Biocrude yield and productivity from the hydrothermal liquefaction of marine and freshwater green macroalgae

Neveux, N., Yuen, A.K.L., Jazrawi, C., Magnusson, M., Haynes, B.S., Masters, A.F., Montoya, A., Paul, N.A., Maschmeyer, T., and de Nys, R. (2014) Biocrude yield and productivity from the hydrothermal liquefaction of marine and freshwater green macroalgae. Bioresource Technology, 155. pp. 334-341.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website:


Six species of marine and freshwater green macroalgae were cultivated in outdoor tanks and subsequently converted to biocrude through hydrothermal liquefaction (HTL) in a batch reactor. The influence of the biochemical composition of biomass on biocrude yield and composition was assessed. The freshwater macroalgae Oedogonium afforded the highest biocrude yield of all six species at 26.2%, dry weight (dw). Derbesia (19.7% dw) produced the highest biocrude yield for the marine species followed by Ulva (18.7% dw). In contrast to significantly different yields across species, the biocrudes elemental profiles were remarkably similar with higher heating values of 33–34 MJ kg−1. Biocrude productivity was highest for marine Derbesia (2.4 g m−2 d−1) and Ulva (2.1 g m−2 d−1), and for freshwater Oedogonium (1.3 g m−2 d−1). These species were therefore identified as suitable feedstocks for scale-up and further HTL studies based on biocrude productivity, as a function of biomass productivity and the yield of biomass conversion to biocrude.

Item ID: 31140
Item Type: Article (Research - C1)
ISSN: 1873-2976
Keywords: algae, seaweed, hydrothermal liquefaction, bioenergy, cultivation
Funders: Australian Renewable Energy Agency (ARENA), Australian Research Council (ARC), Advanced Manufacturing Cooperative Research Centre (AMCRC)
Projects and Grants: ARC DP1096802
Date Deposited: 18 Feb 2014 23:04
FoR Codes: 10 TECHNOLOGY > 1003 Industrial Biotechnology > 100302 Bioprocessing, Bioproduction and Bioproducts @ 100%
SEO Codes: 85 ENERGY > 8505 Renewable Energy > 850501 Biofuel (Biomass) Energy @ 100%
Downloads: Total: 6
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page