Removal of Hydrogen Sulfide from Gas Mixture by Hydrate Formation

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The feasibility of H<SUB>2</SUB>S removal from gas mixture using hydrate formation was examined theoretically as well as experimentally. The hydrate formation conditions for a three-component gas mixture of CO<SUB>2</SUB>, He and a small amount of H<SUB>2</SUB>S (30%-CO<SUB>2</SUB>, 70%-He and 50 ppm-H<SUB>2</SUB>S) were determined using a high-pressure equilibrium cell by a visual observation method. It was found that He only plays a role in gas diluents, whereas H<SUB>2</SUB>S decreases the dissociation pressures of gas hydrate slightly. A fugacity-based model was used to demonstrate the characteristics of H<SUB>2</SUB>S removal by hydrate formation. The advantage of a gas hydration process for H<SUB>2</SUB>S removal was described in terms of removal efficiency. Upon calculation with our model, the removal efficiency by hydrate formation ranges from 8 to 11 and is approximately 3 or 4 times greater than that by liquid water scrubbing.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 36(8), 971-978, 2003-08-01

    公益社団法人 化学工学会

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各種コード

  • NII論文ID(NAID)
    10013414138
  • 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
    6654103
  • 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  NDL  J-STAGE 
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