Hydrogen and synthetic fuel production using pressurized solid oxide electrolysis cells

Jensen, Soren Hojgaard, Sun, Xiufu, Ebbesen, Sune Dalgaard, Knibbe, Ruth and Mogensen, Mogens (2010) Hydrogen and synthetic fuel production using pressurized solid oxide electrolysis cells. International Journal of Hydrogen Energy, 35 18: 9544-9549. doi:10.1016/j.ijhydene.2010.06.065


Author Jensen, Soren Hojgaard
Sun, Xiufu
Ebbesen, Sune Dalgaard
Knibbe, Ruth
Mogensen, Mogens
Title Hydrogen and synthetic fuel production using pressurized solid oxide electrolysis cells
Journal name International Journal of Hydrogen Energy   Check publisher's open access policy
ISSN 0360-3199
1879-3487
Publication date 2010-09-01
Year available 2010
Sub-type Article (original research)
DOI 10.1016/j.ijhydene.2010.06.065
Open Access Status Not yet assessed
Volume 35
Issue 18
Start page 9544
End page 9549
Total pages 6
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Abstract Wind and solar power is troubled by large fluctuations in delivery due to changing weather. The surplus electricity can be used in a Solid Oxide Electrolyzer Cell (SOEC) to split CO(2) + H(2)O into CO + H(2) (+O(2)). The synthesis gas (CO + H(2)) can subsequently be catalyzed into various types of synthetic fuels using a suitable catalyst. As the catalyst operates at elevated pressure the fuel production system can be simplified by operating the SOEC at elevated pressure. Here we present the results of a cell test with pressures ranging from 0.4 bar to 10 bar. The cell was tested both as an SOEC and as a Solid Oxide Fuel Cell (SOFC). In agreement with previous reports, the SOFC performance increases with pressure. The SOEC performance, at 750 degrees C, was found to be weakly affected by the pressure range in this study, however the internal resistance decreased significantly with increasing pressure. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
Formatted abstract
Wind and solar power is troubled by large fluctuations in delivery due to changing weather. The surplus electricity can be used in a Solid Oxide Electrolyzer Cell (SOEC) to split CO2 + H2O into CO + H2 (+O2). The synthesis gas (CO + H2) can subsequently be catalyzed into various types of synthetic fuels using a suitable catalyst. As the catalyst operates at elevated pressure the fuel production system can be simplified by operating the SOEC at elevated pressure. Here we present the results of a cell test with pressures ranging from 0.4 bar to 10 bar. The cell was tested both as an SOEC and as a Solid Oxide Fuel Cell (SOFC). In agreement with previous reports, the SOFC performance increases with pressure. The SOEC performance, at 750 °C, was found to be weakly affected by the pressure range in this study, however the internal resistance decreased significantly with increasing pressure.
Keyword Performance
Planar
Pressure
Solid oxide cell
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mechanical & Mining Engineering Publications
 
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