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Biogas Upgrading Via Dry Reforming Over a Ni-Sn/CeO2-Al2O3 Catalyst: Influence of the Biogas Source

Le Saché, Estelle, Johnson, Sarah, Pastor-Pérez, Laura, Amini Horri, Bahman and Reina, Tomas (2019) Biogas Upgrading Via Dry Reforming Over a Ni-Sn/CeO2-Al2O3 Catalyst: Influence of the Biogas Source Energies, 12 (6).

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Abstract

Biogas is a renewable, as well as abundant, fuel source which can be utilised in the production of heat and electricity as an alternative to fossil fuels. Biogas can additionally be upgraded via the dry reforming reactions into high value syngas. Nickel-based catalysts are well studied for this purpose but have shown little resilience to deactivation caused by carbon deposition. The use of bi-metallic formulations, as well as the introduction of promoters, are hence required to improve catalytic performance. In this study, the effect of varying compositions of model biogas (CH4/CO2 mixtures) on a promising multicomponent Ni-Sn/CeO2-Al2O3 catalyst was investigated. For intermediate temperatures (650 °C), the catalyst displayed good levels of conversions in a surrogate sewage biogas (CH4/CO2 molar ratio of 1.5). Little deactivation was observed over a 20 h stability run, and greater coke resistance was achieved, related to a reference catalyst. Hence, this research confirms that biogas can suitably be used to generate H2-rich syngas at intermediate temperatures provided a suitable catalyst is employed in the reaction.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Le Saché, Estellee.lesache@surrey.ac.uk
Johnson, Sarah
Pastor-Pérez, Laura
Amini Horri, Bahmanb.aminihorri@surrey.ac.uk
Reina, Tomas
Date : 15 March 2019
Funders : Engineering and Physical Sciences Research Council (EPSRC), Royal Society
DOI : 10.3390/en12061007
Copyright Disclaimer : © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords : Biogas; Syngas production; DRM; Ni catalyst; Bi-metallic catalyst; Ceria-alumina
Depositing User : Clive Harris
Date Deposited : 05 Apr 2019 13:35
Last Modified : 05 Apr 2019 13:38
URI: http://epubs.surrey.ac.uk/id/eprint/850980

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