Conclusions
Excellent catalysts for the transesterification of jatropha oil,
highly active even at room temperature were developed from coconut
husk. At a reaction temperature of 45 C, with the catalyst
prepared by the calcination of coconut husk at 350 C, the FAME
content of biodiesel was found to be more than 97% within 30 min
of reaction time. To the best of our knowledge this is the most active