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

Table 10

Experimental [7] and predicted solubility of CO₂ in water at equilibrium with gas hydrates (liquid water-hydrate equilibrium) [3].

𝑇/K	𝑃/MPa	Experimental CO2 solubility [7]/mole fraction	Predicted CO2 solubility using thermodynamic model/mole fraction	AD%
280.32	4.99	0.0256	0.0243	5.1
280.59	6.08	0.0270	0.0249	7.8
280.72	6.08	0.0268	0.0252	6.0
280.74	6.08	0.0268	0.0252	6.0
279.98	6.09	0.0262	0.0236	9.9
278.71	6.10	0.0221	0.0211	4.5
278.99	6.10	0.0231	0.0216	6.5
279.01	6.10	0.0236	0.0217	8.1
279.12	6.10	0.0232	0.0219	5.6
279.32	6.10	0.0242	0.0223	7.9
279.45	6.10	0.0239	0.0225	5.9
279.49	6.10	0.0235	0.0226	3.8
279.58	6.10	0.0249	0.0228	8.4
279.94	6.10	0.0260	0.0235	9.6
280.43	6.10	0.0262	0.0245	6.5
280.98	6.10	0.0269	0.0258	4.1
280.26	8.16	0.0268	0.0242	9.7
280.34	10.04	0.0263	0.0244	7.2
278.37	10.35	0.0227	0.0205	9.7
278.39	10.35	0.0224	0.0205	8.5
278.39	10.37	0.0223	0.0205	8.1
279.18	10.40	0.0226	0.0220	2.7
278.65	10.41	0.0235	0.0210	10.6
279.41	10.43	0.0248	0.0224	9.7
279.13	10.44	0.0241	0.0219	9.1
279.60	10.44	0.0250	0.0227	9.2
280.30	10.44	0.0258	0.0243	5.8
280.30	10.44	0.0257	0.0243	5.4
280.40	10.44	0.0260	0.0245	5.8
280.00	10.45	0.0256	0.0236	7.8
277.84	10.47	0.0201	0.0196	2.5
280.34	14.20	0.0260	0.0244	6.2