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Volume 53, Issue 5
Displaying 1-9 of 9 articles from this issue
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[in Japanese]1974 Volume 53 Issue 5 Pages 299-300
Published: May 20, 1974
Released on J-STAGE: June 28, 2010
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Tsutomu Inoue1974 Volume 53 Issue 5 Pages 301-305
Published: May 20, 1974
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe oil crisis gave much impact to national economic activities and people living. This paper is a summery report at the leature meeting held on 24 January 1974.
The lecturer, Mr. T. Inoue, illustrated Japanese structure on energy, and then, stated background of oil crisis, effects of price increases and production cutback, measures to lessen the impact, and long term policies on energy supply and demand.View full abstractDownload PDF (785K) -
Shigeru Tsutsumi1974 Volume 53 Issue 5 Pages 306-314
Published: May 20, 1974
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDue to the recent petroleum crisis, the recycling of industrial wastes, such as plastics, rubber tire and asphalt seem to be strictly necessary, Based on the fundamental researches carried out in the Osaka University, five tons per day plant for the recycling of waste plastics is now being operated in Kusatsu, sponsored by Sanyo Electric Co., Carbon dioxide and water, which are the biggest industrial wastes, are connected by me and Gaucher with the origin of petroleum.
Domestic refuses are closed up as the new energy resources and should be used for the generation of steam, which is avaiable, after superheated up to 500-600°C, for the decomposition of waste plastics and rubber tire.
Petroleum crisis suggested us that the petroleum resources are not unlimited and the uses of petroleum for car and electric power generation must be controlled to some extent and the combined use of petroleum with coal seems to be strictly necessary. With respect to the hydrogen fuel which is the most promising clean energy, the most important problem is how to produce hydrogen in the cheapest way. In the case where the hydrogen is produced by the electolysis of steam, the production cost is reported to be 200 kWh per one pound of hydrogen. It seems to be better to decompose water by the high temperature from solar energy. The decomposition of carbon dioxide to form CO and O is also should be done as the promising hydrogen resource.View full abstractDownload PDF (1400K) -
Makoto Inoue, Hirokazu Yoshinaga, Keiho Hino1974 Volume 53 Issue 5 Pages 315-324
Published: May 20, 1974
Released on J-STAGE: February 23, 2011
JOURNAL FREE ACCESSThis process invented in Yawata Technical Reserch Center of Nippon Steel Corporation can be easily apply to the existing coke plant by the addition of Coal briquetting equipments.
This process effects the excellent improvement in coking properties of charged Coal.
This report explains about the development of this process, that is, briquette mixing ratio, homogeneous mixing method of Coal and briquette, selection of the briquette machine and the layout of these equipments, and the actual effects to coal blending ratio on the operation results for two years.
According to this process, when 30% of the briquette are mixed to the normal charging coal, coke strength Index (DIN15050 Index) rises 2 to 4%. If coke strength should be keeped to the same level, about 10% of the heavy caking coal could be exchange for non caking coal in normal charging coal.View full abstractDownload PDF (1111K) -
Yoshiro Morita1974 Volume 53 Issue 5 Pages 325-332
Published: May 20, 1974
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThis article has been written as the memory of author's winning of the Prize of Fuel Society of Japan. The content is the outline of author's works for thiry years, and classified into four subjects-those are solid acid catalysts and their catalytic functions, gasification of petroleum, reactions of hydrocarbons on groupe VIII transition metals, and catalytic oxidative dehydrogenation of olefin hydrocarbons.View full abstractDownload PDF (1152K) -
A Special Slurry Preparation MethodYoji Kitaoka, Mikio Hirotu, Yusai Yamahata1974 Volume 53 Issue 5 Pages 333-339
Published: May 20, 1974
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSA new technique of burning industrial solid wastes has lately been developed in our laboratory. Floor firing furnaces or rotary kilns are usually used to incinerate solid wastes, but there is a difficulty to control the combustion mainly due to the direct feeding of solids and this problem is not yet completely solved . On the other hand, liquid wastes can be burnt more easily and completely by means of pumps and burners.
An investigation has been made to convert solid wastes to slurry by mixing with some liquids, such as oil and water. Some of these slurries prepared were found to have been dealt with like a homogeneous liquid, that is to say, ordinary qumps and burners con be used with little modification.
In this paper, the treatment of paint wastes is described in details . The mixture of three components, an approximately same quantity of paint, waste oil and water, has produced a good quality slurry with respect to stability, fluidity and calorific value. Based on this experimental result, we have constructed a pilot plant for slurrificatian of solid wastes. Hereby we could keep on running the incineration test of slurry prepared without mechanical trouble and get a good result of combustion performance as we have anticipated.View full abstractDownload PDF (820K) -
1974 Volume 53 Issue 5 Pages 339
Published: 1974
Released on J-STAGE: February 23, 2011
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Eiji Munekata, Kunio Akiba1974 Volume 53 Issue 5 Pages 340-349
Published: May 20, 1974
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSProposition concerning desulfurization of mineral oil was published by this journal in 1971, and preliminary observations were made using autoclaves.
Autoclave test: 1970 (Fig. 1)
Double autoclave test: 1973 (Fig. 2)
Very rough scope of solubility equilibrium was derived from data shown in Table 2, and approximate value of partition relation was assumed, Sulfur compound in oil/Sulfur compound in water=100/5 at 300°C for gas oil of 0.98% S, sp.gr. 0.83. Applying this numerical data, to achieve 80% of desulfurization, 16 volume of water is necessary for 1 volume of gas oil in counter flow extraction system and on the contrary 80 volume of water in parallel flow extraction.
Extraction test (Fig. 9) was carried out from 1971 through 1972 and 1973, and experimental data are shown in Table 4 and 5. In Table 5, data of 320°C extraction and 90% desulfurization are informed. An extraction pilot plant was operated from 1972 through 1973. To realize a smooth operation, a long period was needed for adjustment, and some available data (Table 6) were obtained. Unfortunately, a grave disaster broke out October 1973 in the same area where the pilot plant was located. No damage was found in the pilot plant but the experimental operation was forced to be suspended under unfavorable circumstances. At the present moment, the experimental data are too insufficient to conclude the pilot plant test and to design the commercial super-heated-water extraction plant. But, this report is made to inform present status of super-heated-water extraction experiment. Judging from data concerning the repeated treatments (Table 4) and the concentration of extract (Table 6), prospects of improvement by combination of recovering and concentrating processes to the extration column system are very bright. The experiments up to the present are concerning mostly low specific gravity oil, for example gas oil, for the sake of easy extraction operation, but in future the experiments covering oils of higher specific gravity, for example crude oil, should be executed by adjusting specific gravities of the aqueous solution or mixture of oils.View full abstractDownload PDF (1312K) -
1974 Volume 53 Issue 5 Pages 356-360
Published: May 20, 1974
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDownload PDF (687K)
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