Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A Review
Emission reduction in the main greenhouse gas, CO<sub>2</sub>, can be achieved efficiently via CO<sub>2</sub> geological storage and utilization (CCUS) methods such as the CO<sub>2</sub> enhanced oil/water/gas recovery technique, which is considered to be an impor...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/21/7374 |
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| author | Meiheriayi Mutailipu Qingnan Xue Tao Li Yande Yang Fusheng Xue |
| author_facet | Meiheriayi Mutailipu Qingnan Xue Tao Li Yande Yang Fusheng Xue |
| author_sort | Meiheriayi Mutailipu |
| collection | DOAJ |
| description | Emission reduction in the main greenhouse gas, CO<sub>2</sub>, can be achieved efficiently via CO<sub>2</sub> geological storage and utilization (CCUS) methods such as the CO<sub>2</sub> enhanced oil/water/gas recovery technique, which is considered to be an important strategic technology for the low-carbon development of China’s coal-based energy system. During the CCUS, the thermodynamic properties of the CO<sub>2</sub>–water–rock system, such as the interfacial tension (IFT) and wettability of the caprock, determine the injectability, sealing capacity, and safety of this scheme. Thus, researchers have been conducting laboratory experiments and modeling work on the interfacial tension between CO<sub>2</sub> and the water/brine, wettability of caprocks, the solubility of gas–liquid binary systems, and the pH of CO<sub>2</sub>-saturated brine under reservoir temperature and pressure conditions. In this study, the literature related to the thermodynamic properties of the CO<sub>2</sub>–water–rock system is reviewed, and the main findings of previous studies are listed and discussed thoroughly. It is concluded that limited research is available on the pH of gas-saturated aqueous solutions under CO<sub>2</sub> saline aquifer storage conditions, and less emphasis has been given to the wettability of the CO<sub>2</sub>–water/brine–rock system. Thus, further laboratory and modeling research on the wettability alternations of caprock in terms of molecular dynamics is required to simulate this phenomenon at the molecular level. Moreover, simplified IFT and solubility prediction models with thermodynamic significance and high integrity need to be developed. Furthermore, interaction mechanisms coupling with multi-factors associated with the gas–liquid–solid interface properties and the dissolution and acidification process need to be explored in future work. |
| first_indexed | 2024-03-11T11:30:41Z |
| format | Article |
| id | doaj.art-61a3d891c29f44ec8a11039dd9a735ff |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T11:30:41Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-61a3d891c29f44ec8a11039dd9a735ff2023-11-10T15:02:20ZengMDPI AGEnergies1996-10732023-10-011621737410.3390/en16217374Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A ReviewMeiheriayi Mutailipu0Qingnan Xue1Tao Li2Yande Yang3Fusheng Xue4Engineering Research Center of Northwest Energy Carbon Neutrality, Ministry of Education, Xinjiang University, Urumqi 830017, ChinaSchool of Electrical Engineering, Xinjiang University, Urumqi 830017, ChinaSchool of Electrical Engineering, Xinjiang University, Urumqi 830017, ChinaSchool of Electrical Engineering, Xinjiang University, Urumqi 830017, ChinaSchool of Electrical Engineering, Xinjiang University, Urumqi 830017, ChinaEmission reduction in the main greenhouse gas, CO<sub>2</sub>, can be achieved efficiently via CO<sub>2</sub> geological storage and utilization (CCUS) methods such as the CO<sub>2</sub> enhanced oil/water/gas recovery technique, which is considered to be an important strategic technology for the low-carbon development of China’s coal-based energy system. During the CCUS, the thermodynamic properties of the CO<sub>2</sub>–water–rock system, such as the interfacial tension (IFT) and wettability of the caprock, determine the injectability, sealing capacity, and safety of this scheme. Thus, researchers have been conducting laboratory experiments and modeling work on the interfacial tension between CO<sub>2</sub> and the water/brine, wettability of caprocks, the solubility of gas–liquid binary systems, and the pH of CO<sub>2</sub>-saturated brine under reservoir temperature and pressure conditions. In this study, the literature related to the thermodynamic properties of the CO<sub>2</sub>–water–rock system is reviewed, and the main findings of previous studies are listed and discussed thoroughly. It is concluded that limited research is available on the pH of gas-saturated aqueous solutions under CO<sub>2</sub> saline aquifer storage conditions, and less emphasis has been given to the wettability of the CO<sub>2</sub>–water/brine–rock system. Thus, further laboratory and modeling research on the wettability alternations of caprock in terms of molecular dynamics is required to simulate this phenomenon at the molecular level. Moreover, simplified IFT and solubility prediction models with thermodynamic significance and high integrity need to be developed. Furthermore, interaction mechanisms coupling with multi-factors associated with the gas–liquid–solid interface properties and the dissolution and acidification process need to be explored in future work.https://www.mdpi.com/1996-1073/16/21/7374CO<sub>2</sub> geological storage and utilizationthermodynamic propertiesCO<sub>2</sub> trapping mechanismspore-scale multi-phase flow |
| spellingShingle | Meiheriayi Mutailipu Qingnan Xue Tao Li Yande Yang Fusheng Xue Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A Review Energies CO<sub>2</sub> geological storage and utilization thermodynamic properties CO<sub>2</sub> trapping mechanisms pore-scale multi-phase flow |
| title | Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A Review |
| title_full | Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A Review |
| title_fullStr | Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A Review |
| title_full_unstemmed | Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A Review |
| title_short | Thermodynamic Properties of a Gas–Liquid–Solid System during the CO<sub>2</sub> Geological Storage and Utilization Process: A Review |
| title_sort | thermodynamic properties of a gas liquid solid system during the co sub 2 sub geological storage and utilization process a review |
| topic | CO<sub>2</sub> geological storage and utilization thermodynamic properties CO<sub>2</sub> trapping mechanisms pore-scale multi-phase flow |
| url | https://www.mdpi.com/1996-1073/16/21/7374 |
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