| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.286 |
| 발표분야 |
분리기술(Separation Technology) |
| 제목 |
Mineralization of 14CO2 from Carbowaste Treatment using Glass-based Adsorbent |
| 초록 |
In the nuclear facility, gaseous radioactive materials are removed through the activated carbon filter in the HVAC system (Heat, Ventilation, & Air Conditioning) for environmental protection and safety of radiation workers. The spent activated carbon is replaced on a regular basis. The replaced spent activated carbon is treated through thermo-chemical treatment to remove radioactive materials. When activated carbon is treated with thermo-chemical processes, carbon is existing as a form of 14CO2. The 14CO2 should be adsorbed at room temperature under atmospheric pressure considering not only the stability of radioactive material but also preventing re-release of 14CO2. In this presentation, Sr2+ is incorporated to the glass structure and reacted with carbon dioxide in aqueous phase to mineralize CO2 into SrCO3. When Sr2+ ions are released from Sr-glass, Sr2+ ions and HCO3- react to adsorb CO2 in the form of SrCO3. The CO2 capacity of Sr-glass depends on the size of the adsorbent and ranging is from 2.5 mmol CO2/g to 4.2 mmol CO2/g. The CO2 loaded adsorbents were characterized by XRD (X-ray diffraction) and TGA-MS (Thermogravimetric Analysis/Mass Spectrometry). |
| 저자 |
김성준1, 이정현1, 양희철2, 이근영2, 김형주2
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| 소속 |
1고려대, 2한국원자력(연) |
| 키워드 |
CO2 분리; 흡착
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| E-Mail |
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| 원문파일 |
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