Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
Search
Advanced search
OR
Browse
Search
Volume 29, Issue 11-12
Displaying 1-14 of 14 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • [title in Japanese]
    [in Japanese]
    1950 Volume 29 Issue 11-12 Pages 269
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.269
    JOURNAL FREE ACCESS
    Download PDF (285K)
  • The Physico-Chemical Natures of Coal Constituents(I)
    Haruhiko Tanno
    1950 Volume 29 Issue 11-12 Pages 270-281
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.270
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    As a research tool of the constitution of coal the separations of Vitrit and Durit from the coal seams of Kayanuma and Ishikari coal fields were carried out by the microscopical examination, and their physical and chemical natures were studied.The relationships between these properties and the degrees of coalification as well as its mechanism were discussed.
    In the beginning part of the paper, the author discussed in detail the fine struct-ures of Vitrit and Dtirit. Next, the author searched for the relation between the degrees of coalification of Vitrit and Durit in the coal seams which were seemed to be of the same degree of coalification and the equal content of carbon, oxygen and volatile matter, and found that there existed the transition point of coalifica-tion.This vas due to the existence of Lxinit which was deficient in carbon content but rich in volatile matter.With the progress of coalification, the content of moisture decreased, while the volatile matter and the brightness increased, the pe centages of hydrogen, nitrogen and sulphur showing no-remarkable diferences.
    Thus, the author concluded that the carbon content in Vitrit might be used as a standard of the degree of coalification.
    View full abstract
    Download PDF (4558K)
  • Refining of Low Grade Ube Coal(On the Preparation Test)
    Ryonosuke Abe, [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    1950 Volume 29 Issue 11-12 Pages 282-288
    Published: December 25, 1950
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.29.282
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The experiment of preparation of fine coal powder, which was suited.to preparation of briquette, from low grade Ube coal was carried out from the in-dustrial view points.The 10th grade Ube powder coal, having a calorific value of 3, 600 kcal/kg and containing 40% ash, was used in this experiment.In the first step, 20-30 mm size powder coal was crushed by double roll crusher and the in-creasing crushing index was calculated.From the calculated index, it was considered that the coaly matter of this sample was crushed more easily than the inorganic matter on the whole, and that the three minimum points of ash content existed.at about 4, 16 and 150 mesh.This phenomenon was also recognized in 10 20 mm and under 10 mm size powders of this coal.In the next step, the fine powder coal under about 10 mesh prepared by screening and crushing was washed by table method, and the refined coal containing 20% ash and having a calorific value of 5, 300 kcal/kg was obtained, its yield corresponding to 46% of the original coal.
    View full abstract
    Download PDF (1480K)
  • On the Polymerization of Olefines Produced fromSome Fatty Acids (II)
    The Results of Semi-Industrial Experiments
    Toshiichi Tokunaga
    1950 Volume 29 Issue 11-12 Pages 289-292
    Published: December 25, 1950
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.29.289
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The author described he results of semi-industrial experiments-which.were carried out by the following units:decomposition plant consisted of 12 series, every set of which was able to produce about 250 kg.of refined olefines per month, .and polymerization plant's capacity was about 200 kg.of polymerized oil per month.The decomposition agent was the mixture of 100% Kaolin and 25% calcium oxide.The general results of semi-industrial experiments corresponded to that of the funda-mental.
    View full abstract
    Download PDF (1151K)
  • Beehive Coke
    Sotaro Nakagawa
    1950 Volume 29 Issue 11-12 Pages 293-301
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.293
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    fter describing briefly the history of beehive coke oven industry in Japan, the author explained in detail the equipment, operation and coke produced in the works which had been built at Osaka Coke Co.in 1935 and then showed the proximate analyses of cokes and raw coals, treated during a long period from 1919 to 1942.
    Throughout the paper, the merits of beehive oven such as simple construction and easy operation were emphasized, and especially it was stressed upon that the beehive coke was far superior to the byproduct coke for foundry use
    View full abstract
    Download PDF (2060K)
  • Synopses of Lectures at the 12 th and 13 th Special Meeting on Coke of the Society
    Foundry Coke
    1950 Volume 29 Issue 11-12 Pages 302-306
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.302
    JOURNAL FREE ACCESS
    Download PDF (1474K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 307-312
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.307
    JOURNAL FREE ACCESS
    Download PDF (1207K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 314
    Published: December 25, 1950
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.29.314
    JOURNAL FREE ACCESS
    Download PDF (198K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 314a-315
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.314a
    JOURNAL FREE ACCESS
    Download PDF (460K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 315
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.315
    JOURNAL FREE ACCESS
    Download PDF (269K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 316
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.316
    JOURNAL FREE ACCESS
    Download PDF (196K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 316a
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.316a
    JOURNAL FREE ACCESS
    Download PDF (196K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 317-318
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.317
    JOURNAL FREE ACCESS
    Download PDF (245K)
  • [title in Japanese]
    1950 Volume 29 Issue 11-12 Pages 319-320
    Published: December 25, 1950
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.29.319
    JOURNAL FREE ACCESS
    Download PDF (383K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top