Biodiesel is produced from the transesteri
fi
cation reaction of
triglycerides from vegetable oils or fats with alcohols like methanol
and ethanol in the presence of a homogenous base catalyst like NaOH
or KOH
[5]
to yield fatty acid alkyl esters (i.e., biodiesel) and glycerol
[6]
. Over 90% of biodiesel production in Thailand uses palm oil as the