Clathrate hydrate formed with methane and 2-propanol: Confirmation of structure II hydrate formation

Ryo Ohmura, Satoshi Takeya, Tsutomu Uchida, Takao Ebinuma

Research output: Contribution to journalArticle

126 Citations (Scopus)

Abstract

This paper reports confirmation of structure II hydrate formation in a methane-2-propanol-water system, which was previously suggested by Østergaard et al. (Ind. Eng. Chem. Res. 2002, 41, 2064-2068) based on a comparison of the phase-equilibrium data with corresponding statistical- thermodynamics predictions. A hydrate crystal sample was prepared with a 16.4 mass % aqueous solution of 2-propanol pressurized with methane and then subjected to a powder X-ray diffraction analysis. The X-ray diffraction pattern thus obtained from the sample indicated that the crystallographic structure of the hydrate was structure II. The pressure-temperature data for aqueous liquid-hydrate-methane-rich vapor three-phase equilibrium in a temperature range from T = 273 to 283 K are also reported.

Original languageEnglish
Pages (from-to)4964-4966
Number of pages3
JournalIndustrial and Engineering Chemistry Research
Volume43
Issue number16
Publication statusPublished - 2004 Aug 4
Externally publishedYes

Fingerprint

clathrate
2-Propanol
Methane
Propanol
Hydrates
methane
phase equilibrium
X-ray diffraction
Phase equilibria
Statistical mechanics
aqueous solution
thermodynamics
temperature
crystal
X ray diffraction analysis
Diffraction patterns
liquid
Vapors
prediction
Powders

ASJC Scopus subject areas

  • Polymers and Plastics
  • Environmental Science(all)
  • Chemical Engineering (miscellaneous)

Cite this

Clathrate hydrate formed with methane and 2-propanol : Confirmation of structure II hydrate formation. / Ohmura, Ryo; Takeya, Satoshi; Uchida, Tsutomu; Ebinuma, Takao.

In: Industrial and Engineering Chemistry Research, Vol. 43, No. 16, 04.08.2004, p. 4964-4966.

Research output: Contribution to journalArticle

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