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

    Polymerization and cracking during the hydrotreatment of bio-oil and heavy fractions obtained by fractional condensation using Ru/C and NiMo/Al2O3 catalyst

    Access Status
    Fulltext not available
    Authors
    Kadarwati, S.
    Oudenhoven, S.
    Schagen, M.
    Hu, X.
    Garcia-Perez, M.
    Kersten, S.
    Li, Chun-Zhu
    Westerhof, R.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Kadarwati, S. and Oudenhoven, S. and Schagen, M. and Hu, X. and Garcia-Perez, M. and Kersten, S. and Li, C. et al. 2016. Polymerization and cracking during the hydrotreatment of bio-oil and heavy fractions obtained by fractional condensation using Ru/C and NiMo/Al2O3 catalyst. Journal of Analytical and Applied Pyrolysis. 118: pp. 136-143.
    Source Title
    Journal of Analytical and Applied Pyrolysis
    DOI
    10.1016/j.jaap.2016.01.011
    ISSN
    0165-2370
    School
    Fuels and Energy Technology Institute
    URI
    http://hdl.handle.net/20.500.11937/9669
    Collection
    • Curtin Research Publications
    Abstract

    Two-step hydrotreatment experiments were performed using three completely different bio-oil fractions namely: whole bio-oil, heavy bio-oil obtained after fractional condensation of pyrolysis vapours and pyrolytic lignin obtained by cold water precipitation of the bio-oil. The aim is to study the de-oxygenation and in addition SEC and UV-fluorescence analysis was used to identify the importance of cracking, polymerization and hydrogenation reactions of the three different bio-oil feedstocks. In the first step hydrotreatment, Ru/C was used at 250 or 300 °C with reaction time of 2 h. In the second step hydrotreatment, Ni-Mo/Al2O3 catalyst was used at 375 or 400 °C, with reaction time of 2 or 4 h. During stabilization in the first step, pyrolytic lignin was hydrogenated to a large extent accompanied by cracking reactions. In the second step, unsulphided Ni-Mo/Al2O3 catalyst was active enough to effectively crack pyrolytic lignin into smaller molecules. High molecular weight compounds including large aromatic ring structures were formed from the reactive sugar rich fraction in both first step stabilization and second step hydrotreatment. The newly formed polymerization products were difficult to crack even at extended reaction times of 4 h at 400 °C. Importantly, the presence of water (and light oxygenates) could significantly supress the polymerization reactions.

    Related items

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

    • Upgrading of bio-oil into advanced biofuels and chemicals, Part III: Changes in aromatic structure and coke forming propensity during the catalytic hydrotreatment of a fast pyrolysis bio-oil with Pd/C catalyst
      Li, X.; Gunawan, Richard; Wang, Y.; Chaiwat, W.; Hu, Xun; Gholizadeh, M.; Mourant, D.; Bromly, John; Li, Chun-Zhu (2013)
      This study has investigated the hydrotreatment of bio-oil (derived from the fast pyrolysis of mallee woody biomass) in a batch reactor under 10 MPa pressure with Pd/C catalyst at temperatures between 150 °C and 300 °C. ...
    • Recent advances in production and upgrading of bio-oil from biomass: A critical overview
      Baloch, H.; Nizamuddin, S.; Siddiqui, M.; Riaz, S.; Jatoi, A.; Dumbre, D.; Mujawar, Mubarak; Srinivasan, M.; Griffin, G. (2018)
      © 2018 Elsevier Ltd. All rights reserved. Pyrolysis and liquefaction are widely accepted methods used for the synthesis of bio-oil using biomass. The quality and quantity of the bio-oil, produced either from pyrolysis or ...
    • 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.