화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2014년 가을 (10/22 ~ 10/24, 대전 DCC)
권호 20권 2호, p.2331
발표분야 환경
제목 Effects of calcination atmosphere and temperature on CO2 capture properties of MgO-based sorbents promoted with Na2CO3 and NaNO3
초록 To investigate effects of calcination atmosphere and temperature on CO2 capture properties of MgO sorbents, new MgO-based sorbents were prepared by impregnation of MgO with Na2CO3 (30 wt%) and NaNO3 (10 wt%). The CO2 capture capacities of the MgO-based sorbents were investigated in the fixed-bed reactor during multiple cycles at warm temperatures (capture at 300 ℃ and regeneration at 450 ℃). The CO2 capture capacities of the MgO-based sorbents calcined under nitrogen atmosphere were maintained about 90~100 mg CO2/g sorbent regardless of calcination temperature. However, the CO2 capture capacities of the MgO-based sorbents calcined under air atmosphere decreased with increasing calcination temperature. We will discuss characteristics and mechanism of MgO-based sorbents promoted with Na2CO3 and NaNO3 using XRD, TPD and TG in detail.
저자 박명곤1, 이수출1, 권용목1, 김민주1, 정석용1, 박용기2, 서휘민2, 김재창1
소속 1경북대, 2한국화학(연)
키워드 CO2; Capture; Calcination; MgO; Na2CO3; NaNO3
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