Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
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Volume 40, Issue 8
Displaying 1-16 of 16 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1961 Volume 40 Issue 8 Pages 602
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.602
    JOURNAL FREE ACCESS
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  • Methanol from Coal Mine Gas
    Kiyoshi Hayashi
    1961 Volume 40 Issue 8 Pages 603-609
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.603
    JOURNAL FREE ACCESS
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    From Ôyubari Coal Mine about 90, 000m3 per day methane is drawn out for the safe operation.After extensive investigation on the utilization of this gas, the pro-duction of methanol was found to be the best.
    1) Concentration of methane.
    As the coal mine gas consists of 50-60% methane, 3.5% carbon dioxide and air, methane must be concentrated before use.For this purpose, the gas is compressed up to 4.6kg/cm2, methane is liquefied and separated into two parts, the one containing 90% methane for making synthesis gas, and the other containing 30% methane for fuel gas.Care was taken that no explosion mixture exists in any part of the separation system.
    2) Reforming of methane.
    Methane, mixed with appropriate amount of carbon dioxide deduced from flue gas by absorbing with MEA, is reformed to synthesis gas with steam over nickel catalyst.
    3) For the methanol synthesis, “Fauser Process”is introduced from Italy.The main feature of this process is the control of reaction temperature by cooling with water.Catalyst chamber is separated into four parts between which water coils are set.Water under pressure of 50 kg/cm2 runs through these coils.
    4) Capacity
    50t methanol/day or 16, 500t/year.
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  • Erratum
    1961 Volume 40 Issue 8 Pages 609
    Published: 1961
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.40.8_609
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  • UOP Type Coker
    Teruo Noguchi
    1961 Volume 40 Issue 8 Pages 610-619
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.610
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    Koa Oil Company had already been planning to build a coker.Accordingly, the existing thermal cracker at Marifu Refinery was converted into a 5, 500bbl/day delayed coker of UOP low pressure type and was completed in October of last year.Incombination with the FCC unit, which had been in operation since March of last year, the effective use of Dun i (Central Sumatra) crude with very small sulfur content and much heavy oil and the production of raw petroleum coke for the first time in Japan became possible.
    The text of the article outlines the petroleum coke and coking method, and details of the facilities and operating method with regard to delayed coker is explained .
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  • Studies on the Oxidative Degradation of Coal (VII)
    Oxidation of Coke by boiling with 1N HNO3
    Yoshinobu Takegami, Chikao Yokokawa, Shigeru Kajiyama
    1961 Volume 40 Issue 8 Pages 620-627
    Published: August 20, 1961
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.40.620
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    The cokes, which prepared from Onoura bituminous coal (C 81.5%) and Nakago brown coal (C 72.0%) by heating at temperature range from 400°C, to 1, 000°C, were oxidised by boiling with 1N HNO3.
    By comparing these results with those of 1N HNO3 oxidation of various rank coals, the changes of chemical structure of coal and coke were discussed.
    From the similarity of the behaviour of 400°C cokes and coal, it was concluded that the characteristics in chemical structure of coal remains in 400°C coke and the degraded portion by carbonisation is the same as that by 1N HNO3 oxidation.(It was previously reported by the authors that the structure of these portions are alicyclic.)
    The dissimilarity of the oxidation results of 500°C coke and coal seems to indicate that the above-mentioned portions are degraded by heating up to 500°C, and the aromatic structural part of coal is subjected the carbon accumulating reaction simultaneously.
    The low oxidisabillty of 600°C coke is due to the low reactivity of the carbonaceous material which is produced in the course of carbonisation by the condensation of structural units of coal.
    In the oxidation of cokes prepared at higher temperature than 800°C, higher oxidisabilty of these cokes and the production of humic acids with lower molecular weight were observed, and it was concluded that these phenomena are caused by the growth of condensed aromatic structure.
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  • Studies on the Property of Natural Coke (IIi)
    Properties of Natural Coke in Mine Pit
    Riichi Shioda, Hisanori Nakamura, Eiichi Sato
    1961 Volume 40 Issue 8 Pages 628-643
    Published: August 20, 1961
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.40.628
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    Senseki contains many kinds as follows: -the hard Senseki which con-tacts directly with lava, soft Senseki far from hard one a little and Anthracite.
    As normal samples of Senseki contain all kinds of them, we can not distinct them by analysis.
    Fortunately we obtained the about 30 kinds of Senseki from every places of coal mines, then we can discover many properties of Senseki by analysis of them.
    In addition to it, we imagine the creative temperature of Senseki by many Microscopic photographes of them.
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  • Effects of Heavy Fuel Oil Characteristics on the Combustion of Diesel Engine (III)
    On Stability
    Hiroshi Utsumi
    1961 Volume 40 Issue 8 Pages 644-655
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.644
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    The development of rifinery method and the demande for petroleum prod-ucts have increased sludge content which is represented by asphaltenes.Many problems of diesel engine controlig are occurred, that is, blockade of straiver, stoppage of fuel pump and injection system, and the law quality of fuel oils.The author picked up the problems of injection and combustion apart from mechanical factors.For this purpose various kind of stabilities and its evaluating methods are compared experimentarily with the results of diesel combustion.It is found that the stability should be regarded important.
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 656-658
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.656
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 659-660
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.659
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 661
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.661
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 661a-662
    Published: August 20, 1961
    Released on J-STAGE: May 16, 2013
    DOIhttps://doi.org/10.3775/jie.40.661a
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 662
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.662
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 663
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.663
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 663a-664
    Published: August 20, 1961
    Released on J-STAGE: May 16, 2013
    DOIhttps://doi.org/10.3775/jie.40.663a
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 664
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.664
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1961 Volume 40 Issue 8 Pages 665-669
    Published: August 20, 1961
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.40.665
    JOURNAL FREE ACCESS
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