Production of Hydrogen and Synthesis Gas by High Temperature Electrolysis

Publication: ResearchArticle in proceedings – Annual report year: 2009

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Electrolysis of steam and co-electrolysis of steam and carbon dioxide was studied in stacks composed of Ni/YSZ electrode supported Solid Oxide Electrolysis Cells. The results of this study show that long term electrolysis is feasible in these solid oxide electrolysis stacks. The degradation of the electrolysis cells was found to be influenced by the adsorption of impurities from the gasses, whereas the application of chromium containing interconnect plates and glass sealings do not seem to influence the durability. Cleaning the inlet gasses to the Ni/YSZ electrode resulted in operation without any long term degradation, and may therefore be a solution for operating these Ni/YSZ based solid oxide electrolysis stacks without any long term cell stack degradation.
Original languageEnglish
Title of host publicationEnergy solutions for CO2 emission peak and subsequent decline : Proceedings
Number of pages316
Place of publicationRoskilde
PublisherDanmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi
Publication date2009
Pages162-173
ISBN (print)978-87-550-3783-0
StatePublished

Conference

ConferenceRisø International Energy Conference 2009
CountryDenmark
CityRoskilde
Period14/09/0916/09/09
NameDenmark. Forskningscenter Risoe. Risoe-R
Number1712(EN)
ISSN (Print)0106-2840

Keywords

  • Fuel Cells and hydrogen, Electrolysis, Risø-R-1712, Risø-R-1712(EN)
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