Analysis of methane hydrate nucleation in water-in-oil emulsions: Isothermal vs constant cooling ramp method and new method for data treatment

V. A. Shestakov, A. K. Sagidullin, A. S. Stoporev, E. V. Grachev, A. Yu Manakov

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1 Citation (Scopus)

Abstract

Temperature dependence of methane hydrate nucleation rate in 50 wt% water in oil emulsion was studied within the temperature range from +2 to −6 °C (supercooling values: 13–21 °C). It turned out that the temperature dependence of nucleation rate in this temperature interval cannot be described by the equations of the classical nucleation theory. This point is discussed with use of available literature data. An approach to the analysis of isothermal survival curves is suggested. Using the approach allows us to establish the amount of nucleation centers in the system and their relative activity. A probable number of nucleation centers and the effect of temperature on the manifestation activity of these centers were determined for the obtained experimental data.

Original languageEnglish
Article number114018
Number of pages10
JournalJournal of Molecular Liquids
Volume318
DOIs
Publication statusPublished - 15 Nov 2020

Keywords

  • Gas hydrate
  • Methane
  • Nucleation
  • Water in oil emulsion
  • FREEZING NUCLEATION
  • PARTICLES
  • CURVES
  • NANOPARTICLES
  • PARAMETERIZATION
  • DSC
  • KINETICS
  • FORMATION PROBABILITY-DISTRIBUTIONS
  • GAS
  • HETEROGENEOUS ICE NUCLEATION

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