Nakpong, Piyanuch; Wootthikanokkhan, Sasiwimol - In: Renewable Energy 35 (2010) 8, pp. 1682-1687
Coconut oil having 12.8% free fatty acid (FFA) was used as a feedstock to produce biodiesel by a two-step process. In the first step, FFA level of the coconut oil was reduced to 0.6% by acid-catalyzed esterification. In the second step, triglycerides in product from the first step were...