Phase equilibrium for clathrate hydrates formed with methane + ethane + propane mixtures at temperatures below the freezing point of water

Keita Yasuda, Hiroyuki Ogawa, Ryo Ohmura

研究成果: Article査読

8 被引用数 (Scopus)

抄録

This paper reports the three-phase (ice + hydrate + guest-rich vapor) equilibrium pressure-temperature conditions at temperatures (243 to 272) K in the systems of water and each of the following two ternary gas mixtures of methane, ethane, and propane: 90:7:3 molar ratio and 99.48:0.5:0.02 molar ratio. The former is a simulated natural gas (natural-gas composition). The latter has a methane-rich composition that is equal to that of the vapor phase in equilibrium with the clathrate hydrate that has the guest composition of 90:7:3 molar ratio. The pressure ranges of the present measurements in the two systems are (0.233 to 0.711) MPa in the natural-gas-composition gas mixture system and (0.939 to 2.070) MPa in the methane-rich-composition gas mixture system. The measurements were carried out using the batch, isochoric procedure. The measured data were compared with the corresponding predictions using phase equilibrium calculation programs.

本文言語English
ページ(範囲)358-361
ページ数4
ジャーナルJournal of Chemical and Engineering Data
55
1
DOI
出版ステータスPublished - 2010 1 14

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)

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