Vapor-Liquid Equilibrium of Carbon Dioxide + Ethanol: Experimental Measurements with Acoustic Method and Thermodynamic Modeling

Table 9

VLE data at 318.2 K.

318.2 K
Pexp (MPa)		PR-MKP		PR quadratic		SAFT-ConvexBody		Conventional SAFT
	𝑥CO2exp	𝑥CO2calc	𝑦CO2calc	𝑥CO2calc	𝑦CO2calc	𝑥CO2calc	𝑦CO2calc	𝑥CO2calc	𝑦CO2calc
3.65	0.2074	0.2009	0.9892	0.2232	0.9887	0.1736	0.9915	0.1822	0.9917
5.12	0.3097	0.2992	0.9901	0.3272	0.9893	0.2759	0.9930	0.2850	0.9933
6.45	0.4110	0.4125	0.9895	0.4392	0.9885	0.4177	0.9935	0.4149	0.9939
7.30	0.5014	0.5195	0.9883	0.5334	0.9868	0.5719	0.9935	0.5424	0.9941
7.78	0.6109	0.6244	0.9870	0.6114	0.9851	0.6740	0.9934	0.6498	0.9940
7.97	0.7095	0.6956	0.9863	0.6596	0.9841	0.7102	0.9933	0.7043	0.9940
8.21	0.8072	0.8099	0.9853	0.8220	0.9823	0.7513	0.9932	0.7885	0.9939

𝑥_CO2: liquid phase molar fraction.
𝑦_CO2: vapor phase molar fraction.