Lookup NU author(s): Dr Sharon Velasquez Orta,
Professor Adam Harvey,
Professor Maria Orta Ledesma
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
© 2018 Elsevier Ltd This work explored bio-crude oil production and the hydrocarbon distribution resulting from a catalytic HTL process with a feedstock composed by native consortium of microalgae (mostly cyanobacteria) with low lipid and high protein content. Two harvesting methods ozone-flotation and centrifugation were compared. Also, the effect of the catalysts, HZSM-5 zeolite, content (0, 5 and 7 wt% loading with respect to dry biomass) were studied. The dry biomass was liquefied in water (slurry at 4 wt%) at 350 °C for 120 min. Results showed that the bio-crude contained aliphatic, aromatic, cyclic, oxygenated cyclic and aliphatic compounds containing N and O, with a bio-crude yield of between 10 and 16%. The best quality of bio-crude oil was produced from microalgae harvested and pretreated by ozone-flotation at 7 wt% HZSM-5. The increase in the bio-crude quality was a result of a lower nitrogen (3.2%), oxygen (4.8%) and sulfur (0.7%) content versus centrifuged (no catalyst) microalgae 4.6%, 7.9% and 1.6% respectively.
Author(s): Nava Bravo I, Velasquez-Orta SB, Cuevas-Garcia R, Monje-Ramirez I, Harvey A, Orta Ledesma MT
Publication type: Article
Publication status: Published
Print publication date: 01/04/2019
Online publication date: 18/12/2018
Acceptance date: 13/12/2018
Date deposited: 26/02/2019
ISSN (print): 0016-2361
ISSN (electronic): 1873-7153
Publisher: Elsevier Ltd
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