Direct Hysteresis Heating of Catalytically Active Ni–Co Nanoparticles as Steam Reforming Catalyst

Peter Mølgaard Mortensen, Jakob Soland Engbæk, Søren Bastholm Vendelbo, Mikkel Fougt Hansen, Martin Østberg

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    We demonstrated a proof-of-concept catalytic steam reforming flow reactor system heated only by supported magnetic nickel–cobalt nanoparticles in an oscillating magnetic field. The heat transfer was facilitated by the hysteresis heating in the nickel–cobalt nanoparticles alone. This produced a sufficient power input to equilibrate the reaction at above 780 °C with more than 98% conversion of methane. The high conversion of methane indicated that Co-rich nanoparticles with a high Curie temperature provide sufficient heat to enable the endothermic reaction, with the catalytic activity facilitated by the Ni content in the nanoparticles. The magnetic hysteresis losses obtained from temperature-dependent hysteresis measurements were found to correlate well with the heat generation in the system. The direct heating of the catalytic system provides a fast heat transfer and thereby overcomes the heat-transfer limitation of the industrial-scale steam reformer. This could consequently enable a more compact steam reformer design.
    Original languageEnglish
    JournalIndustrial and Engineering Chemistry Research
    Volume56
    Issue number47
    Pages (from-to)14006–14013
    ISSN0888-5885
    DOIs
    Publication statusPublished - 2017

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