Henry’s Constants and Vapor–Liquid Distribution Constants for Gaseous Solutes in H2O and D2O at High Temperatures

Abstract

We have developed correlations for the Henry's constant k H and the vapor-liquid distribution constant K D for 14 solutes in H 2 O and seven solutes in D 2 O. The solutes considered are common gases that might be encountered in geochemistry or the power industry. Solubility data from the literature were critically assessed and reduced to the appropriate thermodynamic quantities, making use of corrections for nonideality in the vapor and liquid phases as best they could be computed. While the correlations presented here cover the entire range of temperatures from near the freezing point of the solvent to high temperatures approaching its critical point, the main emphasis is on representation of the high-temperature behavior, making use of asymptotic relationships that constrain the temperature dependence of k H and K D near the critical point of the solvent.

IUPAC-NIST Solubility Data Series. 95. Alkaline Earth Carbonates in Aqueous Systems. Part 1. Introduction, Be and Mg

“…Crovetto 32 also developed an equation valid from 100 C to the critical point of water. This equation corresponds well with the equation of Fernández-Prini et al 36 to within a few percent (except at the critical point), whereas the other correlations typically deviate 10% or more in the high-temperature range.…”

“…Critical reviews of the solubility of CO 2 have been made by Crovetto 32 and by Carroll et al 33 Compilations are available from Scharlin et al 34 De Visscher and Vanderdeelen 18 found that the evaluation of Crovetto 32 at 0-80 C is more consistent with the thermodynamic data of CODATA 35 than the evaluation of Carroll et al 33 Thermodynamic properties derived from different models are given in Table 1. A more recent review of CO 2 solubility data is by Fernández-Prini et al 36 However, their correlation has poor consistency with CODATA. 35 From the above studies, the equation of Crovetto 32 is the most appealing one because of its higher consistency with CODATA, and because it is based on a large data set.…”

“…To obtain an equation that is highly accurate in a wide temperature interval, an equation of the same form as Fernández-Prini et al 36 was adopted, and fitted to values of the Henry constant predicted by the corrected low-temperature equation of Crovetto 32 at 0-80 C in steps of 5 C, and to values of the high-temperature equation of Crovetto 32 at 100-360 C in steps of 20 C. Larger steps were taken in the high temperature range to reflect the fact that the high-temperature correlation is less accurate than the low-temperature correlation. In its original form, the equation of Fernández-Prini et al 36 could be fitted to the values with an accuracy of 0.026 ln units, which was deemed inadequate for the current purpose.…”

“…In its original form, the equation of Fernández-Prini et al 36 could be fitted to the values with an accuracy of 0.026 ln units, which was deemed inadequate for the current purpose. The addition of a constant term to the equation improved the fit to an accuracy of 0.0064 ln units, well within the accuracy of either equation of Carroll.…”

Overview of mass transfer enhancement factor determination for acidic and basic compounds absorption in water

“…The Henry's coefficient can be found in the literature, using the compilation of Sander or specific articles [36][37][38][39][40][41]. When the value cannot be found for a specific compound or in specific conditions, it remains possible to use some thermodynamic models which provide good accuracies [39,[42][43][44][45].…”