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

    Direct emulsification of crude glycerol and bio-oil without addition of surfactant via ultrasound and mechanical agitation

    Access Status
    Fulltext not available
    Authors
    Zhang, Mingming
    We, M.
    Wu, Hongwei
    Date
    2018
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zhang, M. and We, M. and Wu, H. 2018. Direct emulsification of crude glycerol and bio-oil without addition of surfactant via ultrasound and mechanical agitation. Fuel. 227: pp. 183-189.
    Source Title
    Fuel
    DOI
    10.1016/j.fuel.2018.04.099
    ISSN
    0016-2361
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/66975
    Collection
    • Curtin Research Publications
    Abstract

    This study investigates the possibility of directly preparing emulsions from crude glycerol and bio-oil by ultrasound and/or mechanical agitation without addition of surfactant. It has been found that the approach is feasible when the loading level of crude glycerol is controlled to ensure soap content being about 1.0% in the emulsion to avoid droplets re-coalescence caused by surfactant insufficiency or overloading. Increasing ultrasound amplitude and agitation time can improve the emulsion stability as a result of moderate temperature raise induced by ultrasound treatment. After ultrasound agitation (40% amplitude, 4 min), the temperature raised to ∼80 °C. The emulsion prepared under such condition has stability (∼9.0 h) similar to the emulsion prepared by mechanical agitation at 80 °C. A maximum stability of ∼15.0 h can be achieved if the emulsions have a suitable soap content (∼1.0%) under a combined emulsification process (ultrasound at 40% amplitude for 4 min followed by mechanical agitation for 2 min). The superior of combination of ultrasound and mechanical agitation can be attributed to both effective droplet breakdown by ultrasound agitation and reduction in droplet re-coalescence chance by followed mechanical stirring. Additionally, the prepared crude glycerol/bio-oil emulsion fuels have similar or even better properties compared to the bio-oil. Accelerated ageing has insignificant influence on emulsion stability if soap content is ∼1.0% in the emulsion, and the fuel properties of the aged samples showed only minor changes (including slight decrease in viscosity and slight increase in water content but little change in acidity).

    Related items

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

    • Engine performance and emissions characteristics of a diesel engine fueled with diesel-biodiesel-bioethanol emulsions
      Tan, Yie Hua ; Abdullah, M.O.; Nolasco-Hipolito, C.; Zauzi, N.S.A.; Abdullah, G.W. (2017)
      © 2016 Elsevier Ltd In this research work, the experimental investigation of the effect of diesel-biodiesel-bioethanol emulsion fuels on combustion, performance and emission of a direct injection (DI) diesel engine are ...
    • Miri light crude water-in-oil emulsions characterization – Rheological behaviour, stability and amount of emulsions formed
      Wong, S.; Dol, S.; Wee, S.; Chua, Han Bing (2018)
      Emulsification, specifically formation of water-in-oil (W/O) emulsions, is a very common occurrence in the oil and gas industries which tend to occur naturally given the conditions of the industries. However, it is an ...
    • Rheological properties and ageing of bioslurry fuels prepared from crude glycerol/methanol/bio-oil blend and biochar for stationary combustion applications
      Gao, W.; Zhang, Mingming; Wu, Hongwei (2017)
      © 2018 Combustion Institute. All Rights Reserved. This study investigates the rheological properties and ageing of bioslurry fuels prepared from crude glycerol/methanol/bio-oil (FCGMB) blend and biochar, benchmarking ...
    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.