Journal
BIORESOURCE TECHNOLOGY
Volume 127, Issue -, Pages 72-80Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.10.020
Keywords
Hydrothermal gasification; Catalysis; Algae; Hydrogen; Nutrient recycling
Funding
- EPSRC [EP/I014365/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [972828, EP/I014365/1] Funding Source: researchfish
Ask authors/readers for more resources
Chlorella vulgaris, Spirulina platensis and Saccharina latissima were processed under supercritical water gasification conditions at 500 degrees C, 36 MPa in an Inconel batch reactor for 30 min in the presence/absence of NaOH and/or Ni-Al2O3. Hydrogen gas yields were more than two times higher in the presence of NaOH than in its absence and tar yields were reduced by up to 71%. Saccharina, a carbohydrate-rich macro-alga, gave the highest hydrogen gas yields of 15.1 mol/kg. The tars from all three algae contained aromatic compounds, including phenols, alkyl benzenes and polycyclic aromatic hydrocarbons as well as heterocyclic nitrogen compounds. Tars from Chlorella and Spirulina contained high yields of pyridines, pyrroles, indoles and pyrimidines. Up to 97% TOC removal were achieved in the process waters from the gasification of the algae. Analyses for specific nutrients in the process waters indicated that the process waters from Saccharina could potentially be used for microalgae cultivation. (C) 2012 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available