Phase equilibrium relations for binary mixed hydrate systems composed of carbon dioxide and cyclopentane derivatives
Abstract
Thermodynamic stability boundaries of carbon dioxide+cyclopentane, carbon dioxide+cyclopentanone, and carbon dioxide+fluorocyclopentane mixed hydrates have been investigated in the range of 274.19–293.72K and up to 4.88MPa. The phase equilibrium curves of the structure-II mixed hydrates are located at a temperature remarkably higher than that of the structure-I simple carbon dioxide hydrate. The highest temperature point of each four-phase (hydrate, aqueous, cyclopentane derivative-rich, and gas phases) equilibrium curve was 292.60K (for the first system), 284.78K (for the second system), and 293.72K (for the third system)
- Publication:
-
Fluid Phase Equilibria
- Pub Date:
- January 2014
- DOI:
- 10.1016/j.fluid.2013.10.057
- Bibcode:
- 2014FlPEq.362..379M
- Keywords:
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- Clathrate hydrate;
- Phase equilibria;
- Powder X-ray diffractometry;
- Retrograde behavior