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    Synthesis of geopolymer from rice husk ash for biodiesel production of Calophyllum inophyllum seed oil

    Access Status
    Fulltext not available
    Authors
    Saputra, E.
    Nugraha, M.
    Helwani, Z.
    Olivia, M.
    Wang, Shaobin
    Date
    2018
    Type
    Conference Paper
    
    Metadata
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    Citation
    Saputra, E. and Nugraha, M. and Helwani, Z. and Olivia, M. and Wang, S. 2018. Synthesis of geopolymer from rice husk ash for biodiesel production of Calophyllum inophyllum seed oil, The 2nd International Conference on Oleo and Petrochemical Engineering: Institute of Physics Publishing Ltd..
    Source Title
    IOP Conference Series: Materials Science and Engineering
    Source Conference
    The 2nd International Conference on Oleo and Petrochemical Engineering
    DOI
    10.1088/1757-899X/345/1/012019
    ISSN
    1757-8981
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/69853
    Collection
    • Curtin Research Publications
    Abstract

    In this work, geopolymer was prepared from rice husk ash (RHA) made into sodium silicate then synthesized by reacting metakaolin, NaOH, and water. The catalyst was characterized using Scanning Electron Microscopy (SEM), Energy-dispersive X-Ray analysis (EDX), Brunaeur Emmet Teller (BET), and basic strength. Then, the catalyst used for transesterification of Calophyllum inophyllum seed oil in order to produce biodiesel. The variation of process variables conducted to assess the effect on the yield of biodiesel. The highest yield obtained 87.68% biodiesel with alkyl ester content 99.29%, density 866 kg/m3, viscosity 4.13 mm2/s, the acid number of 0.42 mg-KOH/g biodiesel and the flash point 140 °C. Generally, variations of %w/w catalyst provides a dominant influence on the yield response of biodiesel. The physicochemical properties of the produced biodiesel comply with ASTM standard specifications.

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