Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
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Volume 48, Issue 7
Displaying 1-8 of 8 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1969 Volume 48 Issue 7 Pages 541
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_541
    JOURNAL FREE ACCESS
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  • Production of n-Paraffins by UOP Molex Process
    Yoichi Hiratsuka
    1969 Volume 48 Issue 7 Pages 542-549
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_542
    JOURNAL FREE ACCESS
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    Recently, demand of n-paraffins in the C10 to C18 range is increasing as the law materials for prouction of soft synthetic detergent, chlorinated paraffins, synthetic proteins etc. There are two ways to separate n-paraffins from kerosene-gas oil fraction-Molecular Sieve Process and Urea Adduct Process.
    Molex Process developed by UOP is one of the typical molecular sieve process, which uses a fixed bed of molecular sieve 5A for the separation of n-paraffins in an isothermal, liquid phase operation.
    This paper described at first, the outline of the utilization and production of n-paraffiins and then mentioned Molex Process.
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  • MHC Process
    Production of Benzene by a Hydrodealkylation
    Ryoji Sako, Shinobu Masamune
    1969 Volume 48 Issue 7 Pages 550-558
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_550
    JOURNAL FREE ACCESS
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    The MHC process is a thermal hydrocracking and dealkylation process for production of benzene directly from hydrogenated pyrolysis gasoline, platformate or alkylaromatics.
    Based on fundamentel research work since 1957 by Mitsubishi Petrochemical Company, the process was developed as a joint project of Mitsubishi and Chiyoda Chemical Engineering and Construction Co., Ltd. The first commercial plant having feed oil capacity of 160, 000 tons per year has been in successful operation sinse December 1967, and the second plant is under construction for startup in 1970.
    Advantages claimed for the process include ability to treat feed stock containing as much as 30wt% of non-aromatic hydrocarbons; use of low purity hydrogen and efficient utilization of hydrogen; easy operability for extended period without need for shutdown; high-purity benzene (>99.99wt%); and excellent process selectivity (97-99%)
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  • Characteristics of Urea Adduction Process and Nurex Process
    Naoki Yata
    1969 Volume 48 Issue 7 Pages 559-564
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_559
    JOURNAL FREE ACCESS
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    Nurex process which has been developed by Nippon Mining Co., Ltd, and has the capacity of 40, 000 t/y production of normal paraffins from kerosene and gas oil by urea adduction technique, is now in successfull operation for about one year. In this paper the author has described about the recent theories and principles concerning with the urea adduction, refering to the 26 papers, and refered also characteristics of Nurex process.
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  • Sulfolane Process
    Toshio Oshima, Masanori Muto
    1969 Volume 48 Issue 7 Pages 565-572
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_565
    JOURNAL FREE ACCESS
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    Sulfolane process was developed by the research staff of the Shell organization in order to extract aromatics of high purity from the stocks such as pyrolysis gasoline and catalytic reformate.
    Based on various articles, solvent properties and process features were described.
    The following were concluded;
    (1) As sulfolane has high solvency, solvent ratio at an extractor can be reduced, resulting in lower construction and operation cost.
    (2) As Sulfolane has higher selectivity to aromatics, both recovery rate and purity of aromatic products are very high.
    (3) By use of Rotating Disc. Contactors, extraction and raffinate water wash can be made effectivety.
    (4) Due to the above advantages, Sulfolane process has been applied world-wide.
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  • [title in Japanese]
    [in Japanese]
    1969 Volume 48 Issue 7 Pages 573-575
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_573
    JOURNAL FREE ACCESS
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  • Catalytic Activity of Semiconductive Barium Titanate for Carbon Monoxide Oxidation
    Hiroshi Hara, Takashi Shimizu, Koji Shimada, Koji Ando, Hiroshi Yanai
    1969 Volume 48 Issue 7 Pages 576-580
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_576
    JOURNAL FREE ACCESS
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    Semiconductive barium titanates are made from ferro-electric barium titanate by doping impurity of lanthanum. The impurity contents are 0.003 (catalyst A) and 0.005 (B) in mole respectively. From the activity of those catalysts for the carbon monoxide oxidation reaction, the following results are obtained.
    I) The semiconductive catalyst A and B are both active for the carbon monoxide oxidation, while pure barium titanate is nonactive.
    II) The catalytic activity of catalyst A is higher than that of catalyst B.
    III) The catalytic activity decreases with the reaction time, reaching constant activity after 120-150 minutes.
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  • [title in Japanese]
    1969 Volume 48 Issue 7 Pages 586-591
    Published: July 20, 1969
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.48.7_586
    JOURNAL FREE ACCESS
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