Hydrogen production by steam reforming of biomass-derived glycerol over Ni-based catalysts

Seung Hoon Kim, Jae Sun Jung, Eun Hyeok Yang, Kwan Young Lee, Dong Ju Moon

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    44 Citations (Scopus)

    Abstract

    The steam reforming of bio-glycerol for the production of hydrogen has been investigated in a fixed-bed reactor containing spherical particle of Ni supported on γ-Al2O3 as catalyst. Several catalysts were prepared by the dry impregnation method at different calcination temperatures (750-950 °C) with/without the addition of various alkaline promoters (K, Ca, Sr). The physical and chemical properties of the prepared catalysts were characterized by nitrogen (N2) physisorption, X-ray diffraction (XRD), temperature-programmed reduction, thermogravimetric analysis, scanning electron microscopy-energy dispersive X-ray spectroscopy and transmission electron microscopy techniques. The Ni/γ-Al2O 3 catalysts showed a high glycerol conversion and hydrogen selectivity, however they gradually deactivated due to the formation of carbon over those catalysts. Nevertheless, it was found that the catalysts calcined at high temperatures could inhibit the formation of carbon without affecting the glycerol conversion and hydrogen selectivity. The addition of alkaline promoters caused a slight decrease in the glycerol conversion, but also reduced the formation of carbon and thereby increased the long-term stability of the catalyst.

    Original languageEnglish
    Pages (from-to)145-151
    Number of pages7
    JournalCatalysis Today
    Volume228
    DOIs
    Publication statusPublished - 2014 Jun 1

    Bibliographical note

    Funding Information:
    We appreciate the financial support from the Ministry of Trade, Industry and Energy (MOTIE), Republic of Korea via the Project No. 10033687.

    Keywords

    • Alkali promoter
    • Calcination
    • Carbon formation
    • Glycerol
    • Nickel catalyst
    • Steam reforming

    ASJC Scopus subject areas

    • Catalysis
    • General Chemistry

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