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    Bed Agglomeration during Bio-oil Fast Pyrolysis in a Fluidized-Bed Reactor

    Access Status
    Fulltext not available
    Authors
    Gao, Wenran
    Zhang, Mingming
    Wu, Hongwei
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Gao, W. and Zhang, M. and Wu, H. 2018. Bed Agglomeration during Bio-oil Fast Pyrolysis in a Fluidized-Bed Reactor. Energy & Fuels. 32: pp. 3608-3613.
    Source Title
    Energy & Fuels
    DOI
    10.1021/acs.energyfuels.8b00333
    ISSN
    0887-0624
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/67417
    Collection
    • Curtin Research Publications
    Abstract

    This study investigates bed agglomeration during fast pyrolysis of bio-oil in a fluidized-bed reactor at temperatures of 500-800 °C. The samples used include bio-oil, bio-oil water-soluble fraction (WSF), bio-oil water-insoluble fraction (WIF), and selected model compounds. Increasing pyrolysis temperature from 500 to 800 °C decreases the agglomeration yields of biooil, WSF, and WIF from 40% to 15%, 26.2% to 11.6%, and 15.0% to 5.2%, respectively. Investigation using model compounds suggests that the interactions between lignin-derived oligomers and sugar are mainly responsible for the high bed agglomeration yields of bio-oil and WSF, and such interactions weaken as pyrolysis temperature increases. Water has an insignificant effect on bed agglomeration during bio-oil or WSF pyrolysis. The results also show that the bed agglomeration yield and the formation of tar (and/or coke) are in broad linear correlations, indicating that the tar (and/or coke) formed during fast pyrolysis contributes to the bed agglomeration of bio-oil. The linear correlation from the data of bio-oil has a steeper gradient compared to that of WSF and WIF, clearly indicating the synergy taking place between the WSF and WIF during fast pyrolysis in enhancing bed agglomeration.

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