Production of Biodiesel from Jatropha Curcas by using Heterogenous Dopped Zinc Oxide

Abstract

Heterogenous copper based nano catalyst was synthesized by Co-precipitation method. The effect of nano catalyst particle size from 0.5 to 52 nm was investigated. The Cupper dopped zinc oxide the nano particle size was used from 0.5 to 52 nm, and Transesterification method was used to produce the biodiesel. The optimum yield of bio-biodiesel was obtained 92% from Jatropha Curcas seed oil. SEM shows the surface morphology, topography, composition, crystallographic and structural shape of synthesized Cu-ZnO nano catalyst. XRD and EDX results depicted good morphology of prepared catalyst. XRD and EDX also displays the pattern of a model Cu-ZnO. FTIR results showed the major functional groups identified were alkanes , aromatics and carboxylic acid . Among these functional groups, alkanes were qualitatively noted to be the main constituents which indicate the good catalytic cracking activity of the catalyst.The UV, absorbance peak indicated the presence of ZnO nanoparticles, which is in accordance of UV absorbance result shown by previous studies. The effect of temperature on biodiesel yield showed from higher yield with 45 o C from 64.33 to 80 ml of ethanol concentration at 45 o C. On further rise in temperature resulted 92% product yield. Furthermore, effect of methanol on bio- diesel yield showed that, as the methanol ratio subsequently increased from 1: 05 to 1: 12increased the product yield. Besides this, the heterogeneous nano catalyst showed good catalytic activity in transforming Jatropha seed oil up to 92% of biodiesel yield.