Journal of Thermodynamics / 2009 / Article / Tab 8

Review Article

Development of Predictive Techniques for Estimating Liquid Water-Hydrate Equilibrium of Water-Hydrocarbon System

Table 8

Experimental [19] and predicted/calculated solubility of propane in pure water being in equilibrium with gas hydrates (liquid water-hydrate equilibrium) [4].

𝑇 / K 𝑃 / M P a Experimental [19] propane solubility/mole fraction ( × 1 0 4 )Predicted/calculated propane solubility using ANN algorithm/mole fraction ( × 1 0 4 )AD%Predicted propane solubility using thermodynamic model/mole fraction ( × 1 0 4 ) AD%

274.160.301 1 . 4 4 0 1.450.71.346.9
274.230.2531.4391.461.51.328.3
274.330.3581.5461.474.91.540.4
275.200.3021.5721.560.81.542.0
275.200.3521.5721.560.81.7913.9
276.160.355 1 . 6 4 2 1.661.11.3716.6

D a t a used for testing.
D a t a used for validation (the remaining data were used for training).
T h e vapor pressure of the empty hydrate lattice in the thermodynamic model for propane hydrate was slightly tuned.

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