Synthesis of Biodiesel from Indigenous Xanthium Strumarium (Cocklebur) Non-Edible Oil Available in Assam, India

摘要

Xanthium strumarium seed oils had been investigated as a potential non-edible biodiesel feedstock. The Xanthium strumarium seeds expressed about 38 oil content via solvent extraction technique. Physicochemical parameters of oil such as acid value, iodine value, saponification value, etc. were determined experimentally to prove its feasibility for biodiesel production. The Xanthium strumarium methyl esters or biodiesel were synthesized via transesterification reaction using K2CO3 as a catalyst and a 97 yield was attained at optimum reaction parameters. The characterization of produced biodiesel was done by fourier transform infrared (FTIR), proton nuclear magnetic resonance (~1H NMR) and carbon-13 nuclear magnetic resonance (~(13)C NMR) spectroscopy. Gas chromatography- mass spectrometry (GC-MS) analysis was employed to determine the composition of fatty acid methyl esters of methylated oil. The fuel parameters like density, viscosity, acid value, calorific value, flash point, pour and cloud point of the biodiesel were evaluated as per American Society for Testing and Materials (ASTM) D6751 standard.