Experimental study of high pressure phase equilibrium of (CO2 + NO2/N2O4) mixtures |
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| Institution: | 1. Laboratoire de Chimie Agro-industrielle (LCA), Université de Toulouse, INRA, INPT, 4 allée Emile Monso, 31030 Toulouse cedex 4, France;2. Département des Sciences et Technologies Alimentaires, Faculté des Sciences Agronomiques, Université Libanaise, Dekwaneh, Lebanon;3. Platforme de Recherches et d''Analyses en Sciences de l''Environnement (PRASE), Ecole Doctorale des Sciences et Technologies, Université Libanaise, Hadath, Lebanon;4. Laboratoire de Génie Chimique (LGC), INP-ENSIACET, Université de Toulouse, 31030 Toulouse, France |
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| Abstract: | Experimental bubble pressure, as well as liquid density of (CO2 + NO2/N2O4) mixtures are reported at temperatures ranging from (298 to 328.45) K. Experiments were carried out using a SITEC high-pressure variable volume cell. Transition pressures were obtained by the synthetic method and liquid density was deduced from measurement of the cell volume. Correlation of experimental results was carried out without considering chemical equilibrium of NO2/N2O4 system. (Liquid + vapour) equilibrium was found to be accurately modelled using the Peng–Robinson equation of state with classical quadratic mixing rules and with a binary interaction coefficient kij equal to zero. Nevertheless, modelling of liquid density values was unsatisfactory with this approach. |
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