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Solubility of hydrogen in sodium chloride brine at high pressures
•New synthetic apparatus for gas-solubility measurements.•Detailed model of the experimental method.•Hydrogen solubility measured in water and NaCl brine.•Results correlated with Krichevsky-Kasarnovsky model.•Salting out described by Sechenov coefficient. We report measurements of the solubility of...
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Published in: | Fluid phase equilibria 2021-07, Vol.539, p.113025, Article 113025 |
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container_title | Fluid phase equilibria |
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creator | Torín-Ollarves, Geraldine A. Trusler, J.P. Martin |
description | •New synthetic apparatus for gas-solubility measurements.•Detailed model of the experimental method.•Hydrogen solubility measured in water and NaCl brine.•Results correlated with Krichevsky-Kasarnovsky model.•Salting out described by Sechenov coefficient.
We report measurements of the solubility of hydrogen in pure water and in sodium chloride brine of molality 2.5 mol/kg at temperatures between 323.15 K and 423.15 K and at pressures up to about 40 MPa. The estimated expanded relative uncertainty of the hydrogen solubility at given temperature and pressure is 3%, with a coverage factor of 2. The new results, together with data from the literature for hydrogen solubility in water and brine, are used to construct a simple model to predict hydrogen solubility in water and sodium chloride brines as a function of temperature, pressure and salt molality.
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doi_str_mv | 10.1016/j.fluid.2021.113025 |
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We report measurements of the solubility of hydrogen in pure water and in sodium chloride brine of molality 2.5 mol/kg at temperatures between 323.15 K and 423.15 K and at pressures up to about 40 MPa. The estimated expanded relative uncertainty of the hydrogen solubility at given temperature and pressure is 3%, with a coverage factor of 2. The new results, together with data from the literature for hydrogen solubility in water and brine, are used to construct a simple model to predict hydrogen solubility in water and sodium chloride brines as a function of temperature, pressure and salt molality.
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We report measurements of the solubility of hydrogen in pure water and in sodium chloride brine of molality 2.5 mol/kg at temperatures between 323.15 K and 423.15 K and at pressures up to about 40 MPa. The estimated expanded relative uncertainty of the hydrogen solubility at given temperature and pressure is 3%, with a coverage factor of 2. The new results, together with data from the literature for hydrogen solubility in water and brine, are used to construct a simple model to predict hydrogen solubility in water and sodium chloride brines as a function of temperature, pressure and salt molality.
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We report measurements of the solubility of hydrogen in pure water and in sodium chloride brine of molality 2.5 mol/kg at temperatures between 323.15 K and 423.15 K and at pressures up to about 40 MPa. The estimated expanded relative uncertainty of the hydrogen solubility at given temperature and pressure is 3%, with a coverage factor of 2. The new results, together with data from the literature for hydrogen solubility in water and brine, are used to construct a simple model to predict hydrogen solubility in water and sodium chloride brines as a function of temperature, pressure and salt molality.
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subjects | Brine Geological storage High pressure Hydrogen Sodium chloride Solubility |
title | Solubility of hydrogen in sodium chloride brine at high pressures |
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