Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
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Volume 52, Issue 4
Displaying 1-9 of 9 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1973 Volume 52 Issue 4 Pages 241
    Published: April 20, 1973
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.52.241
    JOURNAL FREE ACCESS
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  • ERE Flexicoking process
    Hideaki Maruyama
    1973 Volume 52 Issue 4 Pages 242-248
    Published: April 20, 1973
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.52.242
    JOURNAL FREE ACCESS
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    Flexicoking is a residuum conversion process which integrates coke gasification, with conventional fluid coking. Coke Gasification is one of the oldest commercial chemical operations; fluid coking is an established refinery process with a total installed capacity of about 150 MB/SD. Flexicoking provides a refiner with increased flexibility and the capability of producing high yields of clean, light petroleum products from relatively poor quality crudes, while complying with strict air and water pollution regulations. A Flexicoker can convert about 98% of a typical vacuum residuum into liquid and gaseous products. About 95% of the total sulfur in the residuum can be recovered from the fuel product by commercially available processes. Most of the combined nitrogen in the resid is converted either to elemental nitrogen or to other forms which can readily be controlled to acceptable levels by conventional treating processes. About of the metals in the feed are concentrated in a small solids purge from the system.
    The paper reviews pertinent background information in support of this advanced coking process. The results of some of the engineering and laboratory studies, which were part of the development of Flexicoking, are summarized. And finally, examples of how this process can be used in specific refinery situations are presented.
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  • Ube Heavy Oil Gasification and Desulfurization Process
    Hisashi Kohno, Takazumi Niwa
    1973 Volume 52 Issue 4 Pages 249-254
    Published: April 20, 1973
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.52.249
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    Though the direct desulfurization processes have already been commercialized for the removal of sulfur in the heavy oil, the desulfurization degree is not satisfactory from the view point of today's air pallution problem. The fuel like LNG and naphtha is more and more required.
    For this purpose, Ube process can successfully be applied; heavy residue oil being gasified in a unique fluidized bed, most of sulfur converted into H2S, desulfurized in the gas phase by the conventional absorption process and the high calorie product gas 6, 000-8, 000kcal/Nm3 utilized as a fuel gas for combustion, which is practically completely free the sulfur compounds.
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  • The Economics of Power Generation VIA SGP
    G. J. van den Berg, R. F. Baumann
    1973 Volume 52 Issue 4 Pages 255-260
    Published: April 20, 1973
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.52.255
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    Compared with a conventional oil fired power station the SGP/PS has the following attractive characteristics:
    1) Some 90% to 95% of the sulphur in fuel is not emitted to the atmosphere but is recovered as elemental sulphur. The “sulphur removal costs” compares favourably with the costs of alternative desulphurization techniques.
    2) No emission of particulate matter.
    3) Low flame temperatures are applied which can be expected to result in low emission of nitrogen oxides.
    4) Reduced cooling water requirement.
    5) The operation at elevated pressure results in the use of compact, shop fabricated equipment which will have a favourable effect on construction time.
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  • On Production of SNG by Using Heavy Oil Feedstocks
    Isami Ohoka
    1973 Volume 52 Issue 4 Pages 261-267
    Published: April 20, 1973
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.52.261
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    The production of SNG from heavy oil feed stocks has arousec world wide attention and in Japan also it is attracting interest as a back-up alternative to LNG, weans to prererve gas energy resources and an effective way to prevent pollution with maximum efficiency in the use of energy contained in the fossil fuel. This lecture dealt with the various processes of SNG production using a typical mid-Eas crude oil as feedstock.
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  • LNG Fired Power Plant
    Installation and Operation
    Tatsuzi Sasaki
    1973 Volume 52 Issue 4 Pages 268-281
    Published: April 20, 1973
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.52.268
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    Mianmi-Yokohama Thermal Power Station (Tokyo Electric Power Co, LTD.) is the first power station in the warld, which burns L. N. G. only.
    This article discribes the installations and actual results during about two years after construction of the power plant.
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  • The Effects of Fossil Fuel on Boiler Design
    Minoru Fujii
    1973 Volume 52 Issue 4 Pages 282-292
    Published: April 20, 1973
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.52.282
    JOURNAL FREE ACCESS
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    Boiler design is generally reflected from both combustion flue gas and fluid flow conditions.
    Combustion flue gas, compositions, which effects on heat transmission and others, are different depending on the composition of fuel.
    Natural gas or LNG firing boiler is lessthermal efficient, however, can be designed with a few consideration on corrosion.
    Natural gas contains no chemically bonded nitrogen, therfore, nitrogen oxide in flue gas can be reduced realively easily with two stage combustion and/or gas recirculation through burners.
    Carolific value and other specification of gassified fuel are ranged variously, and resulted from gassification processes.
    Lower calorific gas fuel firing boiler can be designed similarly as blast furnace gas firing boiler, and almost same design concept as natural gas is applied for higher calorific gas fuel.
    Design consideration on naphtha firing is different from residual fuel oil, especially on fuel firing equipments and system.
    Naphtha is burnt slowly as compared with residual fuel oil, and it results in lower nitrogen oxide in flue gas.
    Various kinds of fuel described on the above can be burnt successfully with existing burners, multi spud gas burner, scroll type burner and steam atomizing oil burner.
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  • [title in Japanese]
    1973 Volume 52 Issue 4 Pages 297-303
    Published: April 20, 1973
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.52.297
    JOURNAL FREE ACCESS
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  • Erratum
    1973 Volume 52 Issue 4 Pages 305
    Published: 1973
    Released on J-STAGE: February 23, 2011
    DOIhttps://doi.org/10.3775/jie.52.4_305
    JOURNAL FREE ACCESS
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