A novel stirred microcalorimetric cell for DSC measurements applied to the study of ice slurries and clathrate hydrates

Abstract

A novel stirred microcalorimetric cell for DSC measurements applied to the study of ice slurries and clathrate hydrates. (2020) Chemical Engineering Research and Design, 160. 465-475.

Insights on the formation and dissociation mechanisms of cyclopentane hydrate obtained by using calorimetry and optical microscopy

“…Further, irrespective of experimental conditions, the onset, and enthalpy of hydrate dissociation are found to be ca. 7.0 ± 1.0 °C and 115,600 ± 4,500 J/mol, respectively, which is in agreement with the result of Delroisse et al, 2018but 3% off from Nakajima et al, 2008and Torré et al, 2020. Therefore, in the future, the crystallization process of CP hydrate in presence of various additives such as surfactants i.e. sodium dodecyl sulphate would be followed using optical microscopy in coupling with scanning calorimetry.…”

“…Subsequently, water molecules were found to be highly mobile in the hydrate layer and its growth rate was found to be controlled by the experimental sub-cooling temperatures. In continuation, thermophysical properties such as equilibrium temperature and enthalpy have been successfully estimated, for various gas hydrates, using DSC (Davies et al, 2010b;Delroisse et al, 2018;Torré et al, 2020;Martinez et al, 2008).…”