Journal of the Fuel Society of Japan

[title in Japanese]

[in Japanese]

1954 Volume 33 Issue 10 Pages 505
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.505

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On the New V.K.W.Boiler at the Minato Power Plant of the Kyushu Denryoku Co.

Hiroshi Nishimura

1954 Volume 33 Issue 10 Pages 506-513
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.506

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he author describes on the plan of establishment and a part of results of the trial performance of the V.K.W.boiler which was first established in Japan.Especially, the details of the reconstruction which was done to fit the Japanese coal (Miike coal) are given.But, he says that the details on the results of operation are too early to be published.

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Recent firing apparatus in Europe and America

Tokuzo Tsujimoto

1954 Volume 33 Issue 10 Pages 513-519
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.513

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The author described the present status of the various firing apparatus and heat engineering in Europe and America, which he had inspected last year.In Europe and America, Chain grate stoker, travelling stoker and pulverized coal firing are generally used for good coals, and in each counties, low temperature carbonization of brown coal, low grade coal firing by Martin reverse travelling stoker or Cramer stoker (Germany), spreader stoker and Cyclon firing (America) the efficient utilization of natural gas and geotherm (Italy) and London smog were specially concerned with.
He pointed out the efficient utilization of low grade coal in the foreign countries and emphasised its necessity and the future direction of heat engineering in our country.Moreever, Martin reverse travelling stoker, Cyclon firing, pressure firing etc., in which the author had been interested during his travel were explained in detail.

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The Transportation of Granules and Powders

Ryuichi Aoki

1954 Volume 33 Issue 10 Pages 520-531
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.520

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Handling of bulk materials is an important operation in the chem-ical engineering region.In this report the transportation of powders and granules are mentioned.There are many devices for the transportation, but designs of them are wholly empirical and often we meet unexpected trouble.Theoretical analysis of the powder is very poor, but it is the only way to solve such troubles.
We relate first the fundamental behaviors about the statics and dynamics of pow-der and then outlook the various transporting apparatuses to know the future way of theory.

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The Removal of Sulphur from Coke during Carbonization

Tsunetaro Kato, Keniiro Takeshita

1954 Volume 33 Issue 10 Pages 531-536
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.531

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For the desulphurization of coke during coking, some compounds were added to the coal before coking and the effect of these reagents was examined by determining sulphur content in coke thus made.From the results of crucible test and semi-industrial coking experiments with a horizontal retort, the followings were recognized: -Ammonium chloride has a very poor ability to remove sulphur, although it scarcely influences on the strength and reactivity of coke.Alkali cyanide, if used with alkali carbonate, removes most of organic and inorganic sulphur.On the other hand it lowers, though slightly, the strength of coke and increases its reactivity.Industrial application of these methods seems to be difficult, because of a small effect in the case of ammonium chloride and corrosive action to the oven refractories in the case of alkali cyanide.Mechanism of sulphur removal by these additives was also discussed.

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Softening Heat of Coal from the Point of View of Solvent Extraction

A. Baba, N. Yaki

1954 Volume 33 Issue 10 Pages 537-545
Published: October 30, 1954
Released on J-STAGE: February 23, 2011

DOIhttps://doi.org/10.3775/jie.33.537

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Six samples of Japanese coal were extracted by creosote oil (200-300°cfraction) and the yield of extract (Y%) was determined at the temperature 200-375°C (T).
Assuming that a maximum of dY/dT vs T corresponds to a component of coal and that the energy which is necessary for extraction shall be shared to the energies to divide each component into the-unit substance (Softening heat, QY) and to disperse the units into solvent (QM), QY of each componentwas calculated.Mean QY is in the range of 3.5-36kcal/mol.In the case of low rank and non caking coal, the structure of coal seems to be the non extractable substance forming a rigid skeleton and low QY component is absorbed in the space.High swelling and weakly coking coal consists of the low QY components alone.The QY of strongly coking coal is higher than that of high swelling coal, although it is not so high.Anthracite is composed of high QY and non extractable component.
Molecular weight of extractable component is also calculated from QM.The mean molecular weight of each component is in the range of 101-1012 and the relation to the sorts of coal is almost similar to QM.

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 546
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.546

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 547
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.547

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 549-550
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.549

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 550-551
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.550

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 551
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.551

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 551a-554
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.551a

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 554-555
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.554

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 555-556
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.555

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 556-558
Published: October 30, 1954
Released on J-STAGE: June 28, 2010

DOIhttps://doi.org/10.3775/jie.33.556

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[title in Japanese]

1954 Volume 33 Issue 10 Pages 547a-549
Published: October 30, 1954
Released on J-STAGE: May 16, 2013

DOIhttps://doi.org/10.3775/jie.33.547a

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