Pyrolysis of softwood carbohydrates in a fluidized bed reactor

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    Sammanfattning

    In the present work pyrolysis of pure pine wood and softwood carbohydrates, namely cellulose and galactoglucomannan (the major hemicellulose in coniferous wood), was conducted in a batch mode operated fluidized bed reactor. Temperature ramping (5 degrees C/min) was applied to the heating until a reactor temperature of 460 degrees C was reached. Thereafter the temperature was kept until the release of non-condensable gases stopped. The different raw materials gave significantly different bio-oils. Levoglucosan was the dominant product in the cellulose pyrolysis oil. Acetic acid was found in the highest concentrations in both the galactoglucomannan and in the pine wood pyrolysis oils. Acetic acid is most likely formed by removal of O-acetyl groups from mannose units present in GGM structure.
    OriginalspråkOdefinierat/okänt
    Sidor (från-till)1665–1675
    Antal sidor11
    TidskriftInternational Journal of Molecular Sciences
    Volym9
    Utgåva9
    DOI
    StatusPublicerad - 2008
    MoE-publikationstypA1 Tidskriftsartikel-refererad

    Nyckelord

    • bio-oil
    • Cellulose
    • fluidized bed reactor
    • galactoglucomannan
    • pine
    • pyrolysis

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