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  • An investigation of thermal behaviour of biomass and coal during copyrolysis using thermogravimetric analysis

    Author(s)
    Vhathvarothai, Navirin
    Ness, James
    Yu, Jimmy
    Griffith University Author(s)
    Yu, Jimmy J.
    Year published
    2014
    Metadata
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    Abstract
    The thermal behaviour and kinetic analysis of biomass (cypress wood chips and macadamia nut shells) and Australian bituminous coal during combustion were studies using the thermogravimetric technique with four different heating rates under an air atmosphere. Each type of biomass was blended with coal at mass ratios (biomass:coal) of 95:5, 90:10, 85:15 and 80:20 to investigate the effect of coal as a supplementary fuel on thermal behaviour during the combustion process. Combustion of the individual samples and the blends took place in three steps comprising dehydration, devolatilisation and char oxidation. During co-combustion, ...
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    The thermal behaviour and kinetic analysis of biomass (cypress wood chips and macadamia nut shells) and Australian bituminous coal during combustion were studies using the thermogravimetric technique with four different heating rates under an air atmosphere. Each type of biomass was blended with coal at mass ratios (biomass:coal) of 95:5, 90:10, 85:15 and 80:20 to investigate the effect of coal as a supplementary fuel on thermal behaviour during the combustion process. Combustion of the individual samples and the blends took place in three steps comprising dehydration, devolatilisation and char oxidation. During co-combustion, the thermal decomposition behaviour of the blends followed that of the weighted average of the individual samples in the blends. In kinetic analysis, thermal decomposition of biomass and coal appeared to take place independently, and thus, the activation energy of the blends can be calculated from that of the two components. No evidence for any significant synergetic effects or thermal interaction was found between either type of biomass and the coal during co-combustion based on the lack of deviation from expected behaviour of the blends.
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    Journal Title
    International Journal of Energy Research
    Volume
    38
    Issue
    9
    DOI
    https://doi.org/10.1002/er.3083
    Subject
    Chemical engineering
    Mechanical engineering
    Publication URI
    http://hdl.handle.net/10072/56954
    Collection
    • Journal articles

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