Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
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Volume 42, Issue 12
Displaying 1-15 of 15 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1963 Volume 42 Issue 12 Pages 781
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_781
    JOURNAL FREE ACCESS
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  • Automatic Control of a Boiler
    Dynamic Characteristics of a Boiler
    Hajime Takenouchi
    1963 Volume 42 Issue 12 Pages 782-787
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_782
    JOURNAL FREE ACCESS
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    It is necessary to know static and dynamic characteristics of a boiler for its automatic control.A theoretical formula indicating dynamic characteristics (steam pressure, water level of a drum and vapor temperature) has been introduced.There is a mutual interference which cannot be disregarded among the abovementioned factors and furnace pressure and air-fuel ratio.Time ligx causd by pulverizer is increased the variations of steam pressure and air-fuel raito in combustion of pulverized coal while it is not found in combustion of fuel oil.The theory of automatic coutrol of a drum-type boiler has already been established, but the problems involved in automati ccontrol of an once-through boiler and in automatic start and stop remain to be solved in future.
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  • Smelting Agent for Natural Gas and LPG
    Yuji Suzuki
    1963 Volume 42 Issue 12 Pages 788-794
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_788
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    This paper outlines the theory and related problems on the manuf-acture of smelting agent for natural gas and LPG.
    Among the necessary requisites to satisfy the smelting agent, some testing results are given on corrosiveness and toxicity.The author also illustrates by example the method of adding the agent and its apparatus.
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  • Formation of Oil Soluble Petroleum Sulfonic Acid by Treatment of Mineral Oil with Fuming Sulfuric Acid
    Futoru Yoshimura, Shinji Mitsui
    1963 Volume 42 Issue 12 Pages 795-806
    Published: December 20, 1963
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.42.12_795
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    The sulfonation of a pretreated fraction of spindle oil by 20% SO3-fuming sulfuric acid has been studied, and the effect of the reaction variables on the yield of mahogany acids has been investigated, in addition, their structure has been discussed.It has been found that with the more fuming sulfuric acid, at the higher temperature, and for the longer reaction time the yield of mahogany acid decreases, and with the higher velocity of stirring, the reaction rate increases.
    In our experiments the most favourable condition of sulfonation of mineral oil may be as follows: quantity of fuming sulfuric acid is 20-30% (by volume) per oil, tempera-ture is at 30°Cand time is for 15minutes.However, the most important factor deter-mining the yield of mahogany acid is indeed the constituent of oil rather than reaction conditions.
    From the ultraviolet and infrared absorption spectrum analyses, it is deduced that mahogany acid may be hydroxy aromatic monosulfonic acid with long paraffinic chain, of which hydroxy and sulfonic group are probably attached to aromatic ring. Mahogany acid may be produced by dehydrogenation of naphthene ring with following sulfonation.
    The unreacted fraction contains some isomerized or intramolecular cyclized oil which are produced by the action of fuming sulfuric acid.
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  • Studies on Formaldehyde Formation by the Catalytic Oxidation of Methane(IV)
    The Gas Phase Catalytic Decompostion of Forma ldehyde in the Presence of Nitric Oxide
    Eiji Otsuka, Hiroo Wataanbe
    1963 Volume 42 Issue 12 Pages 807-812
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_807
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    The experiments were carried out on the homogeneous gas phase catalytic decomposition of formaldehyde in the presence of nitric oxide catalyst in order to compare it with the formation of formaldehyde from methane under the same condition.
    We have found that the decomposition reaction of formaldehyde in the presence of nitric oxide on nitrogen stream is a second-order reaction refered to the formaldehyde concentration and its activation energy is calculated as 21.6kcal/mol and the reaction velocity is very slower than the decomposition one in an oxidizing atmosphere which is discussed below.
    The decomposition reaction of formaldehyde in the presence of nitric oxide and oxygen on nitrogen stream is according to our study the chain reaction with some induction period and the period are so short abvoe 500°C that the reaction can be appr-oximately formulated as secondorder reaction which comprises the product of first-order term of formaldehyde and oxygen concentration respectively and its activation energy is 44.0kcal/mol.
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 813
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_813
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 813a-814
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_813a
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 814
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_814
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 814a
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_814a
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 814b-815
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_814b
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 815-816
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_815
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 816-817
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_816
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 817
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_817
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 818-825
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_818
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1963 Volume 42 Issue 12 Pages 826-830
    Published: December 20, 1963
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.42.12_826
    JOURNAL FREE ACCESS
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