화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2016년 봄 (04/27 ~ 04/29, 부산 BEXCO)
권호 22권 1호, p.394
발표분야 분리기술
제목 Development of K2CO3-based dry sorbents using SnO2 and LiAlO2 for post-combustion CO2 capture
초록 Gamma alumina (γ-Al2O3) is commonly used as a support or an additive material to design the ideal alkali metal-based sorbent. However, potassium-based sorbent using γ-Al2O3 was deactivated due to the formation of by-product such as KAl(CO3)(OH)2 during CO2 sorption. To overcome this problem, development of novel potassium-based sorbent is required using new supports or additive materials instead of γ-Al2O3. In this study, potassium-based dry sorbents using new supports or additive materials such as SnO2 and LiAlO2 were developed and investigated at a low temperature range between 60oC and 200oC. And the structure changes of the potassium-based sorbents were investigated by power X-ray diffraction. These sorbents show high CO2 capture capacities (89-94mg CO2/g sorbent). In addition, these high CO2 capture capacities are maintained during multiple cycles even at a low regeneration temperature of 200oC.
저자 조민선1, 이수출1, 채호진1, 이중범2, 김재창1
소속 1경북대, 2한전 전력(연)
키워드 흡수; 흡착; 온실가스 분리
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