Measuring hydrate thermodynamics and
E. Dendy Sloan, Jr., Ph.D.
Center for Hydrate Research
Colorado School of Mines
Wednesday, July 7, 1999
3:00 p.m.Pacific Forum
For the 200 years, mankind has studied hydrates by measuring every phase except the
hydrate phase. Typically reductions in gas phase pressure in a closed system are
attributed to hydrate concentration of formation; similarly increases in aqueous saline
concentration are attributed to pure waters removal into hydrates.
Three tools are readily available to measure the hydrate phase itself. The first tool
(diffraction) has been available for some time but is constrained to time-independent
power diffraction measurements and is therefore somewhat limited. The advent of the two
newer tools (NMR and Raman spectroscopy) combined with lasers and fiber optics, has
provided access to both the thermodynamic and kinetic regions of hydrate
This seminar will show the capability of NMR and Raman spectroscopy for hydrate
measurements and discuss possibilities of instrument field use.
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Last updated: December 19, 2000