Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Effects of thermal pretreatment and ex-situ grinding on the pyrolysis of mallee wood cylinders

    Access Status
    Fulltext not available
    Authors
    Jiang, S.
    Hu, X.
    Shao, X.
    Song, Y.
    Xia, D.
    Li, Chun-Zhu
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Jiang, S. and Hu, X. and Shao, X. and Song, Y. and Xia, D. and Li, C. 2017. Effects of thermal pretreatment and ex-situ grinding on the pyrolysis of mallee wood cylinders. Fuel Processing Technology. 159: pp. 211-221.
    Source Title
    Fuel Processing Technology
    DOI
    10.1016/j.fuproc.2017.01.045
    ISSN
    0378-3820
    School
    Fuels and Energy Technology Institute
    URI
    http://hdl.handle.net/20.500.11937/51176
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Elsevier B.V.This study investigated the effects of thermal pretreatment and ex-situ grinding on the production of bio-oil and biochar from the pyrolysis of mallee wood cylinders in a fluidised-bed reactor. The wood cylinders were firstly pretreated at 150–380 °C and were then crushed into small particles before further pyrolysis at 500 °C. Thermal pretreatment alone for wood cylinders could not promote the bio-oil yield. Combined thermal pretreatment at low temperatures and subsequent grinding facilitated the formation of bio-oil and minimised the formation of biochar. This is because the thermal pretreatment and grinding partially destroyed the cell wall structure and improved the mass transfer of volatiles exiting from the particles during the subsequent pyrolysis. However, if the pretreatment temperature was above 260 °C, the biochar yields increased due to the cross-linking and charring reactions. These charring reactions compromised the beneficial effects of grinding, leading to decreases in the formation of bio-oil. The balance between thermal pretreatment and grinding needed to be delicately managed to maximise the formation of bio-oil. The pretreatment temperature would significantly affect the composition of bio-oil from the ex-situ grinding pyrolysis. The controlled pretreatment temperature could somewhat “activate” lignin or cause cross-linked bonds in biomass which was responsible for the formation of aromatics.

    Related items

    Showing items related by title, author, creator and subject.

    • High energy density fuels derived from mallee biomass: fuel properties and implications
      Abdullah, Hanisom binti (2010)
      Mallee biomass is considered to be a second-generation renewable feedstock in Australia and will play an important role in bioenergy development in Australia. Its production is of large-scale, low cost, small carbon ...
    • Effect of pretreatment temperature on the yield and properties of bio-oils obtained from the auger pyrolysis of Douglas fir wood
      Liaw, S.; Zhou, S.; Wu, Hongwei; Garcia-Perez, M. (2013)
      This paper investigates the effect of thermal pretreatment temperatures between 200 and 370 C on the yield and composition of products (bio-charm gasm water and organics) obtained when Douglas-fir wood was subsequently ...
    • Transformation of bio-oil during pyrolysis and reforming
      Wang, Yi (2012)
      The pyrolysis of biomass is a very effective means of energy densification. With the bio-char returned to the field as a soil conditioner and for carbon bio-sequestration, bio-oil can be used in many ways, including being ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.