| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 봄 (04/21 ~ 04/23, 부산 BEXCO) |
| 권호 |
27권 1호, p.641 |
| 발표분야 |
에너지 환경 |
| 제목 |
Development of a cost-effective CO2 adsorbent using KOH-modified rice husk-based activated carbon for indoor air purification |
| 초록 |
A cost-effective CO2 adsorbent (DKOH-AC) was developed by impregnating KOH on rice husk-based KOH activated carbon (KOH-AC). KOH can be successfully loaded on the surface of KOH-AC. The DKOH-AC showed a considerable BET surface area (206 m2/g) and smaller pore size (0.739 nm) than those of KOH-AC. KOH-AC quickly reached adsorption equilibrium (about 50 min) whereas DKOH-AC had a longer adsorption time (over 400 min), which resulted in an increase in the adsorption capacity. Higher adsorption capacity (2.73 mmol/g for 15% CO2, 4.17 mmol/g for 500 ppm CO2) was obtained with DKOH-AC as compared to that with KOH-AC. In addition, the DKOH-AC showed higher heat of adsorption (16.6 KJ/mol) and gas selectivity than these of KOH-AC. The regeneration condition was found to be 150 ℃ at which both KOH-AC and DKOH-AC exhibited good regeneration performance. |
| 저자 |
왕 슈앙, 김하나, 원유섭, 김재영, 조성호, 박영철, 남형석, 이유리, 이동호, 이창근
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| 소속 |
한국에너지기술(연) |
| 키워드 |
환경 |
| E-Mail |
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| 원문파일 |
초록 보기 |
