Study on the trans-esterification reaction of bio-diesel with Jatropha curcas L.oil

The preparation of bio-diesel by using Jatropha curcas L.oil was investigated.The optimum condition for the trans-esterification reaction were :the mole ratio of oil to methanol was 1∶6,1.3% catalyst,the yield of product was higher than 98% after 20 min at 64℃.Moreover,the kinetics of the reaction was investigated,and the rate constants for the transesterification of Jatropha curcas L.oil is 0.6627 L/(min·mol) and 0.9474 L/(min·mol) at 32℃ and 51℃ respectively,the activation energy of reaction is Ea=15.46 kJ/mol.