Journal of the Japan Institute of Energy
Online ISSN : 1882-6121
Print ISSN : 0916-8753
ISSN-L : 0916-8753
Volume 76 , Issue 10
Showing 1-2 articles out of 2 articles from the selected issue
  • Katsumi HIRANO, Masato KOUZU, Masatoshi KOBAYASHI
    1997 Volume 76 Issue 10 Pages 971-979
    Published: October 20, 1997
    Released: June 28, 2010
    JOURNALS FREE ACCESS
    The influence of heavy distillate in the solvent for coal liquefaction was investigated with a 5L batch-autoclave.
    The following conclusions are obtained.
    (1) Heavy distillate in the solvent consumes much hydrogen and prevents hydrogen translation on asphaltene hydrogenating reaction. Consequently, it reduces oil yield in the coal liquefaction system.
    (2) Donatable hydrogen in the heavy solvent equally promotes coal liquefaction reaction to that in the recycle solvent. Severe hydrotreatment of the heavy solvent increases its hydrogen donatability and oil yield in the coal liquefaction system.
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  • Naoki HACHIYA, Teruyuki KITA, Hidehiro KAMIYA, Masayuki HORIO
    1997 Volume 76 Issue 10 Pages 980-987
    Published: October 20, 1997
    Released: June 28, 2010
    JOURNALS FREE ACCESS
    Volatile and Char combustion characteristics of refused derived fuel (RDF) in fluidized bed were discussed. The influence of the bed temperature and inlet O2 concentration on the time for a volatile combustion of RDF were quantitatively analyzed by shrinking core pseudo-steadily heat transfer controlled model. This model is close to the original data of the time for volatile combustion of RDF. Shrinking process of unreacted core in RDF during volatile combustion was directly observed to examine its validity for this model. The time for char combustion of RDF in fluidized bed decreased with increasing bed temperature and inlet O2 concentration, and was explained by the assumption of the gas film diffusion control model.
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