Journal of the Japan Institute of Energy
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ONLINE ISSN: 1882-6121
PRINT ISSN: 0916-8753

Journal of the Japan Institute of Energy Vol. 84 (2005), No. 11

  • The Effect of Hydrophilicity/hydrophobicity Ratio of Coal Surface on the Column Flotation Process

    pp. 917-922

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    DOI:10.3775/jie.84.917

    Continuous column flotation is one of an economical coal cleaning processes. In this study, we exam-ined the effect of hydrophilicity and hydrophobicitiy of coal surface on the continuous column flotation processes. We found that Wallarah coal was most suitable coal for the coal cleaning by the column flotation. From a static separation of film flotation, we found that the floatability of coal particle strongly depended on the hydrophilicity and hydrophobicity of coal surface. On the other hand, the trend of demineralization and the ratio of carbonaceous recovery could be predicted by the observation of methylene-blue adsorption test.
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    1. RDF Carbonization System and the Utilization of the Carbonized Product Journal of the Japan Institute of Energy Vol.84(2005), No.11
    2. Biomass Ethanol Production from Sugarcane for Energy Generation to Support Sugar Production Journal of the Japan Institute of Energy Vol.84(2005), No.11
    3. Hydrogen Production from Sho-chu Post-Distrillation Slurry by Newly Isolated Strain, Clostridium sp.JPCC H-3 Journal of the Japan Institute of Energy Vol.84(2005), No.12
  • Biomass Ethanol Production from Sugarcane for Energy Generation to Support Sugar Production

    pp. 923-928

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    DOI:10.3775/jie.84.923

    Competition for raw materials between sugar and ethanol usually occurs when biomass ethanol is produced from sugarcane. In order to overcome this critical problem, numerous studies have investigated the production of ethanol from two by-products of sugarcane: molasses and bagasse. However, there have been no previous attempts to improve the relevant properties of sugarcane, such as its growth rate, sugar content or fiber content.
    The objective of the current work was to develop a novel system for high-yield biomass ethanol production to support existing methods of sugar production. A system for the simultaneous production of sugar and biomass ethanol was designed by employing selected sugarcane strains that were developed specifically for this process, including 95GA-24, 95GA-27 and NiTn18.
    We ran productivity simulations using data from the novel sugarcane strains and compared the per-formance of the new process with that of conventional methods. Our results confirmed that sugar produc-tion could be maintained at present levels while three-times more biomass ethanol could be generated com-pared with the conventional processes. In addition, we demonstrated that a carbon-neutral process could be achieved using the new system.
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    Readers Who Read This Article Also Read

    1. RDF Carbonization System and the Utilization of the Carbonized Product Journal of the Japan Institute of Energy Vol.84(2005), No.11
    2. The Effect of Hydrophilicity/hydrophobicity Ratio of Coal Surface on the Column Flotation Process Journal of the Japan Institute of Energy Vol.84(2005), No.11
    3. Hydrogen Production from Sho-chu Post-Distrillation Slurry by Newly Isolated Strain, Clostridium sp.JPCC H-3 Journal of the Japan Institute of Energy Vol.84(2005), No.12
  • RDF Carbonization System and the Utilization of the Carbonized Product

    pp. 929-934

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    DOI:10.3775/jie.84.929

    This paper introduces swinging-type waste carbonizing technology, and an energy saving process developed by combining a carbonizing system with refuse derived fuel (RDF) production from municipal waste. Applications of carbonized products are also reported. It is concluded that the carbonized products produced from RDF by this carbonizing system have uniform properties. Formaldehyde and other harmful organic substances are decomposed by the high temperature carbonizing treatment, and safe, high quality carbonized products are obtained. The JFE group is actively developing new applications of the carbonized products in various fields such as soil conditioners, adsorbents, coke substitute in iron making, and insulat-ing material.
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    Readers Who Read This Article Also Read

    1. Biomass Ethanol Production from Sugarcane for Energy Generation to Support Sugar Production Journal of the Japan Institute of Energy Vol.84(2005), No.11
    2. The Effect of Hydrophilicity/hydrophobicity Ratio of Coal Surface on the Column Flotation Process Journal of the Japan Institute of Energy Vol.84(2005), No.11
    3. Hydrogen Production from Sho-chu Post-Distrillation Slurry by Newly Isolated Strain, Clostridium sp.JPCC H-3 Journal of the Japan Institute of Energy Vol.84(2005), No.12

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