Hydrogen production by steam reforming of methane over mixed Ni/MgAl + CrFe3O4 catalysts

  • Na Young Kim
  • , Eun Hyeok Yang
  • , Sung Soo Lim
  • , Jae Sun Jung
  • , Jae Suk Lee
  • , Gi Hoon Hong
  • , Young Su Noh
  • , Kwan Young Lee
  • , Dong Ju Moon*
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    Steam reforming of methane (SRM) was performed over a mixed Ni/MgAl + CrFe3O4 catalyst. The catalyst was prepared by physical mixing method and it was compared to Ni/MgAl and iron or chromium promoted M/Ni/MgAl catalysts prepared by impregnation method. Catalysts were characterized by various analytical techniques such as nitrogen physisorption, TPR, XRD, TGA and SEM. The catalytic activity in a fixed-bed reactor was investigated at a temperature range of 500-700 °C, 1 bar pressure and feed molar ratio of H2O/CH4 = 2. TPR and XRD illustrated that segregated Ni particles were observed with promoted M-Ni/MgAl catalysts and it leads to reduce the active Ni metal. The addition of the Cr/Fe3O4 catalyst activates steam and easily reacts with methane. Consequently, physically mixed catalysts showed higher hydrogen selectivity and methane conversion than the other catalysts.

    Original languageEnglish
    Pages (from-to)11848-11854
    Number of pages7
    JournalInternational Journal of Hydrogen Energy
    Volume40
    Issue number35
    DOIs
    Publication statusPublished - 2015 Sept 21

    Bibliographical note

    Funding Information:
    This work was supported and funded by Korea Institute of Science and Technology (Project No. 2E25404 ) and supported and funded by Ministry of Trade, Industry and Energy Republic of Korea (Project No. 20142010102790 ).

    Keywords

    • Hydrogen production
    • Physically mixed catalyst
    • Steam reforming
    • WGS reaction

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Fuel Technology
    • Condensed Matter Physics
    • Energy Engineering and Power Technology

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