巻号一覧
後続誌
53 巻, 4 号
選択された号の論文の10件中1～10を表示しています
- |<
- <
- 1
- >
- >|
-
松沢 明1974 年 53 巻 4 号 p. 221-222
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (221K) -
岩本 多実1974 年 53 巻 4 号 p. 223-232
発行日: 1974/04/20
公開日: 2011/02/23
ジャーナル フリーGreat interest has been aroused recently in the HTGR from the view point of alleviation of environmental problems as well as effective use of nuclear energy in Japan. This article outlines the coated particle fuel for the HTGR, and reviews the current researches on the fuel aiming at an imp improvement in the fuel performance and economy.抄録全体を表示PDF形式でダウンロード (1332K) -
長谷 章1974 年 53 巻 4 号 p. 233-238
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーIt seems that the synthesis of natural gas into synthetic petroleum is not taken into consideration yet though the conversion of natural gas into liquefied natural gas or methanol has been done as the means of its transportation. The author has examined the synthetic petroleum from natural gas.
The present status of South African Coal, Oil and Gas Corporation (SASOL), only one operator of Fischer-Tropsch synthesis in the world, is reported here after the explanation of Fischer-Tropsch synthesis.
Then it is proposed that the synthetic petroleum will be supplied to the consuming country after the Fischer-Tropsch synthesis with the reforming of natural gas into CO and H2, and it is indicated that the synthetic petroleum with the technique of SASOL can be competitive with LNG, methanol and crude oil in economic view point.抄録全体を表示PDF形式でダウンロード (848K) -
1974 年 53 巻 4 号 p. 238
発行日: 1974年
公開日: 2011/02/23
ジャーナル フリーPDF形式でダウンロード (55K) -
森田 義郎1974 年 53 巻 4 号 p. 239-247
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーBasic reactions of coal gasification are assorted into thermal cracking, hydrocracking, water gas reaction, producer gas reaction and combustion. Gasification processes are also classified into three of hydrocracking, perfect gasification contact. Some comments are made on these reactions and processes. Especially, technical problem, characteristics and chemical reactions for each process are elucidated.抄録全体を表示PDF形式でダウンロード (1318K) -
大内 公耳1974 年 53 巻 4 号 p. 248-256
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーThe energy problem in France and West Germany and reseasch development on Coal and Carbon were reviewed.抄録全体を表示PDF形式でダウンロード (1365K) -
ピッチ中に含まれるベンゼン不溶・キノリン可溶成分の炭化性小川 真資, 工藤 恵子, 持田 勲, 竹下 健次郎, 高橋 良平, 末次 良雄, 古海 十二1974 年 53 巻 4 号 p. 257-262
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーInfluences Coustitutions of the starting pitches upon the structure and physical properties of the cokes obtained by carbonization at the temperatures of 400°-2, 500°C under a nitrogen flow were studied by means of polarized-light microscopy, measurement of coefficient of thermal expansion (C.T.E.) and x-ray diffraction to reveal factors which affect the formation of needle-like cokes.
Coatar pitches and pitches obtained while thermal cracking of crude oil (Kureha pitches) were used to be fractionated with benzene and quinoline into three fractions of BS (benzene soluble), BI·QS (benzene insoluble-quinoline soluble), and QI (quinoline insoluble), which may have increased degrees of condensation in this order.
BS from both pitches gave needle, like cokes via similar steps as reported previo-usly, whereas BI·QS which did not melt at carbonization temperatures up to 2.500°C similarly to QI formed non-graphitizing carbon of low crystallinity (Lc =50Å calcined at 2, 500°C). It is noted that addition of BS as low as 5 wt % into BI·QS converted the mixture pitches fusible at the early stage of carbonization and therefore gave needle-like cokes of high crystallinity (Lc=500Å calcined at 2, 500°) and orientation through steps of spherical body formation and their calescence. As far as the carbonization rate, BI-QS introduced into BS lowered the temperature of sphere bodys' appearance and accelerated their growth and coalescence in proportion with its amount. In addition, high orientation of cokes obtained from the mixture pitches of BS and BI·QS revealed by the microscopic observation was also ascertained by low CTE values comparable with or even better than those of cokes from BS.抄録全体を表示PDF形式でダウンロード (1772K) -
森田 幹雄, 広沢 邦男1974 年 53 巻 4 号 p. 263-272
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーThe process of extractive chemical disintegration of coal under hydrogen pressures was investigated in the influence of reaction temperatures (350-450°C), reaction times (0-12hr.), reaction pressures (5-200kg/cm2), difference of hydrogen or nitrogen atmosphere and of various coals on the variation of extraction yield, the H/C atomic ratio of extraction residue and it's surface area.
For the explanation of extraction process of coal, it should be taken into consideration that the reactivity of dissolved coal and of undissolved coal showed a remarkable change with the progress of the reaction because of disintegration and condensation reactions.
A definite correlation between extraction yield and the H/C ratio of extraction residue was found in a certain reaction temperature range. Therefore, it was considered that extraction residue had a similar molecular structure at the same extraction yield.
Furetheremore, the surface area of extraction residue changed with the progress of the reaction.
From these results, a model of a series of consequtive reactions was proposed.
But strictly speaking, in order to express the phenomena of extrative chemical disintegration of coal exactly, it should be thought that the reaction rate equation was constructed every reaction temperature.抄録全体を表示PDF形式でダウンロード (1210K) -
永田 勝也, 本間 裕士, 広田 幹雄, 松原 邦博1974 年 53 巻 4 号 p. 273-283
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーIn this paper, NOx emission from the 5-26t/h boilers which are used for the air conditioning or steam source in factory and influence of burning condition on NOx formation are researched. The main results are summarized as follows.
1) NOx emission from such boilers is 1-5kg/107kcal.
2) Boiler capacity doecs not influenced on NOx emission.
3) NOx emission highly depends on flame temperature. As temperature in higher, NOx emission more increases.
4) Heat release rate in combustion chamber has same relation.
5) NOx-Excess air factor relation is divided into three patterns. The pattern that the tested boiler indicated, is determined by the range of excess air factor and fuel-air mixing in combustion chamber.
6) The type of fuel has an effect on NOx emission. NOx emission increases in the order of town gas, kerosene and heary fuel oil. On the boilers firing high N content fuel oil, NOx emission increases. Fraction of N content converted to NOx is 39%.抄録全体を表示PDF形式でダウンロード (1472K) -
1974 年 53 巻 4 号 p. 290-293
発行日: 1974/04/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (524K)
- |<
- <
- 1
- >
- >|