TY - JOUR
T1 - CO2-brine interfacial tension correlation based on the classical orthogonal polynomials
T2 - monovalent salts with common anion
AU - Vakili-Nezhaad, G. Reza
AU - Al Shaaili, Ahmed
AU - Yousefzadeh, Reza
AU - Kazemi, Alireza
AU - Al Ajmi, Adel
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to the Institute of Chemistry, Slovak Academy of Sciences 2024.
PY - 2024/2/12
Y1 - 2024/2/12
N2 - Accurate estimation of CO2-brine Interfacial Tension (IFT) is of great importance since it is required to model the residual/capillary trapping of CO2 in geological formations. In this paper, a novel correlation is proposed based on the classical orthogonal polynomials to estimate the CO2-brine IFT of monovalent salts with common anion. To do so, CO2-brine IFT samples composed of samples from the literature and experimentally measured values using an in-house high-pressure high-temperature IFT measurement device were collected within a wide range of temperatures, pressures, and salinities. The utilized brines included NaCl and KCl salts. Then, a predictive model was developed based on the Group Method of Data Handling approach as a function of temperature, pressure, and ionic strength. The proposed method was compared with four methods from the literature in terms of average absolute percentage error (AAPE), coefficient of determination R2, histograms of error, and percent error plots. Results showed the superiority of the proposed method over other methods with an AAPE of 9.85 and R2 of 0.719. Also, it was shown that the proposed method did not produce too large errors, contrary to other methods. Therefore, the proposed method can be used reliably as a tool for CO2-brine IFT estimation in CO2 storage projects.
AB - Accurate estimation of CO2-brine Interfacial Tension (IFT) is of great importance since it is required to model the residual/capillary trapping of CO2 in geological formations. In this paper, a novel correlation is proposed based on the classical orthogonal polynomials to estimate the CO2-brine IFT of monovalent salts with common anion. To do so, CO2-brine IFT samples composed of samples from the literature and experimentally measured values using an in-house high-pressure high-temperature IFT measurement device were collected within a wide range of temperatures, pressures, and salinities. The utilized brines included NaCl and KCl salts. Then, a predictive model was developed based on the Group Method of Data Handling approach as a function of temperature, pressure, and ionic strength. The proposed method was compared with four methods from the literature in terms of average absolute percentage error (AAPE), coefficient of determination R2, histograms of error, and percent error plots. Results showed the superiority of the proposed method over other methods with an AAPE of 9.85 and R2 of 0.719. Also, it was shown that the proposed method did not produce too large errors, contrary to other methods. Therefore, the proposed method can be used reliably as a tool for CO2-brine IFT estimation in CO2 storage projects.
KW - Brine
KW - CCUS
KW - Carbon dioxide
KW - Greenhouse gas
KW - IFT
KW - Orthogonal polynomial
UR - http://www.scopus.com/inward/record.url?scp=85184861133&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85184861133&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/1ea803d5-00ee-3157-8e36-fa4b543d84e5/
U2 - 10.1007/s11696-024-03321-9
DO - 10.1007/s11696-024-03321-9
M3 - Article
AN - SCOPUS:85184861133
SN - 0366-6352
VL - 78
SP - 3483
EP - 3493
JO - Chemical Papers
JF - Chemical Papers
IS - 6
ER -