Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
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Volume 37, Issue 6
Displaying 1-13 of 13 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1958 Volume 37 Issue 6 Pages 345
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.345
    JOURNAL FREE ACCESS
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  • Inspection on Coal Chemical Industries in Europe and United States
    Gen Takeya
    1958 Volume 37 Issue 6 Pages 346-350
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.346
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    The author made a tour of inspection on coal chemical industries in Europe and United States in last summer. He describes his impression on fuel research laboratories and domestic fuel industry in England, coal mining industry and coal chemical industries in West Germany, and storage of brown coal in North Dakota and shale in Colorado in United States.
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  • Petrographical Study of Japanese Coals lay the Microscopic Method with CH2I2 as Immersion Fluid
    Erich Stach, Ry-Ohei Takahashi
    1958 Volume 37 Issue 6 Pages 351-360
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.351
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    Cedar oil or glycerine has hitherto been used as the immersion fluid forthe microscopic examination of coal components by the oil immersion method. The reporters, however, have obtained the better results using more highly refractive fluid CH2I2 instead. This immersion fluid is quite easy to use and does not stain the sample.
    When this fluid is employed, the brightness of vitrinite changes itself in a wide range in accordance with the extent of its coalification, so that it is possible even to analyse the mixture ratio of mixed raw coals quantitatively.
    Moreover this new method makes it possible for us to observe minutely and distinctly the microscopic composition of Japanese tertiary coal, which has hitherto been next to impossible.Such observation has given a positive proof to the existing inference that the destruction of plant structures in it was more excessive during the period of peat formation than European paleozoic coal.
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  • Mild Oxidation of Miike Coal by Air (1)
    On the change of industrial qualities of perplastic coal in its oxidation process.
    Tadashi Nakagome, Susumu Yoshida, Tamotsu Matsuura, Hidehiko Sugimura
    1958 Volume 37 Issue 6 Pages 361-367
    Published: June 20, 1958
    Released on J-STAGE: October 21, 2011
    DOIhttps://doi.org/10.3775/jie.37.361
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    [in Japanese]
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  • Studies on the Volatile Matter Determination by the Nitrogen Tube Method (1)
    Jiro Nitadori, Yutaka Koenuma
    1958 Volume 37 Issue 6 Pages 368-374
    Published: June 20, 1958
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.37.368
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    In determining the volatile matter of solid fuels, the decrepitation of fuel particles is the most troublesome problem.
    To overcome it and to standardize the method, the authors examined the nitrogen tube method specified in B.S. 1016-1942.
    At first they tested the precision of the n. t. method and compared it with that by JIS method (a rapid heating method at the temperature 950°C, 7min, using platinum crusible).
    The standard deviation of both methods are almost same values of about 0.22, while a significant deviation was found between each mean values. The mean of the n. t. method is about 4.3 per cent lower.
    As the results of the check determinations the authors found that,
    (1) Volatile matter by n. t. furnace increases linearly with the rise of the temperature at which the preheating is begun, if the heating rate in the preheating period is constant and the heating time at the highest temperature is same.
    (2) Volatile matter by the n. t. furnace, if the furnace is used as in the case of the rapid heating method without preheating, agrees with that by JIS method.
    It seems that the n t. method accompanied with preheating process is a different testing method from that which is usually called the crusible method, at least in determining the volatile matter of lignitic coals.
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  • Manufacture of Silicated Calcareous Manure From Lower Class Coal
    Ryonosuke Abe, Shigekazu Sakamoto, Sohei Obata
    1958 Volume 37 Issue 6 Pages 375-380
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.375
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    Thinking of the hidden quantity of coal in our country, the utilization of the lower class coal is the most importance.
    Because there are about 30, 000, 000 tons of the lower class coal as byproduct against 40, 000, 000 tons of refined coal a year.
    Small part of lower class coal is used by the special selection, but the great part of its prime cost is occupied by the minning and treating cost.
    Hitherto, to utilize lower class coal, the studies have been aimed at it organic components.
    In this studies the authors payed their attention to its inorganic substance (ash).
    For this reason they tried to make higher class silicated calcareous manure and to gasify coals completely.
    Lower class coal of Ube, Joban was used as sample.
    They experimented how to get the SiO2-CaO compound which had a large quantity of soluble silica to 2% citric acid and N/2 hydrochloric acid, how SiO2 and CaO are combined and etc,
    Consequently, they got the following most suitable condition, CaO/SiO2 was 1.2, the treated temperature was 1, 200-4, 250°C, and deduced that the SiO2-CaO compound would be Ca3Si2O7.
    By a small scale pilot plant they got the slag of SiO2-CaO compound, which had no carbon, as by product of perfect gasification.
    About the composition of produced gas, they could not know exactly, but could deduce to be able to control the composition of gas by controling the suppling of O2 and steam, and circulation of gas.
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  • [title in Japanese]
    1958 Volume 37 Issue 6 Pages 381-387
    Published: June 20, 1958
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.37.381
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  • [title in Japanese]
    1958 Volume 37 Issue 6 Pages 388
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.388
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  • [title in Japanese]
    1958 Volume 37 Issue 6 Pages 388a-389
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.388a
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  • [title in Japanese]
    1958 Volume 37 Issue 6 Pages 389-390
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.389
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  • [title in Japanese]
    1958 Volume 37 Issue 6 Pages 390
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.390
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  • [title in Japanese]
    1958 Volume 37 Issue 6 Pages 390a-392
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.390a
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  • [title in Japanese]
    1958 Volume 37 Issue 6 Pages 392-395
    Published: June 20, 1959
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.392
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