Formation of cyclopentane methane binary clathrate hydrate in brine solutions

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Building on a our previous study on the kinetics of formation of cyclopentane (CP)-methane binary sII-type hydrate in well-agitated fresh water, analogous experiments have been performed in brine solutions at two salinities (3.5% and 7.0% NaCl, w/w) to investigate how salt affects this formation process thermodynamically and kinetically. The hydrate formation rate in salt water is found to be ~2-3 times smaller than that in fresh water at small subcooling levels Δ T< 4 K but at higher subcooling levels, the two become comparable. The methane occupancy in the small cavities of the sII hydrate is also estimated to be ~0.5 for methane pressures between 1 and 3. MPa under equilibrium conditions, as well as during growth at subcooled conditions (Δ T< ~ 7 K).

Original languageEnglish (US)
Pages (from-to)125-132
Number of pages8
JournalChemical Engineering Science
StatePublished - Feb 17 2016

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering


  • Binary clathrate hydrate
  • Brine solution
  • Cyclopentane methane hydrate
  • Growth kinetics
  • Mass transfer


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