Conversion of Tar in Hot Coke Oven Gas by Pyrolysis and Steam Reforming

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Possibility to convert the tar vapor in the hot coke oven gas (COG) to a synthesis gas was investigated. Tar condensed from an actual COG as well as model compounds such as benzene, naphthalene, and pyrene were used as the reactants. Experiments of the pyrolysis and catalytic steam reforming of the tar in a helium, a steam, and a simulated COG atmospheres were carried out. More than 80% of tar could be decomposed in several seconds by pyrolysis at temperature ≥1000°C<BR>The coke yield reached 80% and the main gas products were methane and hydrogen. Coke deposition was reduced in the presence of steam by steam gasification of the coke. When the tar was pyrolyzed in the simulated COG, coke deposition from methane in addition to the deposition from the tar was observed at high temperature. The reverse shift reaction forming carbon monoxide and steam also occurred during the tar pyrolysis in the simulated COG. The coke formation was not reduced greatly even in the presence of the reforming catalysts.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 36(7), 735-741, 2003-07-01

    The Society of Chemical Engineers, Japan

参考文献:  9件中 1-9件 を表示

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各種コード

  • NII論文ID(NAID)
    10013413662
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    6616447
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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