Abstract
The hydroesterification process is presented for biodiesel production from Nannochloropsis oculata microalgae biomass. Biodiesel studied in this work is the main product from hydroesterification of biomass, the Nannochloropsis oculata, and was obtained from esterification of fatty acid (product of an hydrolysis reaction) with methanol. As catalyst we used the pure niobium oxide (NP) as well as supported on alumina (Nb2O5/Al2O3) (NS) and impregnated with phosphoric acid (Nb2O5/H3PO4) (NIF). The product was evaluated by gas chromatography and other analyses. The optimum conditions found in the conversion (%) for the hydrolysis reactions of Nb2O5 (88.86%), by Nb2O5/Al2O3 (92.00%) and Nb2O5/H3PO4 (95.45%), were observed in the biomass concentration 20%, 300°C. For esterification of fatty acids of Nannochloropsis oculata with NP (86.03%), NS (93.55%) and NIF (95.43%), we observed the molar ratio methanol: fatty acid 3:1, at 200°C with 20% of catalyst. Keywords: Biodiesel, Microalgae, Hydrolysis, Esterification, Nannochloropsis oculata, Niobium oxide catalyst, Alumina, Phosphoric acid.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
