| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.845 |
| 발표분야 |
[주제 4] 탄소중립(CCUS) |
| 제목 |
Optimization of indoor CO2 adsorption using KOH-modified activated carbon in a tubular apparatus: the effect of moisture |
| 초록 |
High indoor CO2 concentration (>1000 ppm) can negatively impact human health. In this work, a cost-effective CO2 adsorbent (KOH/AC: KOH-impregnated commercial activated carbon) was used in tubular apparatus for indoor CO2 adsorption as a further study of our previous indoor CO2 adsorption in chamber apparatus. Three factors (feed flow rate, concentration and humidity) were selected for optimization analysis to obtain optimal operating conditions for indoor CO2 adsorption. KOH-impregnation greatly changed the surface properties, thereby significantly improving the CO2 adsorption capacity, in despite of reducing BET surface area as a sacrifice. In-situ FTIR analysis confirmed that CO2 adsorption on AC was mainly physisorption while that on KOH/AC involved both chemisorption and physisorption. The chemisorption that occurred on KOH/AC was mainly controlled by the moisture. The equilibrium concentration increased with increasing CO2 concentration and feed flow rate, while the optimal relative humidity was obtained to be about 50%. |
| 저자 |
왕 슈앙, 이유리, 원유섭, 정세은, 김재영, 남형석, 박영철, 조성호
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| 소속 |
한국에너지기술(연) |
| 키워드 |
에너지 환경(Energy and Environment) |
| E-Mail |
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| 원문파일 |
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