Semi-Empirical Model to Estimate the Solubility of CO2 NaCl Brine in Conditions Representative of CO2 Sequestration

E. Mohammadian* (Corresponding Author), H. Hamidi, A. Azdarpour

*Corresponding author for this work

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Abstract

CO2 sequestration is considered as one of the most anticipated methods to mitigate CO2 concentration in the atmosphere. Solubility mechanism is one of the most important and sophisticated mechanisms by which CO2 is rendered immobile while it is being injected into aquifers. A semi-empirical, easy to use model was developed to calculate the solubility of CO2 in NaCl brines with thermodynamic conditions (pressure, temperature) and salinity gradients representative CO2 sequestration in the Malay basin. The model was compared to the previous more sophisticated models and a good consistency was found among the data obtained using the two models. A Sensitivity analysis was also conducted on the model to test its performance beyond its limits.

Original languageEnglish
Article number012013
Number of pages7
JournalIOP Conference Series: Materials Science and Engineering
Volume358
Early online date22 May 2018
DOIs
Publication statusPublished - 22 May 2018
Event3rd International Conference on Global Sustainability and Chemical Engineering - Putrajaya, Malaysia
Duration: 15 Feb 201716 Feb 2017

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