화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO)
권호 14권 2호, p.3023
발표분야 환경
제목 Novel regenerable potassium-based dry sorbents for CO2 capture at low temperatures
초록 A potassium-based dry sorbent (KZrI) was developed for CO2 capture at a low temperature range between 50°C and 200°C. Absorption and regeneration properties of this novel regerenable potassium-based dry sorbent were measured in a fixed-bed reactor during multiple absorption/regerenation at 130-200°C). The total CO2 capture capacity absorption (91.6mg CO2/g sorbent) of the KZrI sorbent was maintained during the multiple CO2 absorption/regerenation cycles. The XRD patterns and FT-IR analyses of the sorbent after CO2 absorption showed the KHCO3 phase only except for the ZrO2 phase during regerenation, even at a low temperature (130°C). The KZrI sorbent developed in this study showed excellent characteristics in CO2 absorption and regerenation in that it satisfies the requirement of a large amount of CO2 absorption (91.6mg CO2/g sorbent) and the complete regerenation at a low temperature condition (1atm, 150°C) without deactivation.
저자 이수출1, 이수재1, 권용목1, 박용희1, 류청걸2, 김재창1
소속 1경북대, 2한국전력공사
키워드 CO2; absorption; ZrO2; K2CO3; KHCO3
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