Methane Exploitation by Carbon Dioxide from Gas Hydrates—Phase Equilibria for CO2-CH4 Mixed Hydrate System—

• Ohgaki Kazunari

  Dept. of Chem. Eng., Osaka Univ.

• Takano Kiyoteru

  Dept. of Chem. Eng., Osaka Univ.

• Sangawa Hiroyuki

  Dept. of Chem. Eng., Osaka Univ.

• Matsubara Takuya

  Dept. of Chem. Eng., Osaka Univ.

• Nakano Shinya

  Dept. of Chem. Eng., Osaka Univ.

書誌事項

タイトル別名

• Methane exploitation by carbon dioxide from gas hydrates. Phase equilibria for CO2-CH4 mixed hydrate system.

抄録

Natural-gas hydrate fields having a large amount of methane deposits have become the object of public attention as a potential natural-gas resource. An idea of methane exploitation in linkage with CO₂ isolation has been presented elsewhere. In the present study, the isothermal phase equilibrium relations of pressure and compositions in the gas, liquid, and hydrate phases for the CO₂-CH₄ mixed hydrate system at 280 K are obtained in company with the apparent Henry constants for the methane-water system and the three-phase coexisting lines for the methane hydrate system. The averaged distribution coefficient of methane between gas phase and hydrate phase is about 2.5, that is, methane in the hydrate phase is replaced selectively by CO₂. This is the first experimental evidence for the possibility of methane exploitation combined with CO₂ isolation.

収録刊行物

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 29 (3), 478-483, 1996

  公益社団法人 化学工学会

キーワード

• Energy Resource
• Natural Gas Exploitation
• CO<SUB>2</SUB> Isolation
• Environmental Problem
• Gas Hydrate

詳細情報

• CRID: 1390001204565300224
• NII論文ID: 130000021004
• NII書誌ID: AA00709658
• DOI: 10.1252/jcej.29.478
• COI: 1:CAS:528:DyaK28Xkt12gs7c%3D
• ISSN: 18811299
• ISSN: 00219592
• ISSN: http://id.crossref.org/issn/00219592
• Web Site: http://www.jstage.jst.go.jp/article/jcej/29/3/29_3_478/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可