Transesterification (Biodiesel Production)

triglyceride + 3CH3OH → 3 FAME + glycerol

概要

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.

参加者

役割 物質 係数 状態
反応物 Methanol CH₃OH 3 (l)
生成物 Glycerol C₃H₈O₃ 1 (l)

日常の例

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

産業上の重要性

世界のバイオディーゼル生産量は年間400億リットルを超える。この反応は植物油や廃油脂を用いた再生可能ディーゼル産業の基盤である。

特性

タイプ
Organic
可逆的
はい
エネルギー
発熱性
ΔH
-12.0 kJ/mol
触媒
NaOH or KOH

関連する反応

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).