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| 고온 이산화탄소 포집을 위한 기능성 활성탄의 흡착특성 |
| 최성우, 이철규 |
| 계명대학교 환경과학과 |
| Adsorption Characteristics of Functionalized Activated Carbon for High Temperature CO2 Capture |
| Sung-Woo Choi, Cheol-Gyu Lee |
| Department of Environmental Science and Engineering, Keimyung University |
| Corresponding author |
Sung-Woo Choi ,Tel: 053-580-5245, Fax: 053-580-6286, Email: swchoi@kmu.ac.kr
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Received: November 6, 2014; Revised: March 23, 2015; Accepted: March 31, 2015. Published online: March 31, 2015. |
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| ABSTRACT |
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Activated carbon impregnated with polyethyleneimine (PEI) was evaluated as a functionalized adsorbent for CO2 capture. The CO2 adsorption characteristics of the adsorbents was undertaken using GC/TCD, BET surface area and FT-IR. A series of adsorbents were synthesized by impregnating 10, 30, 50 wt% of PEI on activated carbons and were investigated CO2 adsorption capacity at high and low adsorption temperature. The CO2 adsorption capacity at 20℃ and 100℃ was as follow: AC > PEI(10)- AC > PEI(30)-AC > PEI(50)-AC at 20℃ and PEI(10)-AC > PEI(30)-AC > PEI(50)-AC > AC at 100℃. Adsorption capacities of amine functionalized AC was lager than virgin AC at high temperature due to chemisorption by amino-group content. From the results, the PEI(10)-AC showed one of the most promising adsorbents for CO2 capture from flue gas at high temperature. |
| Key Words:
Polyethyleneimine, CO2 Adsorption, Activated Carbon, Impregnation |
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