| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2649 |
| 발표분야 |
환경 |
| 제목 |
Development of new regenerable potassium-based α-alumina sorbent for post-combustion CO2 capture |
| 초록 |
A new regenerable potassium-based sorbent, which was prepared by impregnation of α-Al2O3 with 30 wt% K2CO3, was developed for CO2 sorption and regeneration at low temperature (50~130oC). This sorbent showed high CO2 sorption capacity and excellent regeneration properties during multiple tests, unlike the potassium-based γ-Al2O3 sorbent which was deactivated by the formation of by-product, KAl(CO3)(OH)2, during CO2 sorption. The excellent regeneration properties of the new regenerable sorbent are due to the formation of a KHCO3 phase without by-products during CO2 sorption, resulting from the structure effect of alumina. From these results, it is concluded that α-Al2O3 is one of the most useful materials for designing the ideal potassium-based sorbent for CO2 sorption and regeneration in the temperature range between 50oC and 130oC. |
| 저자 |
조민선1, 김재창1, 이수출1, 정석용1, 이중범2, 류청걸2
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| 소속 |
1경북대, 2한국전력(연) |
| 키워드 |
CO2; alumina; K2CO3; KHCO3
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| E-Mail |
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| 원문파일 |
초록 보기 |
