Journal of the Fuel Society of Japan

[title in Japanese]

[in Japanese]

1960 Volume 39 Issue 1 Pages 1
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.1

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Short Review on Rocket Propellant

Kiroku Yamazaki

1960 Volume 39 Issue 1 Pages 2-11
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.2

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Since the chemical energy is used solelyf or the practicalr ocket propulsionat the present time, t his review is confinedt o the chemical prepellant, t hough thereappeared so many ideas and preliminaryr esearcheso n the nucleara nd solare nergy propulsionespeciallfyo r futures pace vehicle.
The chemical compounds containingt he element of H, Li, Be, and B are suitablea s fuelcomponent from the standpointo f the speciflicm pulse, b ecause it is proportionatlo squ areroot of the ratioo f temperaturet o mean molecular weight of thew orking gas. Fluo rine ismore powerful than oxygen in oxidizinga bilityb.u t has defecto f largerm olecular weight.
Due to the extremelys mall densitya nd low temperature, l iquidh ydrogen off ered manyproblems to be solved in spiteo f itsh ign specifiicm pulse. By the reason of various limitationsb, o ron hydride and its alkyl derivativea re promissing as the component for highperformance propellant.
The fundamental propertieso f varioust ype propellantst, h e limit of molecular weightand temperatureo f burnt gas, common propertiesr equiredf orl iquida nd solid prope llants, and performance of representativper opellantse itheri n lipuido r solids tatea re surveyedbriefly

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Modernization of Power of the National Railways

Yonehiko Iskihara

1960 Volume 39 Issue 1 Pages 12-19
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.12

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Is is the general trend in the world that the source of power for railways -shifts from the steam engine to the electric power and the diesel engine. In our country, too, the Power Modernization Committee of the National Railways recently announced the plan of complete electrification of main lines and adoption of diesel engines in other lines in fifteen yerrs. Aecording to this plan the fuel consumption will be remarkably reduced . If the price of coal would be reduced, the steam and diesel power might be used together . Electric cars would be superior to electric locomotives in such points as the effects to rails and the convinience of operations, and will be used widely. Although someone think that the railways will be overcomed by automobils, in such country with dense population as takan the railways will be an important means of transportation continually in future, because they have more transportation capacity with less spaces and less power comsumiptions.

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Various Methods of Mass Coal Storage

Kazumi Tanaka

1960 Volume 39 Issue 1 Pages 20-27
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.20

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The cootrol of a supply of coals, such as the storage of surplus coals and the release of it by a lack of coals, is necessary to both coal producers and consumers for maintaining the normal market of coals.
When a unit of 500, 000 tons coal fines of the moisture from 6 to 15 percent and of the size under 25-mm is stored away nearby a place of coal consumption in about two years, it is considered that (1) the compact storage in the field, (2) the storage in water, (3) the underground storage and (4) the storage in a structure which is suitable to the coal storage method.
The compact storage in the field has a danger of weathering and spontaneous combustion of coals. From the above reason the enough caution is necessary to execute this method. The storage in water has not a danger of weathering and spontaneous combustion, but the transportation and the dewatering of it may be difficult in case of containing pulveriged coals. In the underground storage it is apt to make bridgings in a coal pocket and the find of the suitable place for it is very difficult. Also in the storage in a structure it is apt to make bridgings in a coal pocket as well as the underground storage and has a problem of the side pressure of a coal pocket, especially in case of earthquake.
From a commercial standpoint the compact storage in the field is cheapest. The storage in water, the underground storage and the storage in a structure are in order of cost. Because the seal by nitrogen gas is necessary to carry out two methods of the storage in an nderground and in a structure, these methods may become cheaper when the oxygen n which is a by-product in a process of nitrogen production is sold in markets.

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Recent Trends of the Manufacture of Blast-Furnace Coke

The Coke Research Committee of the Fuel Society of

1960 Volume 39 Issue 1 Pages 28-32
Published: January 20, 1960
Released on J-STAGE: October 21, 2011

DOIhttps://doi.org/10.3775/jie.39.28

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In Japan, as the reserve of strongly coking coal is very poor, efforts have vigorously been made for the manufacture of blast furnace coke from the indigenous weakly coking coal. Coke manufactured by blending with semi-coke has showed good results in the blast furnace operation during the long period, meanwhile the‘Bojuntan process’, ‘Briquet carbonization process’, and‘Ferrocoke process’ have been successful in obtaining the coke of high strength. However, the indigenous raw coal does not pay, and what is worth, its reserves seemed to be severely limited in Japan, and so stress has been laid on the elevation of coke quality, especially on the reduction of fluctuation. Improvement of blending equipment and method, progress in the statistical quality control, and establishment of the rapid analysis have brought the satisfactory result. In this paper, based on the operation result in June, 1958, the recent trends in the technology of the said processes of coke manufacture and the improvement of the coke quality are described together with the properties of coals charged, blending propprtions, coking conditions, and coke quality. Furthermore, the situations of the coke industey such as the demand and supply of coke, the installment of the coke oven, etc. are also introduced.

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Aqueous Methanol Extraction of Phenols (I)

Fundamental consideration for Aqueous Methanol Extractionl F of Phenols

Kozo Higuchi, Tetsuo Osa, Takao Takeuchi, Junichi Kanetaka

1960 Volume 39 Issue 1 Pages 33-41
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.33

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This study relates to the fundamental data of equilibrium and selectivity on phenolic compounds which are extracted by aqueous methanol from coal-tar or coal hydrogenation oil.The selectivities of pure phenols are also determined. Our intention is to extract the tar acids such as phenol and cresols which are available as chemicals.
The main results are:
1.Analyzing selectivity with x-y chart and solubility with its curves for phenolic and neutral oils, more information was obtained than by the analysis of triangle coordinate denoted in the published references.
2. The optimum condition of the aqueous methanol solvent is 60-70wt%, while most literatures pointed out the value of 70-80wt%. Methanol concentration ought to be changed by the contents or composition of phenolic compounds in the initial oil.
3. Affinity of phenols to aqueous methanol is detected to depend on phenolic-OH group in its structure, and extraction order consists with the polarity of phenols: it takes phenol, p-cresol, m-cresol, o-cresol and xylenols in order.

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 53-54
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.53

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 54
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.54

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 55-57
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.55

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 57
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.57

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 57a
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.57a

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 57b-62
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.57b

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 62-67
Published: January 20, 1960
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.39.62

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 54a
Published: January 20, 1960
Released on J-STAGE: May 16, 2013

DOIhttps://doi.org/10.3775/jie.39.54a

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[title in Japanese]

1960 Volume 39 Issue 1 Pages 54b-55
Published: January 20, 1960
Released on J-STAGE: May 16, 2013

DOIhttps://doi.org/10.3775/jie.39.54b

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