Recent improvements in the high pressure differential scanning calorimetry method applied to the study of gas hydrates.

Rémi André (1) , Pierre Le Parlouer (1) , Laurent Marlin (2) , Frédéric Plantier (2) , Jean-Philippe Torre (2)

1 SETARAM Instrumentation
2 LFCR - Laboratoire des Fluides Complexes et leurs Réservoirs

A novel prototype of calorimetric cell has been developed and the technical details of the system and typical results are presented. It was demonstrated that this invention allows performing experiments under pressure, potentially up to 200bar with an in situ stirring system. The demonstration focuses particularly on the determination of the enthalpy variation and temperature of dissociation of CO2 hydrate and a positive comparison with published data. The use of such a system thus opens a wide range of potential practical applications for determining properties of complex fluids in both pressurized and agitated conditions.

Mots clés: High pressure calorimetry; CO2 hydrates; Dissociation enthalpies

Domaines: Génie chimique; Génie des procédés

Rémi André, Pierre Le Parlouer, Laurent Marlin, Frédéric Plantier, Jean-Philippe Torre. Recent improvements in the high pressure differential scanning calorimetry method applied to the study of gas hydrates.. The 8th International Conference on Gas Hydrates (ICGH8), Jul 2014, Beijing, China. pp.0. ⟨hal-02006481⟩