| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.3087 |
| 발표분야 |
환경 |
| 제목 |
CO2 absorption and regerenation of dry Potassium-Based Sorbent for CO2 capture |
| 초록 |
Dry potassium-based sorbent was by impregnation with potassium carbonate on support such as Al2O3. The CO2 capture capacity and regerenation property of this sorbent was measured in the presence of H2O in a fixed bed reactor, during multiple cycle. When both the CO2 absorption and regeneration were considered as a one-cycle process, the CO2 capture capacities of sorbent was observed as a function of the cycle number at various regeneration temperatures such as 200, 290, and 350°C. The XRD pattern of the fresh sorbent was calcined at 300°C under nitrogen, showed the K2CO3 and KAl(CO3)2(OH)2 phases. The CO2 capture capacity of the sorbent gradually decreased with the cycle number at a regeneration temperature of 200°C. It was found that KAl(CO3)2(OH)2 was not converted into the original phase like K2CO3 at low regerenation temperature (200°C). However it was maintained during the multiple CO2 absorption/regerenation at a regerenation temperature over 290°C. It was found that KAl(CO3)2(OH)2 phase was completely converted into the K2CO3 phase during regerenation at higher temperature than 290 °C. |
| 저자 |
권용목1, 이수출1, 이수재1, 박용희1, 류청걸2, 김재창1
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| 소속 |
1경북대, 2한국전력공사 |
| 키워드 |
CO2; absorption; K2CO3:KHCO3; KAl(CO3)2(OH)2
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| E-Mail |
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| 원문파일 |
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