Artetxe, M, Alvarez, J, Nahil, MA et al. (2 more authors) (2017) Steam reforming of different biomass tar model compounds over Ni/Al2O3 catalysts. Energy Conversion and Management, 136. pp. 119-126. ISSN 0196-8904
Abstract
This work focuses on the removal of the tar derived from biomass gasification by catalytic steam reforming on Ni/Al2O3 catalysts. Different tar model compounds (phenol, toluene, methyl naphthalene, indene, anisole and furfural) were individually steam reformed (after dissolving each one in methanol), as well as a mixture of all of them, at 700 °C under a steam/carbon (S/C) ratio of 3 and 60 min on stream. The highest conversions and H2 potential were attained for anisole and furfural, while methyl naphthalene presented the lowest reactivity. Nevertheless, the higher reactivity of oxygenates compared to aromatic hydrocarbons promoted carbon deposition on the catalyst (in the 1.5–2.8 wt.% range). When the concentration of methanol is decreased in the feedstock and that of toluene or anisole is increased, the selectivity to CO is favoured in the gaseous products, thus increasing coke deposition on the catalyst and decreasing catalyst activity for the steam reforming reaction. Moreover, an increase in Ni loading in the catalyst from 5 to 20% enhances carbon conversion and H2 formation in the steam reforming of a mixture of all the model compounds studied, but these values decrease for a Ni content of 40%. Coke formation also increased by increasing Ni loading, attaining its maximum value for 40% Ni (6.5 wt.%).
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Elsevier Ltd. This is an author produced version of a paper published in Energy Conversion and Management. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Ni/Al2O3 catalyst; Biomass gasification; Tar model compound; Steam reforming |
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) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Jan 2017 12:46 |
Last Modified: | 12 Jan 2018 01:38 |
Published Version: | https://doi.org/10.1016/j.enconman.2016.12.092 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.enconman.2016.12.092 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:111286 |