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 1
Displaying 1-15 of 15 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1958 Volume 37 Issue 1 Pages 1
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.1
    JOURNAL FREE ACCESS
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  • Gasifications of Petroleum Oils for Town Gas
    Kenichi Yamamoto, Yoshiro Morita
    1958 Volume 37 Issue 1 Pages 2-8
    Published: January 20, 1958
    Released on J-STAGE: October 21, 2011
    DOIhttps://doi.org/10.3775/jie.37.2
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    The author classifies the methods of oil gasifications for town gas on the view point oftleir chemical reactions, and compared them with coal gasifications and carbonizations.The results of investigations on oil gasifications and water-gas reaction and partial oxidation of L.P.G.and natural gas in the author's laboratory are summarised.For town gas making, catalytic cracking processes are superior to thermal crackings.But it is good plan to make abundant olefin gases in thermal cracking gas into petrochemicals and to utilize the residual gas for towns.
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  • Presumption on Pre-heating Temperature of Fuel Oils
    Tsuyoshi Ogawa
    1958 Volume 37 Issue 1 Pages 9-14
    Published: January 20, 1958
    Released on J-STAGE: February 09, 2012
    DOIhttps://doi.org/10.3775/jie.37.9
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    Lately the consumption of residual fuel oils tend to increase.according to the development of petroleum refining processes and the popularization of diesel engines and gas turbines.At the use of low grade fuel oils, pre-heating temperature of them just come to the front.Distillate fuel oils and residual fuel oils may be used for same purpose, decreasing their viscbsities suitable for atomization by prcheating to 30-40°C and 70-80°C respectively.Determination of their preheating temperature only by grades causes many troubles, because of the defferences of their raw materials and refining methods.
    The author drew a few diagrams checked with a lot of experimental data.Using these diagrams, it is possible to presume the preheating temperature simply with the knowledges on the specific gravity (15/4°C) and Redwood No.1 viscosity at 50°C.
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  • Decomposition of Cycloliexane
    [in Japanese], [in Japanese]
    1958 Volume 37 Issue 1 Pages 15-19
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.15
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    In the thermal decompositions of cyclohexane and its homologues, complicated mixtures of lower saturated and unsaturated hydrocarbons have been reported as the reaction products, in which ethylene and butadiene are relatively abuandant comparing with other types of hydrocarbon.Therefore the reaction has been thought as one of the potential processes for the butadiene production.
    We are in the opinion that the nonselective decomposition is effected by severe conditions such as high reaction temperature.Therefore in this experiment, cyclohexane is decomposed under the condition as to prevent the secondary reactions as well as several competitive reactions using a few selected types of heterogeneous catalysts which are likely to produce butadiene.
    It is found that with metal or oxide hydrogenating catalysts, such as Ru or Cr2O3, the decomposition is not occured.With CaO, however, the decomposition is almost selective to the production of ethylene and butadiene with small amount of propylene and others comparing with the case of thermal processes.
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  • Preparation of Olefins by the Partial Oxidation of Propane under Reduced Pressure
    Shigeru Tsutsumi, Naoya Kominami, Hideki Hori
    1958 Volume 37 Issue 1 Pages 20-25
    Published: January 20, 1958
    Released on J-STAGE: October 21, 2011
    DOIhttps://doi.org/10.3775/jie.37.20
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    mixture of propane and oxygen was passed through quarz tube hav-ing an internal diameter of 23mm.The tube was packed with fused alumina having a diameter of about 4mm.The reaction was carried out at 600-950°C and the pressure of100mmHg.To clarify the effect of temperature on the yields of olefins, a mixture of propane and oxygen in a mol ratio of 1: 0.129 was reacted at a time of contact of 0.32-0.83 sec and 0.55-1.42 sec. For the formation of propylene, 800-850°C was found to be proper, and the yields of total olefins were also maximum at these temperature ranges.
    The percentage of conversion of oxygen was nearly 100 at the higher temperature-than 820°C when the time of contact was 0.3 sec and longer.It was also 100 at the higher temperature than 750°C when the time of contact was0.71 and longer.
    The optimum time of contact for the formation of propylene decreased with the rise in the temperature at a range of 0.25-3.92 sec, whereas the formation of ethylene increased with the increase of time of contact at a range up to 0.4 sec.
    The optimum ratio of oxygen to propane was found to be 0.11-0.17.It was interesting-to note that the rate of reaction of hydrogen with oxygen increased with the rise in the temperature, whereas at lower temperature the formation of CO and CO2 was-predominant.At an oxygen mol percentage of 11.2-11.6, the yields of propylene and ethylene were 9.9-12.6 and 48.9-44.6% respectively and the yields of total olefins reached up to 58.5%.
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  • Petrological Studies of Miike Coal(III, IV)
    Tadashi Nakagome, Susumu Yoshida, Tamotsu Matsuura, Hidehiko Sugimura
    1958 Volume 37 Issue 1 Pages 26-35
    Published: January 20, 1958
    Released on J-STAGE: October 21, 2011
    DOIhttps://doi.org/10.3775/jie.37.26
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    We have discussed in this report the relation between the petrographical components of Miike Coal and the friability of the cokes made from them.We have succeeded in showing it quantitatively in a triangular diagram, which has been made to fit Miike Coal, using different indexes from those used by Mackowsky in her diagram.For the purpose of showing the relation between the petrographical components of the Tertiary coals and the friability of the cokes made from them, we believe our diagrammatic system has more universality than hers, since, in the case of the Tertiary coal, one can not ignore the existence of exinite-durite which exerts the worst effect upon the friability of cokes.
    In the latter half of the report we have discussed the possibility of separating petrographical coal components from each other, especially that of separating vitrite from exinite-durate.Though we failed to realize the anticipated result through the flotation method using the aqueous solution of amyl alcohol, we have succeeded in the separation of vitrite from exinite-durate through the centrifugal method using as its medium the aqueous solution of CaCl2 whose special gravity is made 1.24.It has been proved by experiment as well as in theory that the coal washer, which avails itself of the difference in sedimentation rate of each coal particle in water, does not make such separation possible.
    At the same time we realized the fact that the separation of FeSx in coal from CaCO3 is possible through the flotation method.
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  • Oxidation of Lignite to Chemicals by Nitric Acid(II)
    The separation and secondary oxidation of the products
    Takuzo Arai, Michio Tsuyuguchi, Tetsuo Mori, Kazuo Asakawa
    1958 Volume 37 Issue 1 Pages 36-42
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.36
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    Oxidation products could be separated to several characteristic groups combining fractional precipitation by alkaline earths metals and solvent extractions, and the H/C of the groups was decreased by mild oxidation with KMnO4.However, there are no good results in yields for obtaining chemicals, and more decomposition of the residue or the large molecular substances which are water soluble will be necessary.Besides, a small amount of 4-nitro, 3-oxy, 1-benzoic acid was derived from the nitrationof the distilled fraction.
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 43
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.43
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 44-45
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.44
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 45-46
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.45
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 46
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.46
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 47-48
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.47
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 48-51
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.48
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 51-54
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.51
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1958 Volume 37 Issue 1 Pages 54
    Published: January 20, 1958
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.37.54
    JOURNAL FREE ACCESS
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