OIL is transformed into biodiesel through a process called transesterification. It involves reacting an alcohol (like methanol) with the triglyceride oils contained in fats and greases, forming fatty acid alkyl esters (biodiesel) and glycerine. The reaction requires heat and a strong base catalyst, such as sodium hydroxide or potassium hydroxide. Here’s a brief description of the process to convert oil into biodiesel:
> Used cooking oil is first filtered through a wire mesh to remove food particles and other contaminants. It is left to stand for several hours to allow water residues to settle.
