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

    Bioslurry as a Fuel. 6. Leaching Characteristics of Alkali and Alkaline Earth Metallic Species from Biochar by Bio-oil Model Compounds

    Access Status
    Open access via publisher
    Authors
    Zhang, Mingming
    Wu, Hongwei
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zhang, M. and Wu, H. 2015. Bioslurry as a Fuel. 6. Leaching Characteristics of Alkali and Alkaline Earth Metallic Species from Biochar by Bio-oil Model Compounds. Energy & Fuels. 29 (4) : pp. 2535-2541.
    Source Title
    Energy & Fuels
    DOI
    10.1021/acs.energyfuels.5b00274
    ISSN
    0887-0624
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/3405
    Collection
    • Curtin Research Publications
    Abstract

    In a bioslurry fuel system, inherent alkali and alkaline earth metallic (AAEM) species can be leached from biochar into the bio-oil phase because of the interaction between biochar and bio-oil [as reported in part 5 (10.1021/ef401888j) of this series]. This paper further investigates the leaching characteristic of these inorganic species from biochar by bio-oil model compounds and the bio-oil water-soluble fraction. The results show that leaching of AAEM species from biochar by bio-oil is mostly attributed to the water-soluble fraction of bio-oil, especially the organic acids and water in bio-oil. The leaching capability of other individual organic compounds (such as methanol, acetone, and guaiacol) in bio-oil appears to be limited because of poor polarity or low dielectric constant. However, in the presence of these organic compounds, the capability of acids and water in leaching the inherent AAEM species from biochar can be significantly influenced. For instance, leaching of AAEM species by water can be hindered in the presence of organic compounds with lower polarity or dielectric constant because of the decrease of salt solubility. However, the presence of phenolic compounds may enhance the leaching of the AAEM species (especially Ca and Mg), likely because of the ability to penetrate into the biochar structure and, thus, increase the accessibility of AAEM species by water or acids.

    Related items

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

    • Tuning Biochar Properties via Partial Gasification: Facilitating Inorganic Nutrients Recycling and Altering Organic Matter Leaching
      Liaw, Sui Boon; Wu, Hongwei (2015)
      This study reports a systematic study on the potential of employing partial gasification at low conversions for tuning biochar for better properties and facilitating the recycling of inorganic nutrient species. The raw ...
    • Organic compounds leached from fast pyrolysis mallee leaf and bark biochars
      Lievens, Caroline; Mourant, Daniel; Gunawan, Richard; Hu, Xun; Wang, Yi (2015)
      Characterization of organic compounds leached from biochars is essential in assessing the possible toxicity of the biochar to the soils’ biota. In this study the nature of the leached organic compounds from Mallee biochars, ...
    • 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 ...
    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.