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68 巻, 1 号
選択された号の論文の11件中1～11を表示しています
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成田 浩1989 年 68 巻 1 号 p. 1-2
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (303K) -
吉村 宇一郎1989 年 68 巻 1 号 p. 3-16
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーCoal is one of the most important energy alternative to oil. From the point of the medium and long term view, it is essantial to promote the expansion of coal utilization.
NEDO (New Energy and Industrial Technology Development Organizaion) has studied the problems of the expansion of coal utilization and has suggested to promote “The COAL RENAISSANCE CONCEPT”.
This concept consists of five basic ideas;
i) expansion of coal utilization based on the technological innovation
ii) improvement of image of coal (change into clean coal)
iii) arrangement of distribution system and coal manufacturing industry
iv) continuous promotion of R&D for coal utilization technologies抄録全体を表示PDF形式でダウンロード (1798K) -
津 宏治, 大久保 泰邦1989 年 68 巻 1 号 p. 17-26
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーThe magnetic and gravity surveys were being used frequently in the early stage of oil explorations during the late 19th and the early 20th centuries. Following this, the seismic reflection method became a powerful prospecting technique for buried and deep seated oil reservoirs. Recently new data acquisition system for precise data and data processing techniques using computer system permited the advances of geophysical prospectings and minimized the cost of development drilling. An important problem in resources today is utilization of subsurface space such as the stockpile of oil and the disposal of high-level radioactive waste in the geological formation. On the other hand, considerable effort has been expended on the vertical seismic profiling and the cross-hole tomography which are based on downhole measurement techniques, and the detail magnetotelluric survey on a profile line. These techniques are in attempts to obtain more information about subsuraface geophysical structure, and will be applied to the above problems of resources in future.抄録全体を表示PDF形式でダウンロード (2639K) -
神近 牧男1989 年 68 巻 1 号 p. 27-38
発行日: 1989/01/20
公開日: 2011/02/23
ジャーナル フリーThis paper deals with the field of antidesertification and gives (1) an outline of the distribution of arid regions in the world, (2) an analysis of desertification mechanisms and (3) a description of the variations in the meteorological environment which result from desert greening reclamation.
The paper also summarizes the ecological and sociological problems which must be considered to produce enduring effects of greening reclamation, the two most important of which are the arrangement of inhabitable conditions for human beings and the preservation of reclaimed land.抄録全体を表示PDF形式でダウンロード (1536K) -
岡田 治, 一本松 正道, 増田 正孝, 高見 晋1989 年 68 巻 1 号 p. 39-44
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーThe effect of sulfur poisoning, an important factor for methanation, was studied using a Ru/Al2O3 catalyst and the factors which control the life of the catalyst were investigated.
We studied the methanation reaction of COG (Coke Oven Gas), an important reaction from the viewpoint of industrial application. COG methanation has already been put into practical use in the SNG (Substitute Natural Gas) manufacturing process.
As a result, it was found that sulfur atoms adsorb surface atoms of Ru metal particles in the ratio of 1 to 1.
Furthermore, this study suggests that the higher the Ru dispersion of a catalyst, the larger the amout of saturated sulfur adsorption and the longer the life of the catalyst.抄録全体を表示PDF形式でダウンロード (900K) -
C2O3-TiO2共沈酸化物笠岡 成光, 笹岡 英司, 岩崎 秀人1989 年 68 巻 1 号 p. 45-54
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーCatalysts for the low-temperature dry-type simultaneous removal of sulfur oxides (SOx) and nitrogen oxides (NOx) were investigated, and Cr2O3-TiO2 prepared by the coprecipitation method was found as a superior catalyst.
In this process, SO2 was catalytically oxidized to SO3, then deposited onto catalyst surface as ammonium sulfates by the reaction with H2O and NH3, and NOx were reduced to N2 with NH3 over the same catalyst at low temperature (ca. 130°C).
The experiments were carried out using a flow type packed bed reactor under atmospheric pressure at 110-150°C. Inlet gases were SO2 (mainly 250ppm), NO (250ppm), NH3 (500-750ppm), O2 (5%), H2O (10%) and N2 (balance gas).
The main results obtained are as follows:
1) 10-30mol%Cr2O3-90-70mol%TiO2 gave the higer activity than the other composition oxides for the simultaneous removal of SOx, and NOx.
2) The salts deposited on Cr2O3-TiO2 were amorphous form of NH4HSO4 and (NH4) 2SO4.
3) The used catalyst could be regenerated by heating at 500°C in N2 stream, and then treating with O2 (5%)-N2 mixture at 500°C.
4) The active oxygen of Cr2O3-TiO2 gave the high activity for not only the denitrification (NOx removal), but the oxidation of NO to NO2. When the active oxygen was consumed, the addition rate of the oxygen from the gas phase was promoted by the coexistence of SO2.
5) The almost complete removal of SOx, and NOx without the leak of NH3 could be done by controling the quantity of NH3 supplied over Cr2O3-TiO2.抄録全体を表示PDF形式でダウンロード (1198K) -
昇温条件の影響柴田 昌男, 坂木 剛, 安達 芳雄, 三木 敏晴, 有田 静児1989 年 68 巻 1 号 p. 55-62
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーIn order to investigate the initial stage liquefaction of coal in the process of rising temperature, heat-treatment of slurries consisting of wandoan coal and hydrogenated anthracene oil (1: 3 by weight) were carried out under three heating patterns with a pipe reactor which was designed to obtain six samples in the course of heating.
Solvent insoluble matters such as toluene insolubles (TI) and pyridine insolubles (PI), viscosities and relative weight average molecular weight to polystyrene of filtrates, 50% mean particle size of unreacted coal and concentrations of hydrogen donor components in filtrates were affected by heating pattern.
TI and PI began to decrease at about 300°C and 250°C, respectively. Both decreased steeply above 400°C.
Relation between viscosities of heated slurries at room temperature and heating patterns were not observed, but in any case, viscosities of heated slurries increased with an increase in sampling temperature.
50% mean particle size of unreacted coal gradually increased up to about 400°C by swelling and decreased above 400°C by disintegration. The disintegration of unreacted coal steeply increased°Ciscosities of filtrates and weight average molecular weight because of solubilization of coal into the vehicle.
Concentrations of hydrogen donor components such as dihydrophenanthrene, tetrahydrofluoranthene and dihydropyrene in the filtrates decreased with an decrease in TI and PI, that is, those components contributed effectively to coal liquefaction.抄録全体を表示PDF形式でダウンロード (922K) -
瀬間 徹, 佐藤 幹夫1989 年 68 巻 1 号 p. 63-71
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーAs coal derived liquid fuel, EDS coal derived liquid fuel and SRC/oil mixture fuel were evaluated for use as fuels for thermal power plants by using a combustion test furnace (standard fuel feed rate was 50l·h-1) which has combustion characteristics similar to thermal power plant boilers.
The combustion tests was carried out using three kinds of EDS coal derived liquid fuel and two kinds of SRC/oil mixture fuel which were produced from the different coals.
Main results are as follows.
(1) Combustion characteristics and flue gas properties of EDS coal derived liquid fuel were similar to those of A heavy oil. Therefore, it was concluded that EDS coal derived liquid fuel can be applied to existing oil fired boilers.
(2) If preheating temperature and other combustion conditions are optimally selected, SRC/oil mixture can be applied in existing oil fired boilers.抄録全体を表示PDF形式でダウンロード (980K) -
燃料電池 (1) オンサイト用燃料電池金子 彰一1989 年 68 巻 1 号 p. 72-79
発行日: 1989/01/20
公開日: 2010/06/28
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石田 愈1989 年 68 巻 1 号 p. 82-83
発行日: 1989/01/20
公開日: 2010/06/28
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日電東芝情報システム (株) システム技術部1989 年 68 巻 1 号 p. 84
発行日: 1989/01/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (148K)
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