A series of Li doped egg shell derived CaO is prepared for biodiesel production from nonedible oil feedstock. The
catalyst is characterized by X-ray diffraction (XRD), Fourier transform infrared spectrometer (FT-IR), Brunauer–
Emmett–Teller (BET) surface area measurements and their basic strengths were measured by Hammett indicators.
Maximum conversion of 94% is observed with 5% of catalyst amount and 2% of Li loading is observed to be
optimum for better conversions. Though the catalyst is not reusable its catalytic activity can be improved by
activating it at appropriate temperature and reloading it with Li. NMR studies showed that the final product
separated after transesterification is biodiesel.