Journal of Japan Society for Safety Engineering
Online ISSN : 2424-0656
Print ISSN : 0570-4480
ISSN-L : 0570-4480
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Volume 25, Issue 4
JOURNAL OF JAPAN SOCIETY FOR SAFETY ENGINEERING_1986_4
Displaying 1-8 of 8 articles from this issue
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REVIEW
  • Abnormal Reactions ill BenZene Hydrogenation (II)The Side Reactions to Produce n-Paraffines
    [in Japanese], [in Japanese]
    1986 Volume 25 Issue 4 Pages 206-212
    Published: August 15, 1986
    Released on J-STAGE: November 30, 2017
    DOIhttps://doi.org/10.18943/safety.25.4_206
    JOURNAL FREE ACCESS
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    The mechanism of the side reactions in the benzene hydrogenation reaction has bcen studied further. The result is as follows; n-hexane, which is produced by hydrogenation of cyclohexarie, undergoes further hydrogenation to produce n-pentane, n-butane, propane, ethane, and methane successively. The mechanisms of these successive reactions have all been found to be similar , to that of the main reaction. From the data obtained through integral-type reactor experimehts starting with cyclohexane, the apphrent reaction rate constants for the individual steps have beeri determined by use of a nonlinear least squares method. The concentrations of products at the reactor outlet calculated from the resulting rate constants agreed well with the observed ones.

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  • A　New　Air－tight　Test　Based　on　the Theoly of　the　Optimal　Prediction
    [in Japanese]
    1986 Volume 25 Issue 4 Pages 213-218
    Published: August 15, 1986
    Released on J-STAGE: November 30, 2017
    DOIhttps://doi.org/10.18943/safety.25.4_213
    JOURNAL FREE ACCESS
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    In　this　paper　a　new　air-tight　test　for　pressure　vessel　is　proposed、　It　is　based　on　the　theory of　the　optimal　prediction．We　desigll　some　models，one　is　a“no－leak”model　and　the　others　are “leak”models．Each　Kalman filter　of　these　models　produces filter　innovations　from　outputs　of　a pressure　sensor　and　the　multiple　hypothesis　detectlon　calculates　probabilities　of　each　modeL　We select　one　suitable　model　using　these　probabilities．Experimellting　this，it　was　found　that　this new test was useful and superior in accuracy and noise．

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TECHNICAL REPORT
ACCIDENT ANALYSIS
SALOON
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