Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
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Volume 56, Issue 12
Displaying 1-6 of 6 articles from this issue
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1977 Volume 56 Issue 12 Pages 943-944
    Published: December 20, 1977
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.56.12_943
    JOURNAL FREE ACCESS
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  • Development of Study of Electrically Augmented Flames
    Ken Kishimoto
    1977 Volume 56 Issue 12 Pages 945-959
    Published: December 20, 1977
    Released on J-STAGE: October 21, 2011
    DOIhttps://doi.org/10.3775/jie.56.12_945
    JOURNAL FREE ACCESS
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    As electric power is superimposed on general hydrocarbon flames, high temperature gas flow can be obtained. The flame is called “Electrically Augmented Flame”, and it is considered that it has many practicable fields as it is economically good. In this paper, author makes some efforts on surveying the studies concerning this flame and introduces illustrations of these studies adding our investigations.
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  • Thermal Cracking of Residual Oils
    Mamoru Yamane, Toshio Tokairin, Hiromi Ozaki
    1977 Volume 56 Issue 12 Pages 961-980
    Published: December 20, 1977
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.56.12_961
    JOURNAL FREE ACCESS
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    As environmental regulations to prevent sulfur oxide emissions will become stricter in the future, it will be necessary to effectively thermal-crack residual oils of high sulfur contents by-produced in refineries.
    On the other hand, it is conceivable that the steel industry in Japan will, in the future, suffer from shortage of coking coals having high fluidity for producing blast furnace cokes.
    Therefore, it is considered very urgent and significant, from the viewpoints of petroleum refining as well as steel manufacturing, to produce binder pitches or syn-thetic coals from residual oils.
    For the purpose as described above, many companies have been making studies on production of high aromatic binder pitches or synthetic coals by thermal cracking of residual oil.
    In the present paper, the results of those studies are described and some pro-cesses of thermal cracking which are now on the way of commercialization are reviewed.
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  • Activated Carbon from Palm Kernel Shel
    Hidehiko Hagii
    1977 Volume 56 Issue 12 Pages 981-986
    Published: December 20, 1977
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.56.12_981
    JOURNAL FREE ACCESS
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    Carbonized plam kernel shell (a) was steam-treated to prepare activated carbon and activation characteristics in preparation as well as adsorption charateristics of the resulting activated carbon were compared with those of a commercial coconut shell carbon (b).
    Reaction rate of (a) with steam is smaller than that observed with (b).
    The adsorption behavior and pore size distribution suggest that activated carbon from (a) is suitable for smaller molecular absorbates.
    On the adsorption of styrene monomer in the fixed beds, activated carbon from (a) was superior to a commercial activated carbon from (b) with regard to break-through time and retentiveness of adsorption.
    The experimental results indicate that activated carbon from (a) has ability of deodorization as Well as decolorization.
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  • A Structural Analysis of Crude Oil Fractions
    Makoto Nagai, Kenichi Iwamoto, Masayuki Nakano
    1977 Volume 56 Issue 12 Pages 987-995
    Published: December 20, 1977
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.56.12_987
    JOURNAL FREE ACCESS
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    24 fractions were obtained from 3 kinds of (Sumatra Light, Duri and Tia Juana) crude oils by distillation below 250°C under N2 atmosphere. Their NMR and IR spectra were obtained, and the relations with the structural parameters by n-d-M method (aromatic (CA), paraffinic (Cp) and naphthenic (CN) carbon %) were investigated.
    The relations obtained are as follows:
    Cp%=2.23 AR (I) +111.08
    CA%=2.59 AR (IV) +3.78
    CN%=100-(CP%+CA%)
    , where AR (I) and AR (IV) are area %'s of chemical shift ranges (0-1.08) δ and (5-10) δ of NMR spectra, respectively.
    Employing these relations, structural changes with extractions by several reagents were investigated.
    A signif cant amount of paraffinic hydrocarbons were found to be considerably removed by urea and thiourea adduction.
    These results were also confirmed by investigating the weight change in hydroca-bons with urea extraction.
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  • [title in Japanese]
    [in Japanese]
    1977 Volume 56 Issue 12 Pages 996-1005
    Published: December 20, 1977
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.56.12_996
    JOURNAL FREE ACCESS
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