Experimental Determination and Prediction of Gas Solubility Data for Methane + Water Solutions Containing Different Monovalent Electrolytes

Abstract

Gas solubility data of methane (CH4) in aqueous electrolyte solutions were measured using the static synthetic method in a temperature range from 313 to 373 K, at pressures up to 10 MPa, and with molalities up to 8 mol·(kg of water)-1. The experimental P − x data were used to fit interaction parameters for an equation of state approach, which consists of a combination of the predictive Soave−Redlich−Kwong (PSRK) group contribution equation of state and the LIFAC method for the prediction of vapor−liquid equilibria in systems with strong electrolytes. Furthermore, Henry coefficients were derived from these experimental P − x data and compared to the results of the extended PSRK model.

Quantitative Raman spectroscopic investigation of geo-fluids high-pressure phase equilibria: Part II. Accurate determination of CH4 solubility in water from 273 to 603 K and from 5 to 140 MPa and refining the parameters of the thermodynamic model

“…4 and 5, respectively. Our data are in good agreement with Amirijafari and Campbell [8], Culberson and Mcketta [14], O'sullivan and Smith [16], Price [20], Yokoyama et al [26], Wang et al [27], Gao et al [28], Dhima et al [31], Kiepe et al [34], Chapoy et al [33,37], Kim et al [35], Wang et al [36] and Qin et al [38]. The maximum deviation between previous data and ours are generally within AE5%.…”

“…Frolich et al [11] conducted the first study of the solubility of methane in water under certain high pressure conditions (2-14.2 MPa). Since then, many studies, e.g., Michels et al [12]; Culberson et al [13]; Culberson and Mcketta [14]; Duffy et al [15]; O'Sullivan and Smith [16]; Amirijafari and Campbell [8]; Sultanov et al [17]; Price [20]; Cramer [25]; Yokoyama et al [26]; Wang et al [27]; Gao et al [28]; Lekvam and Bishnoi [29]; Song et al [30]; Dhima et al [31]; Yang et al [32]; Chapoy et al [33,37]; Kiepe et al [34]; Kim et al [35]; Wang et al [36]; Qin et al [38]; Campos et al [9], have been performed at intermediate and high-pressures. But most of them are concentrated in the temperature and pressure ranges of 293-444 K and 0.1-70 MPa.…”

Calculation of vapor–liquid equilibrium and PVTx properties of geological fluid system with SAFT-LJ EOS including multi-polar contribution. Part III. Extension to water–light hydrocarbons systems

“…Thus, this model did not use the data of Sultanov et al (1972) for parameterization. This model also agrees well with CH 4 solubility data measured by O'Sullivan and Smith (1970), Blount and Price (1982), Lekvam and Bishnoi (1997), Dhima et al (1998), Kiepe et al (2003), Wang et al (2003), Chapoy et al (2004a), Qin et al (2008). On the other hand, CH 4 solubility data reported by Michels et al (1936) and Duffy et al (1961) were not used by this study for comparison because they are inconsistent with other data sets as evaluated by Duan and Mao (2006).…”

A thermodynamic model for calculating methane solubility, density and gas phase composition of methane-bearing aqueous fluids from 273 to 523K and from 1 to 2000bar

“…Blanco and Smith (1978), Duffy et al (1961) and Michels et al (1936) measured the CH 4 solubility in aqueous CaCl 2 solutions and Stoessell and Byrne (1982b) measured CH 4 solubility in different aqueous salt solutions at 298 K and pressure below 52 bar. Kiepe et al (2003) measured the CH 4 solubility in KCl solutions below 100 bar. Experimental data for CH 4 in aqueous CaCl 2 solutions from Duffy et al (1961) and Michels et al (1936) are unreliable, as are those in NaCl solutions, due to adopting the inaccurate pressure decline technique.…”