Production of Hydrogen and Synthesis Gas by High Temperature Electrolysis

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    Abstract

    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
    Publication statusPublished - 2009
    EventRisø International Energy Conference 2009 - Risø DTU, Roskilde, Denmark
    Duration: 14 Sep 200916 Sep 2009

    Conference

    ConferenceRisø International Energy Conference 2009
    LocationRisø DTU
    CountryDenmark
    CityRoskilde
    Period14/09/200916/09/2009
    SeriesDenmark. Forskningscenter Risoe. Risoe-R
    Number1712(EN)
    ISSN0106-2840

    Keywords

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

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