2026-05-05T18:23:46Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/432792026-03-23T09:13:51Zcom_10324_1170com_10324_931com_10324_894col_10324_1367

Lozano Martín, Daniel Vega Maza, David Martín González, María del Carmen Tuma, Dirk Chamorro Camazón, César Rubén 2020-10-30T08:41:14Z 2020-10-30T08:41:14Z 2020 The Journal of Supercritical Fluids Available online, 2020, 105074 In Press, Journal Pre-proof 0896-8446 http://uvadoc.uva.es/handle/10324/43279 10.1016/j.supflu.2020.105074 105074 The Journal of Supercritical Fluids Producción Científica Continuing our study on (CO2 + O2) mixtures, this work reports new experimental (p, ρ, T) data for two oxygen-rich mixtures with mole fractions x(O2) = (0.50 and 0.75) mol·mol−1, in the temperature range T = (250 to 375) K and pressure range p = (0.5 to 20) MPa, using a single-sinker densimeter. Experimental density data were compared to two well established equation-of-state models: EOS-CG and GERG-2008. In the p, T-range investigated, the EOS-CG gave a better reproduction for the equimolar mixture (x(O2) = 0.5), whereas the GERG-2008 performed significantly better for the oxygen-rich mixture (x(O2) = 0.75). The EOS-CG generally overestimates the density, while the GERG-2008 underestimates it. This complete set of new experimental data, together with previous measurements, is used to calculate the virial coefficients B(T, x) and C(T, x), as well as the second interaction virial coefficient B12(T) for the (CO2 + O2) system. Ministerio de Economía, Industria y Competitividad project ENE2017-88474-R Junta de Castilla y León project VA280P18 application/pdf eng Elsevier info:eu-repo/semantics/openAccess Termodinámica Carbon Thermodynamic characterization of the (CO2 + O2) binary system for the development of models for CCS processes: Accurate experimental (p, ρ, T) data and virial coefficients info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion https://www.sciencedirect.com/science/article/pii/S0896844620303259?via%3Dihub SI