| Abstract |
| This study aimed to accurately quantify the concentration of carbon dioxide (CO2) dissolved in water as inorganic carbon using a sealed analytical device. It further sought to verify the method’s capability to measure inorganic carbon concentrations across a broad range by examining CO2 dissolution behavior in both conventional CO2-dissolved water and nanobubble-infused CO2-dissolved water. The concentrations of inorganic carbon in these two types of water are determined using a modified sealed chamber based on the original experimental setup. The results indicated that after one hour of CO2 injection, no further dissolution occurred beyond a concentration of 1,249 mg/L, corresponding to a dissolution efficiency of 29% for the conventional dissolved water. In contrast, the nanobubble-infused water showed a dissolution efficiency of 47.4% at a concentration of 5,488 mg/L after three hours of injection. In conclusion, the study confirmed that this method enables the universal quantification of CO2 dissolved in water as inorganic carbon and holds strong potential for advancing efficient CO2 reduction and CCUS (Carbon Capture, Utilization & Storage) technologies. |
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| Key Words |
| CCUS, Carbon Dioxide, Inorganic Carbon, Sealed Chamber, 이산화탄소, 무기탄소, 밀폐형 장치 |
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