| Title |
Simulation Model for Dissolution of Liquid CO2 Discharged at Intermediate Depth of Ocean |
| Keywords |
Global warming ; 지구온난화 ; Carbon dioxide ; 이산화탄소 ; Surface concentration ; 표면농도 ; Solubility ; 용해도 ; Salinity ; 염분 |
| Abstract |
Carbon dioxide ocean disposal is one of the promising options to reduce carbon dioxide concentration in the atmosphere because the ocean has vast capacity for carbon dioxide sequestration. However, the dissolution rate of liquid carbon dioxide in seawater must be known in advance in order to estimate the amount of carbon dioxide sequestration in the ocean. Therefore, in the present study, calculations of the solubility, the surface concentration and the dissolution behavior of carbon dioxide when liquid carbon dioxide is released at 1,000 m and 1,500m in depth are performed. The results show that the droplet is completely dissolved below 500m in depth if the carbon dioxide droplet is released both at 1,000m in depth with the initial droplet diameter of 0.011m or less and at 1,500m in depth with the diameter of 0.016 or less. Also, the surface concentration of carbon dioxide droplet with the hydrate film is about 50% of carbon dioxide solubility at 1,500m in depth and about 60% of carbon dioxide solubility at 1,000m in depth. |