Experimental measurements of carbon dioxide solubility in aqueous tetra-n-butylammonium bromide solutions

Surface tension between CO 2 gas and tetra- n -butylammonium bromide aqueous solution

“…The difference of density due to dissolving CO 2 , the uncertainty of the density, was calculated on the basis of thermodynamic theory in the same way as Lin et al [7]. The values for the mole fraction of CO 2 in the TBAB aqueous solution given by Lin et al [7] and Muromachi et al [8] were used to deduce the uncertainty of the density.…”

“…TBAB is one of the widely used phase transfer catalysts in various organic transformations [5,6]. Various properties of this salt like density [7], gas solubility [8], viscosity [9] and interfacial tension [3,4] have been reported. However, the measurement of surface tension under gas pressure was performed exclusively by Massoudi et al [10] 40 years ago without a clear description of the uncertainty of the measurements.…”

Accurate model based on artificial intelligence for prediction of carbon dioxide solubility in aqueous tetra‐n‐butylammonium bromide solutions

“…Existence of reliable and accurate data for the modeling of thermophysical properties of compounds is of crucial importance. Hence, for the purpose of this study, 77 experimental data points of CO 2 solubility in aqueous solutions of TBAB were utilized from a published work . The gathered data points include temperature (K), pressure (MPa), mass fraction of TBAB in feed aqueous solution ( w TBAB ), and mole fraction of TBAB in aqueous phase ( x TBAB ) as the input parameters and the solubility of CO 2 ( x CO2 ) as the output parameter.…”

“…Hence, for the purpose of this study, 77 experimental data points of CO 2 solubility in aqueous solutions of TBAB were utilized from a published work. 64 The gathered data points include temperature (K), pressure (MPa), mass fraction of TBAB in feed aqueous solution (w TBAB ), and mole fraction of TBAB in aqueous phase (x TBAB ) as the input parameters and the solubility of CO 2 (x CO2 ) as the output parameter. Table 1 represents statistical details about these parameters including the range, minimum, maximum, and average values of them.…”

Thermodynamic modeling of gas solubility in aqueous solutions of quaternary ammonium salts with the e-CPA equation of state

“…In the Section D of Support Information, the solubility data of N 2 and CO 2 in aqueous TBAB solution have been analyzed: We have compared the CO 2 solubility data from Muromachi et al [66] and data from Lin et al [3] at 298. 15 K. The deviations between the two data sets are small, so, the two data sets of CO 2 solubility are both included in this work.…”