| 초록 |
Research and development was conducted with increasing concern about global warming to reduce the emissions of greenhouse gases, especially CO2. Thus, reducing the emission of CO2 has become a very important issue around the whole globe recently. However, it is difficult to reduce the amount of CO2 emission dramatically. So, methods to capture and store CO2 in deep sea or underground for long time are suggested. Among these methods, the sequestration of CO2 in coal-beds has been studied by many researchers. In addition, experimental data of the mutual solubilities of CO2 and water are important to evaluate the possibility of CO2 sequestration in geological formations. In this work, solubilities of water in the carbon dioxide rich phase were obtained by an indirect measurement method at the temperatures ranging from 283K to 312K and pressures of 8.1, 10.1 and 20.1 MPa. The experimental data are compared with literature data at each pressure. The measured results were also calculated and analyzed using the CPA EoS, considering the association of water molecules and the solvation effect between water and CO2. |
