Vapor–liquid equilibria and phase densities at saturation of carbon dioxide+1-butanol and carbon dioxide+2-butanol from 313 to 363K

Solubility of Carbon Dioxide in Secondary Butyl Alcohol at High Pressures: Experimental and Modeling with CPA

“… a Comparison of the solubility of CO 2 (in mole fraction) in secondary butyl alcohol obtained in this work with literature data [ 3 , 5 – 7 ] at 313 K; b comparison of the solubility of CO 2 (in mole fraction) in secondary butyl alcohol obtained in this work with literature data [ 2 , 4 , 6 ] at 331–335 K; c comparison of the solubility of CO 2 (in mole fraction) in secondary butyl alcohol obtained in this work with literature data [ 2 – 4 ] at 341–348 K; d comparison of the solubility of CO 2 (in mole fraction) in secondary butyl alcohol obtained in this work with literature data [ 3 , 4 ] at 351–353 K; e comparison of the solubility of CO 2 (in mole fraction) in secondary butyl alcohol obtained in this work with literature data [ 2 , 3 , 6 ] at 363–374 K …”

“…While the data of this work match rather well with those of Stevens et al [ 3 ] and Secuianu et al [ 5 ], the data by Hiaki et al [ 7 ] are situated at lower pressures. At the higher temperatures, the curvatures of the solubility curves measured by Elizalde-Solis and Galicia-Luna [ 6 ] are greater than those of this work and also those by Secuianu et al and Stevens et al, so their solubility pressures fall below ours at lower concentrations, while rising to pressures higher than the curves of this work at mid-range concentrations, and then again fall to lower pressures at high concentrations of CO 2 (see for example the curves at 333 and 363 K). In contrast, the data by Chen et al [ 4 ] (for example, see the isotherm at 351 K) are the opposite and have less curvature than those of Stevens et al [ 3 ], Secuianu et al [ 5 ], and this work.…”

“…Elizalde-Solis and Galicia-Luna used a static-analytic method, with an Anton Paar U-tube densitometer coupled to the stainless steel cell, for the simultaneous determination of the saturated densities of the equilibrium vapor and liquid phases. The uncertainty of pressure, temperature, density, and liquid and vapor molar compositions are 0.008 MPa, 0.05 K, 0.17 kg·m 3 , 1 and 2 %, respectively [ 6 ]. They correlated their experimental vapor–liquid equilibrium data using the Peng–Robinson EoS coupled with the Wong–Sandler mixing rules and succeeded in obtaining good agreement [ 6 ].…”

“…The uncertainty of pressure, temperature, density, and liquid and vapor molar compositions are 0.008 MPa, 0.05 K, 0.17 kg·m 3 , 1 and 2 %, respectively [ 6 ]. They correlated their experimental vapor–liquid equilibrium data using the Peng–Robinson EoS coupled with the Wong–Sandler mixing rules and succeeded in obtaining good agreement [ 6 ].…”

Twenty Years of Experimental Determinations of Thermophysical Properties with High Accuracy: Thermodynamics Laboratory, ESIQIE-IPN, México

“…Initially, the apparatus used was based on the static-analytic method and has been designed to perform fast determinations of vapor–liquid equilibria and critical pressures up to 60 MPa and 523 K . However, in order to determine other thermophysical properties within the phase equilibrium, a second experimental apparatus was developed to simultaneously determine at high pressures liquid–vapor equilibrium or vapor–liquid–liquid equilibrium and saturation densities. , Actually, both apparatuses are part of the experimental facilities of the Thermodynamics Laboratory.…”