Thermodynamic Study of Mixtures of Compounds Present During the Carbon Dioxide Capture, Transport and Storage

Within the fight against global warming and the reduction of greenhouse-gases emission, research has been particularly intense over the last years to develop efficient processes of carbon dioxide captures. Indeed, along with carbon dioxide and water, a great number of compounds such as O2, N2, Ar, SOx, NOx, H2 and CO can be present at different levels of concentration. The objective of this communication is to provide new sets of data to characterize phase equilibrium of these systems for the development of geological storage technologies. So, Isothermal vapour-liquid equilibrium data are reported for the following systems (SO2-O2-N2 and CO2-O2- H2O). The pressure and temperature ranges for this study are 6-18 MPa and 323-373 K, respectively. All measurements were carried out using an apparatus based on the “static-analytic” method.