Cherad, R, Onwudili, JA, Williams, PT et al. (1 more author) (2014) A parametric study on supercritical water gasification of Laminaria hyperborea: a carbohydrate-rich macroalga. Bioresource Technology, 169. 573 - 580. ISSN 0960-8524
Abstract
The potential of supercritical water gasification (SCWG) of macroalgae for hydrogen and methane production has been investigated in view of the growing interest in a future macroalgae biorefinery concept. The compositions of syngas from the catalytic SCWG of Laminaria hyperborea under varying parameters including catalyst loading, feed concentration, hold time and temperature have been investigated. Their effects on gas yields, gasification efficiency and energy recovery are presented. Results show that the carbon gasification efficiencies increased with reaction temperature, reaction hold time and catalyst loading but decreased with increasing feed concentrations. In addition, the selectivity towards hydrogen and/or methane production from the SCWG tests could be controlled by the combination of catalysts and varying reaction conditions. For instance, Ru/Al2O3 gave highest carbon conversion and highest methane yield of up to 11 mol/kg, whilst NaOH produced highest hydrogen yield of nearly 30 mol/kg under certain gasification conditions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2014, Elsevier Ltd. All rights reserved. This is an author produced version of a paper published in Bioresource Technology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Algae biorefinery; Hydrothermal gasification; Macroalgae; Syngas; Bioreactors; Biotechnology; Carbohydrates; Catalysis; Gases; Hot Temperature; Laminaria; Seaweed; Time Factors; Water |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Research Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 27 Jul 2015 10:55 |
Last Modified: | 15 Jan 2018 18:44 |
Published Version: | http://dx.doi.org/10.1016/j.biortech.2014.07.046 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.biortech.2014.07.046 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:85320 |