巻号一覧
後続誌
59 巻, 4 号
選択された号の論文の7件中1～7を表示しています
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中西 成美1980 年 59 巻 4 号 p. 227-228
発行日: 1980/04/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (413K) -
神谷 佳男1980 年 59 巻 4 号 p. 229-240
発行日: 1980/04/20
公開日: 2011/10/21
ジャーナル フリーCoal liquef action can be classif ied into two important steps;the f irst step is thermal decomposition of linking parts of coal structure units and subsequent stabil-ization of reactive f ragments by hydrogen donor solvents, and the second step is hydro-cracking of so called asphaltene structures.Theref ore, the yield and properties of coal oils depend largely on the reaction conditions, catalyst and f eed coal.The product distribution, analytical results and individual components of coal oils by several developing processes, that is, SRC-I, SRC-II, EDS, H-Coal and Synthoil, are briefly reviewed to clarif y the feature of reaction products.Naphtha f raction can be used as the high octane gasoline as well as the petrochemical f eedstocks after hydrotreatment and catalytic ref orming.Middle and heavy distillate f ractions are difficult to convert to ketosine or diesel f uel oil because of higher aromaticity and heteroatom contents, but can be used as f uel oil.抄録全体を表示PDF形式でダウンロード (1685K) -
岡 宏, 井上 貞信, 佐々木 満雄1980 年 59 巻 4 号 p. 241-249
発行日: 1980/04/20
公開日: 2010/06/28
ジャーナル フリーFor the explanation of the mechanism of peat-ammonia reaction, the reaction of peat humic acid with gaseous ammonia has been studied in comparison with the result from model substance for peat humic acid through the infrared spectrophotometric and chemical analyses of reaction products. The peat humic acids were prepared from Ishikarikanazawa reed peat and Toyotomi moss peat by extraction with 1 % sodium hydro-xide aqueous solution. The δ-lactone of o-carboxyphenylglyceric acid was used as the model substance of peat humic acid.
The reaction of humic acid with ammonia was carried out at 20°C f or 2hr. It was concluded that lactam configurations were f ormed from δ-lactone structure in peat humic acid by the reaction with ammonia, and carboxy groups in the humic acid were converted to the primary amide and a part of phenolic hydroxy groups to amine.Other nitrogen containing groups such as ammonium, nitrile, amidine, imino groups and iso-indol configuration was not f ound in the reaction products.抄録全体を表示PDF形式でダウンロード (1224K) -
横山 慎一, 奥谷 猛, 長谷川 義久, 吉田 諒一, 石井 忠雄1980 年 59 巻 4 号 p. 250-260
発行日: 1980/04/20
公開日: 2011/10/21
ジャーナル フリーMinerals in coal have been studied in some detail, but very little work has been done on the behavior of minerals in the course of heat treatment in air, that is, when coal is burned at high temperatures.In this study, the samples of mineral matter of f our Japanese coals were prepared by a low-temperature ashing technique by which the mineral matter from coal can be obtained in a relatively unaltered state.The low-temperature ash samples were then heated progressively from 400-130°C at 100°C intervals. Min-eral phases at each temperature interval were determined by X-ray dif fraction analysis.抄録全体を表示PDF形式でダウンロード (1392K) -
阿部 良之助1980 年 59 巻 4 号 p. 261-269
発行日: 1980/04/20
公開日: 2010/06/28
ジャーナル フリーWhen coal is crushed in water and treated with 10 % CaCl2· 2H20 solution at room temperature, coal-humic acid calcium salt and HC1 are assumed to be produced in the reaction in the reaction vessel.After two minutes, an unsaturated fuel oil, equal to one-eighth of the coal in weight, is added to the reaction vessel and stirred vigo-rously for f our minutes.
In the vessel, the unsaturated fuel oil saturated with HCl is assumed to react with the coal-humic acid calcium salt.
After these treatments, the contents of the vessel are filtered using filter paper, and washed with pure water until the waste water becomes neutral.
These three chain-reactions in the vessel are not mere suppositions but are exactual reactions which can be analysed by infrared spectra.
On washing this chemical compound of coal and mineral oil with water and mixing it at 80°C in a ball mill with heavy oil, a homogeneous fuel oil is produced.This artifical fuel oil containing 30% coal, is very stable and no depositing of compounds is observed even when left standing for 63 days at 45°C .抄録全体を表示PDF形式でダウンロード (1039K) -
燃焼および炉内脱硫の条件の検討森田 義郎, 池田 浩, 近藤 喜則, 菊地 英一1980 年 59 巻 4 号 p. 270-276
発行日: 1980/04/20
公開日: 2010/06/28
ジャーナル フリーFluidized bed combustion has been investigated as an environmentally acceptable way f or utilization of residual oils with high sulfur and nitrogen contents.Dol-omite and limestone were used as bed materials which were able to absorb oxides of sulfur.Dolomite had higher ability than limestone to promote combustion and to remove SOx in combustion flue gases according to the following reaction;CaOd-SO2+1/2O2=CaSO4·Optimum temperature for desulfurization was determined to be 850°C for both dolomite and limestone.Combustion efficiency decreased with increasing degree of heaviness of oil.抄録全体を表示PDF形式でダウンロード (834K) -
中西 成美1980 年 59 巻 4 号 p. 277-289
発行日: 1980/04/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (1972K)
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