Partial oxidation of methane over fuel cell type reactor for simultaneous generation of synthesis gas and electric power

Tatsumi Ishihara, Takashi Yamada, Taner Akbay, Yusaku Takita

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    57 Citations (Scopus)

    Abstract

    A novel solid oxide fuel cell (SOFC) type catalytic reactor utilizing partial oxidation of methane (CH4 + 1/2O2 = CO+2H2) as internal reforming reaction was investigated in the present study. Large electric power, CO-H2 mixture with molar ratio of 2, and heat energy were obtained simultaneously by applying LaGaO3 based perovskite as electrolyte of fuel cells. Since LaGaO3 based oxide exhibits fast oxide ion conduction, large electric power was obtained. The electric power was further increased by doping small amount of Co or Fe, whilst the open circuit potential decreased due to hole conduction. In spite of 0.5 mm thickness of electrolyte, a maximum power density and yield of synthesis gas were obtained at 731 mW/cm2 and 21 % at 1273 K respectively on the cell for which Fe doped LaGaO3 based oxide was used. In addition, partial oxidation of methane only occurred in the cell, since the molar ratio of formed CO and H2 was always 1/2. Therefore, partial oxidation of methane with SOFC is highly attractive from simultaneous generation of energy and useful compound.

    Original languageEnglish
    Pages (from-to)1535-1540
    Number of pages6
    JournalChemical Engineering Science
    Volume54
    Issue number10
    DOIs
    Publication statusPublished - May 1 1999
    EventProceedings of the 1999 1st International Symposium on Multifunctional Reactors - Amsterdam, NLD
    Duration: Apr 25 1999Apr 28 1999

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Chemical Engineering(all)
    • Industrial and Manufacturing Engineering

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