohol to Ketone E2 Elimination (Dehydrohalogenation) Claisen Condensation (Ethyl Acetate) Aldol Condensation of Acetaldehyde Kolbe Electrolysis Baeyer-Villiger Oxidation Beckmann Rearrangement (Cyclohexanone Oxime) Dehydration of Ethanol

Frequently Asked Questions

What is the equation for Transesterification (Biodiesel Production)?
The balanced equation is: triglyceride + 3CH₃OH → 3 FAME + glycerol.
What type of reaction is Transesterification (Biodiesel Production)?
Transesterification (Biodiesel Production) is a organic reaction. It is reversible under certain conditions.
Is Transesterification (Biodiesel Production) exothermic or endothermic?
Transesterification (Biodiesel Production) is exothermic (releases energy). The enthalpy change (ΔH) is -12.0 kJ/mol.
What conditions are needed for Transesterification (Biodiesel Production)?
This reaction requires a catalyst (NaOH or KOH).