Pyrolysis of hydrocarbons as vacuum carburizing media

Ken Ohashi, Nilson Kunioshi

    研究成果: Conference contribution

    抄録

    In order to test the propensity to form soot in the vacuum carburizing method, the pyrolysis of acetylene, methane, propane, and cyclohexane as vacuum carburizing media was studied at typical operating conditions of vacuum carburizing. Under the test conditions, methane is the most stable media and propane and cyclohexane are the easiest to decompose. The propensity to form soot in the vacuum carburizing furnace varies, then, according to the media. The pyrolysis of the hydrocarbons was also calculated by means of a reaction kinetics model with a software package for combustion analysis. This model includes Polycyclic Aromatic Hydrocarbons (PAH) which are known as precursors to soot formation and growth. The calculated variation of the concentration of the pyrolyzed hydrocarbons with time agreed qualitatively with the experimental results.

    本文言語English
    ホスト出版物のタイトルProceedings of the 17th IFHTSE Congress
    出版社The Japan Society for Heat Treatment (JSHT)
    ページ121-124
    ページ数4
    1
    ISBN(印刷版)9780000000002
    出版ステータスPublished - 2009
    イベント17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008 - Kobe, Japan
    継続期間: 2008 10月 262008 10月 28

    Other

    Other17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008
    国/地域Japan
    CityKobe
    Period08/10/2608/10/28

    ASJC Scopus subject areas

    • 表面、皮膜および薄膜
    • 凝縮系物理学
    • 材料力学

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