Fatty Acid Methyl Ester Biodiesel
Fatty Acid Methyl Ester (FAME) is produced during the transesterification of vegetable and animal oils. The physical qualities of fatty acid esters are more similar to fossil fuels than those of vegetable oil, but they vary depending upon the type of vegetable oil. FAME has physical qualities similar to traditional diesel. It is non-toxic and biodegradable as well.
How is FAME Diesel Produced?
Using the process of transesterification, vegetable oils, animal fats and waste cooking oil is used to create FAME. A glyceride combines with alcohol in the presence of a catalyst to generate a mixture of fatty acid esters and alcohol during the transesterification process. When triglycerides are used, glycerol is produced.
Transesterification is a reversible process that takes place by combining all the reactants. As a catalyst, a base or acid might be utilised. As catalysts, sodium or potassium methanolate is commonly used. Although current pump diesel contains up to 7% FAME, higher level of FAME content up to 100% are not rare.
What is Transesterification?
When an ester is exposed to a large amount of alcohol in the presence of either an acid or base, alkoxyl groups can swap. An excessive amount of alcohol is used to propel the reaction forward. As a by-product of the reaction with the alcohol, three lower molecular weight esters (FAME) are formed. Our FAME biodiesel suppliers use the most prevalent transesterification process, which occurs with the reaction of an ester with alcohol in the presence of an acid catalyses.