Measurement and correlation of liquid-liquid equilibria for water + aromatic hydrocarbon binary systems at high temperatures and pressures

Liquid-liquid equilibria for water + aromatic hydrocarbon binary systems were measured by a flow method at high temperatures and pressures. The measured systems and conditions are as follows: water + toluene system, (573.2 and 583.2) K from (10.5 to 28.1) MPa; water + ethylbenzene system, (553.2 and 583.2) K from (10.4 to 26.4) MPa; water + p-xylene system, (553.2 and 583.2) K from (10.2 to 26.5) MPa. The experimental results were correlated by the SRK equation of state. An exponent-type mixing rule was used for the energy parameter. The experimental data are fitted well by the correlation.