Experimental determination and modelling of high-pressure phase behavior for the binary system CO2 + cyclooctane
نویسندگان
چکیده
Using a synthetic method, the phase behavior of CO2 (1) + cyclooctane (2) binary system was for first time experimentally studied between 292.95 K and 373.55 K. In this temperature range, bubble- dew-point pressures, ranging from 13.2 to 183.4 bar were measured carbon dioxide mole fractions 0.1014 0.9701. A total 96 experimental data points acquired. The obtained using high-pressure cell by visual observation transitions. These measurements made it possible conclude that probably exhibits type V in classification scheme Van Konynenburg Scott. particular, suspected lower critical end point (LCEP) found be 303 Despite complexity behavior, could accurately correlated with Peng-Robinson equation state combined sophisticated mixing rules either involve temperature-dependent interaction parameters (kij(T)) or embed residual part Wilson activity coefficient model.
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ژورنال
عنوان ژورنال: Journal of Supercritical Fluids
سال: 2021
ISSN: ['1872-8162', '0896-8446']
DOI: https://doi.org/10.1016/j.supflu.2021.105249