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Chemical CO2 recycling via dry and bi reforming of methane using Ni-Sn/Al2O3 and Ni-Sn/CeO2-Al2O3 catalysts

Stroud, T., Smith, Tristan, Le Saché, Estelle, Santos, J.L., Centeno, M.A., Arellano-Garcia, Harvey, Odriozola, J.A. and Ramirez Reina, Tomas (2018) Chemical CO2 recycling via dry and bi reforming of methane using Ni-Sn/Al2O3 and Ni-Sn/CeO2-Al2O3 catalysts Applied Catalysis B: Environmental, 224. pp. 125-135.

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Abstract

Carbon formation and sintering remain the main culprits regarding catalyst deactivation in the dry and bi-reforming of methane reactions (DRM and BRM, respectively). Nickel based catalysts (10 wt.%) supported on alumina (Al2O3) have shown no exception in this study, but can be improved by the addition of tin and ceria. The effect of two different Sn loadings on this base have been examined for the DRM reaction over 20 h, before selecting the most appropriate Sn/Ni ratio and promoting the alumina base with 20 wt.% of CeO2. This catalyst then underwent activity measurements over a range of temperatures and space velocities, before undergoing experimentation in BRM. It not only showed good levels of conversions for DRM, but exhibited stable conversions towards BRM, reaching an equilibrium H2/CO product ratio in the process. In fact, this work reveals how multicomponent Ni catalysts can be effectively utilised to produce flexible syngas streams from CO2/CH4 mixtures as an efficient route for CO2 utilisation.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Stroud, T.UNSPECIFIEDUNSPECIFIED
Smith, Tristantristan.j.smith@surrey.ac.ukUNSPECIFIED
Le Saché, Estellee.lesache@surrey.ac.ukUNSPECIFIED
Santos, J.L.UNSPECIFIEDUNSPECIFIED
Centeno, M.A.UNSPECIFIEDUNSPECIFIED
Arellano-Garcia, Harveyh.arellano-garcia@surrey.ac.ukUNSPECIFIED
Odriozola, J.A.UNSPECIFIEDUNSPECIFIED
Ramirez Reina, Tomast.ramirezreina@surrey.ac.ukUNSPECIFIED
Date : May 2018
Funders : Engineering and Physical Sciences Research Council (EPSRC)
Identification Number : 10.1016/j.apcatb.2017.10.047
Copyright Disclaimer : © 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).
Uncontrolled Keywords : CO2 utilisation; Dry reforming; Bi-reforming; Ni-Sn catalysts; Syngas
Depositing User : Clive Harris
Date Deposited : 25 Oct 2017 09:58
Last Modified : 09 Nov 2017 13:44
URI: http://epubs.surrey.ac.uk/id/eprint/842654

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