Preparation of Na doped SiO2 solid catalysts by the sol-gel method for the production of biodiesel from jatropha oil

作者：Akbar Emil^*; Binitha Narayanan; Yaakob Zahira; Kamarudin Siti Kartom; Salimon Jumat

来源：Green Chemistry, 2009, 11(11): 1862-1866.

DOI：10.1039/b916263c

A new solid catalyst, Na/SiO2, which have come in demand recently due to environmental concerns is prepared using the sol gel method by transesterification of jatropha oil with methanol to produce a biodiesel fatty acid methyl ester. Na/SiO2 with a loading of 50 : 50 molar ratio Na/Si, calcined at 600 degrees C exhibited the best catalytic activity for the reaction. The conversion of vegetable oil is found to be 99%. The optimum reaction conditions are achieved at the reflux temperature of methanol (65 degrees C), with a 1 : 15 molar ratio of methanol to oil and a catalyst amount of 6 wt%. The catalyst showed high activity under mild conditions and at a relatively short reaction time of 45 min.

• 出版日期2009