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Application of a Thermodynamic Model to Predict the Solubility of CO? in Pure H?O and in Salt Solutions and Corrosion Prediction of Carbon Steel Under Supercritical Conditions

Picture for Application of a Thermodynamic Model to Predict the Solubility of CO? in Pure H?O and in Salt Soluti
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Product Number: 51315-5983-SG
ISBN: 5983 2015 CP
Author: Sridhar Arumugam
Publication Date: 2015
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CO2 sequestration requires the prediction of pressure-temperature-composition (P-T-X) data for CO2 and water mixtures at significantly high pressures and temperatures and these applications most commonly deal with subsurface water containing dissolved salts. In this study a thermodynamic model was used to predict the solubility of supercritical CO2 in pure water and in the presence of chloride salts in the aqueous phase (i.e. brine solutions) at temperatures ranging up to 373 K and at pressures ranging up to 600 bar. The concentrations of the corrosion species in the aqueous phase was predicted and are compared with experimental data available from open literature. A mechanistic model is presented to predict the internal corrosion of carbon steel under such operating conditions of temperature pressure and salt concentrations along with investigating the effects of corrosion product formation.

CO2 sequestration requires the prediction of pressure-temperature-composition (P-T-X) data for CO2 and water mixtures at significantly high pressures and temperatures and these applications most commonly deal with subsurface water containing dissolved salts. In this study a thermodynamic model was used to predict the solubility of supercritical CO2 in pure water and in the presence of chloride salts in the aqueous phase (i.e. brine solutions) at temperatures ranging up to 373 K and at pressures ranging up to 600 bar. The concentrations of the corrosion species in the aqueous phase was predicted and are compared with experimental data available from open literature. A mechanistic model is presented to predict the internal corrosion of carbon steel under such operating conditions of temperature pressure and salt concentrations along with investigating the effects of corrosion product formation.

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