The Korean text of this paper can be translated into multiple languages on the website of http://jksee.or.kr through Google Translator.
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 |
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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