SURFACE TENSION AND ADSORPTION IN GAS—LIQUID SYSTEMS AT MODERATE PRESSURES<sup>1</sup>

Masterton, William L.; Bianchi, J. F.; Slowinski, Emil J.

doi:10.1021/j100797a018

Cited by 52 publications

(30 citation statements)

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“…Thus, the interfacial region of such a system may be concentrated in the component whose intrinsic free energy is the smallest, as it is possible to obtain considerable decreases in surface tension by adsorption of such a substance. For the kind of systems considered here, this assumption is supported by several works [14,[47][48][49][50], to mention only a few. Hence, for the systems under study here, there should not be any enrichment in the liquid-vapour interface of the component having the highest free energy that is to say the hydrocarbon.…”

Section: Numerical Resolution Of the Problemmentioning

confidence: 78%

Modelling of the surface tension of binary and ternary mixtures with the gradient theory of fluid interfaces

Miqueu

Mendiboure

Graciaa

et al. 2004

Fluid Phase Equilibria

160

177

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Section: Numerical Resolution Of the Problemmentioning

confidence: 78%

Modelling of the surface tension of binary and ternary mixtures with the gradient theory of fluid interfaces

Miqueu

Mendiboure

Graciaa

et al. 2004

Fluid Phase Equilibria

160

177

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“…As early as the beginning of the 1960s some papers appeared on the subject, treating it either theoretically 27,28 or experimentally. 29,30 For water with low molecular weight gases, surface tensions have been reported by Masterton et al 31 and Massoudi and King. 26 A serious problem in applying their results to the present nucleation data is the temperature.…”

Section: High Pressure Surface Tensionmentioning

confidence: 86%

High pressure nucleation in water/nitrogen systems

Luijten

Bosschaart

Dongen

1997

The Journal of Chemical Physics

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Nucleation rate measurements of water in the presence of nitrogen as a carrier gas are reported at total pressures near 10, 25, and 40 bar, and temperatures of 230 and 250 K. The results were obtained using our pulse-expansion wave tube, particularly suited for high pressure nucleation research. Enhanced fugacity of water vapor in the mixture, due to the presence of nitrogen, was quantitatively taken into account. Values of the enhancement factors as a function of pressure and temperature were correlated from accurate gravimetric measurements available in literature. The results demonstrate a strong influence of nitrogen pressure on the nucleation behavior of water, when temperature and supersaturation are kept fixed. The effect is associated with a decrease of the surface tension of water, due to the adsorption of nitrogen onto the liquid surface. A tentative model is presented that qualitatively describes this decreasing surface tension with pressure. The competition between the opposing effects of enhanced fugacity and decreasing surface tension is identified as a complicating factor in detecting pressure effects on nucleation. This conclusion is expected to hold for other vapor/carrier gas systems as well.

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“…Masterton et al . (1963) and Massoudi & King (1974) report the N 2 –water interfacial tension to range between 71 and 72 mN m −1 (T = 25–30°C, P < 12 MPa; Fig.…”

Section: Discussionmentioning

confidence: 99%

“… Interfacial tension data based on studies by Heurer (1957), Masterton et al . (1963), Massoudi & King (1974), Schowalter (1979), Chun & Wilkinson (1995), Sachs & Meyn (1995), da Rocha et al .…”

Section: Appendix: Nomenclaturementioning

confidence: 99%

Gas breakthrough experiments on pelitic rocks: comparative study with N₂, CO₂ and CH₄

et al. 2004

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The capillary-sealing ef®ciency of intermediate-to low-permeable sedimentary rocks has been investigated by N 2 , CO 2 and CH 4 breakthrough experiments on initially fully water-saturated rocks of different lithological compositions. Differential gas pressures up to 20 MPa were imposed across samples of 10±20 mm thickness, and the decline of the differential pressures was monitored over time. Absolute (single-phase) permeability coef®cients (k abs ), determined by steady-state¯uid¯ow tests, ranged between 10 À22 and 10 À15 m 2 . Maximum effective permeabilities to the gas phase k eff (max), measured after gas breakthrough at maximum gas saturation, extended from 10 À26 to 10 À18 m 2 . Because of re-imbibition of water into the interconnected gas-conducting pore system, the effective permeability to the gas phase decreases with decreasing differential (capillary) pressure. At the end of the breakthrough experiments, a residual pressure difference persists, indicating the shut-off of the gas-conducting pore system. These pressures, referred to as the`minimum capillary displacement pressures' (P d ), ranged from 0.1 up to 6.7 MPa. Correlations were established between (i) absolute and effective permeability coef®cients and (ii) effective or absolute permeability and capillary displacement pressure. Results indicate systematic differences in gas breakthrough behaviour of N 2 , CO 2 and CH 4 , re¯ecting differences in wettability and interfacial tension. Additionally, a simple dynamic model for gas leakage through a capillary seal is presented, taking into account the variation of effective permeability as a function of buoyancy pressure exerted by a gas column underneath the seal.

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SURFACE TENSION AND ADSORPTION IN GAS—LIQUID SYSTEMS AT MODERATE PRESSURES¹

Cited by 52 publications

References 0 publications

Modelling of the surface tension of binary and ternary mixtures with the gradient theory of fluid interfaces

Modelling of the surface tension of binary and ternary mixtures with the gradient theory of fluid interfaces

High pressure nucleation in water/nitrogen systems

Gas breakthrough experiments on pelitic rocks: comparative study with N₂, CO₂ and CH₄

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SURFACE TENSION AND ADSORPTION IN GAS—LIQUID SYSTEMS AT MODERATE PRESSURES1

Cited by 52 publications

References 0 publications

Modelling of the surface tension of binary and ternary mixtures with the gradient theory of fluid interfaces

Modelling of the surface tension of binary and ternary mixtures with the gradient theory of fluid interfaces

High pressure nucleation in water/nitrogen systems

Gas breakthrough experiments on pelitic rocks: comparative study with N2, CO2 and CH4

Contact Info

Product

Resources

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SURFACE TENSION AND ADSORPTION IN GAS—LIQUID SYSTEMS AT MODERATE PRESSURES¹

Gas breakthrough experiments on pelitic rocks: comparative study with N₂, CO₂ and CH₄