Among the different routes for the conversion of vegetable oils,transesterification and catalytic cracking have arisen high interest in recent years [4,5]. Transesterification of triglyceride molecules with an alcohol yields biodiesel and glycerin [6,7]. Biodiesel canbe blended with petroleum based fuels in diesel engines. Glycerinalso has uses in a variety of industries, but its excessive production,roughly 10% of the feedstock, is becoming this product in a wasteproblem.