No.31 タール中窒素のモデル化合物の分解に対するリモナイトの触媒性能

DOI

書誌事項

タイトル別名
  • No.31 Catalytic Performance of Limonite in the Decomposition of Pyridine as a Model Compound of Tar Nitrogen

抄録

Catalytic decomposition of pyridine (C_5H_5N) with an Australian α-FeOOH-rich limonite ore has been studied with a vertical, cylindrical quartz reactor to develop a novel hot gas cleanup method of removing the nitrogen present in tar as N_2. The limonite achieves the almost complete decomposition of 100 ppmv C_5H_5N in inert gas at 500℃ under a large space velocity of 51000 h^<-1> and maintains the high activity at least for 10h. The limonite can also give high N_2 yield of more than 85%, and the yield is almost constant for 10h reaction. The XRD analyses reveal that α-FeOOH in the limonite is transformed into metallic iron (α-Fe) with the average crystalline size of 25 nm upon H_2 reduction at 500℃. It is thus probable that the finely dispersed α-Fe can catalyze N_2 formnation from pyridine.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390001205771433856
  • NII論文ID
    110009725929
  • DOI
    10.20550/jiesekitanronbun.50.0_60
  • ISSN
    24238309
    24238295
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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