Phase Behavior of Propane and Propene Hydrates

The compositions of propane, propene, and propane-propene hydrates varied from 5 to 15 mols of water per mol of hydrocarbon. No appreciable separation of the propene from the propane was found between the excess liquid hydrocarbon phase and the hydrate phase. These facts represent the results of twenty experiments at 400 psia and 33 - 39° F. While the variations in apparent compositions are over one hundred times the experimental error as demonstrated by material balances, no theoretical explanation is offered to interpret this behavior.