Thermodynamic assessment of non-catalytic Ceria for syngas production by methane reduction and CO2 + H2O oxidation

Show simple item record Bose, Archishman Farooqui, Azharuddin Ferrero, Domenico Santarelli, Massimo Llorca, Jordi 2019-11-20T06:03:10Z 2019-11-20T06:03:10Z 2019-01-31
dc.identifier.citation Bose, A., Farooqui, A., Ferrero, D., Santarelli, M. and Llorca, J., 2019. Thermodynamic assessment of non-catalytic Ceria for syngas production by methane reduction and CO 2+ H 2 O oxidation. Materials for Renewable and Sustainable Energy, 8(1), (5). DOI:10.1007/s40243-019-0142-3 en
dc.identifier.volume 8 en
dc.identifier.issued 1 en
dc.identifier.startpage 1 en
dc.identifier.endpage 15 en
dc.identifier.issn 2194-1459
dc.identifier.doi 10.1007/s40243-019-0142-3 en
dc.description.abstract Chemical looping syngas production is a two-step redox cycle with oxygen carriers (metal oxides) circulating between two interconnected reactors. In this paper, the performance of pure CeO2/Ce2O3 redox pair was investigated for low-temperature syngas production via methane reduction together with identification of optimal ideal operating conditions. Comprehensive thermodynamic analysis for methane reduction and water and CO2 splitting was performed through process simulation by Gibbs free energy minimization in ASPEN Plus®. The reduction reactor was studied by varying the CH4/CeO2 molar ratio between 0.4 and 4 along with the temperature from 500 to 1000 °C. In the oxidation reactor, steam and carbon dioxide mixture oxidized the reduced metal back to CeO2, while producing simultaneous streams of CO and H2 respectively. Within the oxidation reactor, the flow and composition of the mixture gas were varied, together with reactor temperature between 500 and 1000 °C. The results indicate that the maximum CH4 conversion in the reduction reactor is achieved between 900 and 950 °C with CH4/CeO2 ratio of 0.7–0.8, while, for the oxidation reactor, the optimal condition can vary between 600 and 900 °C based on the requirement of the final product output (H2/CO). The system efficiency was around 62% for isothermal operations at 900 °C and complete redox reaction of the metal oxide. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Springer Verlag en
dc.rights © The Author(s) 2019 en
dc.rights.uri en
dc.subject Oxygen carriers en
dc.subject Ceria en
dc.subject Chemical looping en
dc.subject Syngas en
dc.subject Thermodynamic analysis en
dc.title Thermodynamic assessment of non-catalytic Ceria for syngas production by methane reduction and CO2 + H2O oxidation en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Archishman Bose, MaREI Centre, Environmental Research Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email: en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Materials for Renewable and Sustainable Energy en
dc.internal.IRISemailaddress en
dc.identifier.articleid 5 en
dc.identifier.eissn 2194-1467

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