Biodiesel production from Custard apple seeds and Euglena Sanguinea using CaO nano-catalyst

This short communication investigated biodiesel production from Euglena Sanguinea microalgae and custard apple using nano CaO as a heterogeneous catalyst. Different solvents were used to extract the oil at a fixed speed, time, and temperature for the samples to estimate the optimized oil yield%. The catalyst was synthesized by sol gel method in nano-scale. It was further characterized by FTIR spectroscopy, SEM, and XRD. The algal oil was pre-treated and trans-esterified with a catalyst to produce alkyl esters. The optimized process variables were determined using response surface methodology by varying parameters such as methanol to oil ratio and catalyst weight% for algal bio-oil and MeOH to oil ratio, time, and catalyst weight% for seed oil. The GC-MS was done to characterize the presence of biodiesel. Kinetic studies were done for the optimized condition for the algal oil and seed oil and it follows the pseudo-first order reaction.

Automated summary

This study investigated the production of biodiesel from Euglena Sanguinea microalgae and custard apple using nano CaO as a heterogeneous catalyst. Different solvents were used for oil extraction, and response surface methodology was employed to determine optimal process variables. Characterization of biodiesel was done using GC-MS, and kinetic studies suggested a pseudo-first order reaction for the optimized condition of algal oil and seed oil.