How green the Jatropha curcas Biodiesel remains when contaminated with Kerosene?

Biodiesel, an environment friendly and renewable fuel, has emerged as an alternate to conventional diesel fuel. Out of various non-edible oils, Jatropha curcas oil (JCO) as a feedstock for biodiesel, has been gaining the attention of various researchers all over the world. However, growing demand for biodiesel has given birth to mal practices like adulteration to lower its cost and degrade the quality. The present study is carried out to purify and characterize Jatropha curcas biodiesel (JCB) produced from JCO by transesterification process. The JCB was purified by different methods and characterized for its purity. Its adulteration with kerosene oil has been studied using Gas chromatography, 1H-NMR spectroscopy (Proton Nuclear Magnetic Resonance), viscosity, density and TGA (Thermo-Gravimetric Analysis). A number of calibration curves and correlations are developed that can be used to find out the extent of adulteration in biodiesel and eventually to know its impact on engine life and associated emissions