Abstract
The objective of the present study is set as to clarify the dissolution phenomena of liquid CO2 in the high pressure corresponding to deep-ocean, and CO2 concentration profile near the water-liquid CO2 interface when CO2 hydrate formation. First of all, visualization unit is constructed which can be observed from all angles. Second, mass transfer coefficient and the solubility of CO2 with time were calculated via volume change of gas CO2, liquid CO2 and dissolution water by using image processing. As a result, CO2 mass transfer coefficient decreased with time, and solubility of CO2 increased with time. Finally, CO2 solubility calculated by the present study was compared to a previous study, and its indicated good agreement with the previous value of hydrate formation condition which the temperature under 10°C.
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