Commercial methods for making fatty acid methyl esters (FAMEs). Base-catalyzed transesterification of the oil with Sodium Methoxide.
What is FAME used for?
- The generic chemical term for biodiesel derived from renewable sources is Fatty Acid Methyl Ester. It is used to supplement or replace mineral diesel and gas oil, which are used to power on- and off-road vehicles as well as static engines.
- It is formed during the biodiesel production process when vegetable oils and animal fats are transesterified. In the presence of a catalyst, usually potassium hydroxide, these high molecular weight oils and fats react with short chain alcohol to produce lower molecular weight esters (FAME).
- Transesterification is the process of separating the three alkoxy groups from the triglyceride's glyceryl backbone. As a byproduct of the reaction with the alcohol, three lower molecular weight esters are formed. The catalyst in the reaction is potassium hydroxide.
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