Application of high pressure DSC to the kinetics of formation of methane hydrate inwater-in-oil emulsion

Abstract : A micro DSC analyzer fitted with special high-pressure vessels was used to investigate the kinetics of methane hydrate formation in the water phase dispersed as a stable emulsion in deep offshore drilling fluids. At high sub-cooling conditions, the peak of hydrate formation is perfectly visible and regular-shaped, and could be fitted by a Gaussian law. The average time for hydrate crystallization of the water droplets’ population was represented as a logarithmic function of the inverse of absolute temperature. At low sub-cooling conditions, the formation appears confused with the baseline; the amount of hydrate formed was thus measured from its enthalpy of dissociation, after periods of formation of variable duration.
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Journal of Thermal Analysis and Calorimetry, 2006, 85 (2), pp.361-368. 〈10.1007/s10973-006-7518-1〉
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Contributeur : Didier Dalmazzone <>
Soumis le : jeudi 23 juillet 2015 - 10:33:46
Dernière modification le : mardi 15 mai 2018 - 14:50:01

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Didier Dalmazzone, Nejib Hamed, Christine Dalmazzone, L. Rousseau. Application of high pressure DSC to the kinetics of formation of methane hydrate inwater-in-oil emulsion. Journal of Thermal Analysis and Calorimetry, 2006, 85 (2), pp.361-368. 〈10.1007/s10973-006-7518-1〉. 〈hal-01179675〉

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