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A composite phase diagram of structure H hydrates using Schreinemakers' geometric approach

January 1, 1996

A composite phase diagram is presented for Structure H (sH) clathrate hydrates. In this work, we derived the reactions occurring among the various phases along each four-phase (Ice/Liquid water, liquid hydrocarbon, vapor, and hydrate) equilibrium line. A powerful method (though seldom used in chemical engineering) for multicomponent equilibria developed by Schreinemakers is applied to determine the relative location of all quadruple (four-phase) lines emanating from three quintuple (five-phase) points. Experimental evidence validating the approximate phase diagram is also provided. The use of Schreinemakers' rules for the development of the phase diagram is novel for hydrates, but these rules may be extended to resolve the phase space of other more complex systems commonly encountered in chemical engineering.

Citation Information

Publication Year 1996
Title A composite phase diagram of structure H hydrates using Schreinemakers' geometric approach
Authors A.P. Mehta, T.Y. Makogon, R. C. Burruss, R.F. Wendlandt, E. D. Sloan
Publication Type Article
Publication Subtype Journal Article
Series Title Fluid Phase Equilibria
Index ID 70019026
Record Source USGS Publications Warehouse