巻号一覧
後続誌
70 巻, 6 号
選択された号の論文の14件中1～14を表示しています
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内堀 秀男1991 年 70 巻 6 号 p. 469
発行日: 1991/06/20
公開日: 2010/06/28
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太田 時男1991 年 70 巻 6 号 p. 470-477
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーIt has passed nearly 20 years since an ambitious project of the hydrogen energy systems has been launched in IEA-countries. Some innovative water decomposition technologies have been studied and remarkable results are obtained for SPE-electrolysis, thermochemical and photelectrochemical methods, hydrogen utilization systems in metalhydride system of innovative air conditioning, hydrogen storage, roket fuel system, and fuel cells. However, the feasibility of replacement the petroleum economy system is not matured yet. Unless an offer of adequate cost for the global environmental protection in energy system is made, the hydrogen energy system could not be alternative to the present system. In this paper, the recent R & D results of representative technologies of water-splitting and hydrogen utilization systems are reviewed.抄録全体を表示PDF形式でダウンロード (988K) -
吉田 邦夫1991 年 70 巻 6 号 p. 478-486
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーThe concept of a hydrogen-based economy has been receiving much attention over recent years. It usually means an energy-delivery system in which hydrogen is used to transport energy from a nuclear or solar source to a variety of users. Today, hydrogen is made mainly from natural gas. After diminish-ing its availability nuclear power is considered to be the leading intermediate-term source of energy for hydrogen production by thermochemical methods.
The most important motive force toward considering hydrogen is that hydrogen does away with depending on fossil-fuel reserves. The greenhouse effect is rapidly emerging as a public policy issue. Many options, therefore, center on slowing the buidup of heat-trapping gases. This is another important motive force toward developing hydrogen, because hydrogen is a completely C-free fuel.
In these views above mentioned, this article is to present and review the results so far obrained in the study of thermochemical production methods through two cycles, UT-3 and IS cycles.抄録全体を表示PDF形式でダウンロード (1319K) -
竹中 啓恭1991 年 70 巻 6 号 p. 487-496
発行日: 1991/06/20
公開日: 2011/02/23
ジャーナル フリーThe importance of hydrogen as a fuel will steadily increase in future, mainly due to environmental necessities. Water electrolysis is the only proven technology for hydrogen production from nonfossil fuel primary energy sources. R& D on water electrolysis have been done to improve cell performance in efficiency and operating current density, since the energy crisis of 1973. Significant improvements have been made possible and further improvements are anticipated.
This paper summarizes the design features of the following three major advanced electrolyzers the advanced alkaline water electrolyzer, the solid polymer electrolyte water electrolyzer and the high temperature water vapor electrolyzer.抄録全体を表示PDF形式でダウンロード (1312K) -
秋葉 悦男1991 年 70 巻 6 号 p. 497-502
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーHydrogen is the most promising media for energy transportation and storage, because it does not produce CO2, when it burns and it can be transmitted for a long distance and stored for a long time.
Hydrogen is transmitted in four forms ; high pressure gas, liquid hydrogen, metal hydrides and hydrogen containing chemical compounds. Among them, metal hydrides and chemical substrates seem to be plausible for an energy carrier because of their high energy density and easiness in handling.
Recently, the feasibility of large scale hydrogen transmission is discussed because the importance of transportation of renewable and fossil energy by the clean media is recognized. To realize such hydrogen transporting systems, elemental techhologies must be developed and the concept of the whole system should be established.抄録全体を表示PDF形式でダウンロード (945K) -
水素自動車、水素タービンについて濱 純1991 年 70 巻 6 号 p. 503-512
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーHydrogen has been recently attracted much attention again as a clean and reriewable energy under the rapidly progressing an environmental destruc-tion which is caused by global warming, acid rain and so on. International Project between European Communities and Canada has been started, which is comprehen-sive project including R&D of hydrogen production, storage, transportation, and utilization.The feasible study for clean energy transportation from foreign country has been also started in Japan.
This paper presents current state of the research and technology for hydrogen use as fuel, particularly for hydrogen-powered vehicle and the power generation system operated by hydrogen-air and hydrogen-oxygen combustion, and also refers to the key technologies for these utilization.抄録全体を表示PDF形式でダウンロード (1110K) -
平戸 瑞穂1991 年 70 巻 6 号 p. 513-524
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーThis is the report of the investigation for the Japanese patents on the coal gasification and coal gasification combined cycle power generation.抄録全体を表示PDF形式でダウンロード (1368K) -
コークス基質強度の推定荒牧 寿弘, 美浦 義明, 有馬 孝, 坂輪 光弘1991 年 70 巻 6 号 p. 525-532
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーIn the previous report, the possibility of a new model describing the conditions of carbonized contact layer of two kinds of coal particles was proposed using the caking indices by Gieselar plastometer.
In this report, further study has led to a mathematical model to estimate the structural strength of coke across the oven width based on the new model taking into account the coking conditions. Considering the heating rate of the plastic zone of the coal within an oven chamber and the porosity distribution of lump coke, it has proved that the structural strength of the coke estimated by the model is fairly coincide to the measured values.
The features of the model are as follows;
1) The structural strength of coke can be derived from the Merrick's theory, supposing that structural strength of coke depending on the bond strength between two different coal particles and total bond strength is proportional to the blending ratio of each coal.
2) As the bond strength is related to the caking indices by Gieselar plastometer and the indices are related to the heating rate, the structural strength of coke across the oven width can be estimated through a function including the indices such as MF (Maximum fluidity), ST (Solidification temperature) and ΔST (Difference of ST between two kinds of coal).抄録全体を表示PDF形式でダウンロード (793K) -
山本 佳孝, 佐藤 芳樹, 蛯名 武雄, 横山 千昭, 高橋 信次, 西口 信彦, 田辺 晴正1991 年 70 巻 6 号 p. 533-538
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーHigh pressure crystallization has been applied to the separation of indole from the indole-isoquinoline system. Indole with 98.1% purity was obtained at 50°C under 92MPa with the depressurization sweating technique. Equilibrium property of the present system under high pressure was also discussed. Formation of addition compound of indole with isoquinoline was observed in this system. Under higher pressure, the formation range of the addition compound was reduced and the collection range of pure indole or isoquinoline was enlarged very much.抄録全体を表示PDF形式でダウンロード (737K) -
テトラリンによる水素移行脱硫の有効性櫛山 暁, 上桝 勇, 肥沼 豊, 相沢 玲司, 小林 悟, 大内 日出夫1991 年 70 巻 6 号 p. 539-548
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーThe effectiveness of hydrogen transfer desulfurization (HTD) in heavy oil hydrotreatment was investigated using tetralin as a hydrogen donor solvent. Reactions were carried out at reaction temperatures 410 and 450& using a batch reactor with varying the initial hydrogen pressure.Three different catalysts, namely a highly active dispersed Mo-Co-P-S (I), another kind of dispersed Mo-Co-P-S which was severely poisoned by excess phosphorus (II) and CoMo/Al2O3, were utilized. Parallel experiments using decalin, a poor hydrogen donor, were also performed to compare with the results using tetralin.
The results with the catalyst (I) revealed that at low hydrogen pressure the HTD did function effectively but at a higher pressure, i.e. at an initial hydrogen charge of 80kg/cm2 or higher, no advantageous effect of tetralin addition was observed. The effectiveness of HTD seemed to depend upon such catalyst functions as dissociative adsorption of molecular hydrogen and dehydrogenation of solvents.
Both of the devanadization and the coke-forming reactions were largely affected by hydrogen pressure, and at 80kg/cm2 of initial charge the results of reactions with tetralin were almost the same as those with decalin, irrespective of the kind of catalyst used. This indicates the reaction sites for those reactions are different from the sites for desulfurization.抄録全体を表示PDF形式でダウンロード (1174K) -
各種合成ナフサ中の窒素および酸素化合物の定量吉田 忠, Pierre D. CHANTAL, Henry SAWATZKY1991 年 70 巻 6 号 p. 549-553
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーTrace amounts of nitrogen and oxygen compounds in various synthetic naphthas have been determined by combined use of column adsorption and gas chromatographic techniques. These compounds were quantitatively separated from the naphtha. The naphthas, which were produced by the hydrocracking of vacuum bottoms, contained 0.15-2.01wt% of nitrogen compounds and 0.5wt% of oxygen compounds. In contrast, the naphtha, which was produced by coking process, contained less nitrogen compounds and more oxygen compounds. The difference in yield was due to the different feedstocks rather than processes. The main types of nitrogen compounds were pyridine and pyrrole homologs in most naphthas and those of oxygen compounds were phenols.抄録全体を表示PDF形式でダウンロード (523K) -
ロボットにおけるインテリジェントセンサー下条 誠1991 年 70 巻 6 号 p. 554-559
発行日: 1991/06/20
公開日: 2010/06/28
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土肥 義治1991 年 70 巻 6 号 p. 563
発行日: 1991/06/20
公開日: 2010/06/28
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三井造船株式会社1991 年 70 巻 6 号 p. 564
発行日: 1991/06/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (428K)
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