Isothermal P, x, y data for the argon+carbon dioxide system at six temperatures from 233.32 to 299.21K and pressures up to 14MPa

The phase equilibrium and density studies of the ternary mixtures of CO 2 + Ar + N 2 and CO 2 + Ar + H 2 , systems relevance to CCS technology

“…The solid and dashed lines represent the unsmoothed bubble-and dew-point line of CO2 + N2 with xN2 = 0.100. For the CO2 + Ar system, the phase transition pressures at xAr = 0.100 are interpolated from the p-x diagrams reported in the literature: () Köpke and Eggers (2007), () Sarashina et al (1971a), () Kaminishi et al ( 1968), () Coquelet et al (2008). () CO2 + Ar + N2 + O2 with xCO2 = 0.8983, xAr = 0.0205, xN2 = 0.0307 and xN2 = 0.0505 (Chapoy et al, 2013b) .…”

“…The phase transition pressures for the CO2 + Ar mixture with xAr = 0.100 were obtained by interpolating the p-x phase diagrams reported in the literature (Coquelet et al, 2008;Kaminishi et al, 1968;Köpke and Eggers, 2007;Sarashina et al, 1971a) Furthermore, similar comparisons are made for binary and ternary mixtures containing 98% of CO2, see Figure S1 in the Electronic Supplementary Material. As expected, the differences in both the bubble-and dew-point pressures are within experimental uncertainty between 98%CO2 + 1%Ar + 1% N2, 98%CO2 + 2%N2 and 98%CO2 + 2%Ar because of the low mole fraction of the impurities in the mixtures.…”

“…Both kAr-N2 and kAr-H2 were set to a default value of 0 because either Ar, N2 or H2 are minor components (mole fraction < 0.05) in the two ternary mixtures. kCO2-Ar was initially fitted by using the VLE data reported by Ahmad et al (2014), Coquelet et al (2008), Kaminishi et al (1968), Köpke and Eggers (2007) and Sarashina et al (1971a). The obtained temperature-independent parameter was 0.1343.…”

“…Recently, much attention has been given to studies of the thermodynamic properties, such as vapour-liquid equilibrium (VLE) and density of CO2 mixtures with impurities. A number of research groups have studied some of these key binaries, such as CO2/N2 (Fandino et al, 2015;Mantovani et al, 2012;Tenorio et al, 2015;Westman et al, 2016b), CO2/Ar (Coquelet et al, 2008;Köpke and Eggers, 2007;Mantovani et al, 2012;Yang et al, 2015a), CO2/H2 (Cipollina et al, 2007;Fandino et al, 2015;Sanchez-Vicente et al, 2013;Tenorio et al, 2015), CO2/O2 (Mantovani et al, 2012;Westman et al, 2016a), CO2/SO2 (Coquelet et al, 2014;Köpke and Eggers, 2007), CO2/CO (Cipollina et al, 2007), CO2/H2S (Chapoy et al, 2013a) and CO2/H2O (Hou et al, 2013;Valtz et al, 2004), which either focused on the binaries with an insufficient amount of data under the conditions relevant to CCS or aimed at reducing experimental uncertainties. A comprehensive data survey of the available thermodynamic properties of binary systems with CO2 can be found in the monograph by Kunz et al (2007) and in the recent reviews by Munkejord et al (2016) and Li.…”

Interfacial tensions of systems comprising water, carbon dioxide and diluent gases at high pressures: Experimental measurements and modelling with SAFT-VR Mie and square-gradient theory

“…In the present work, a temperature-dependent binary interaction parameter, k ij , has been estimated using the experimental solubility data of N 2 in H 2 O at temperatures between (274.20 and 362.95) K provided in reference [122]. Additionally, k H 2 O,Ar and Γ H 2 O,Ar were estimated using data from [123], k CO 2 ,N2 and Γ CO 2 ,N2 were estimated using data from [124], and k CO 2 ,Ar and Γ CO 2 ,Ar were estimated using data from [125].…”