화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2011년 가을 (11/02 ~ 11/04, 경원대학교)
권호 15권 2호
발표분야 환경.에너지
제목 Effects of textural properties on CO2 absorption property of CaO-based sorbents
초록 Effects of textural properties of the CaO-based sorbents were investigated in the presence of 9 vol.% H2O and 10 vol.% CO2 at 600C. The CaO-based sorbents were prepared by calcining various precursors such asCaCO3(cCaO),Ca(OH)2(hCaO), Ca(Ac)2(aCaO) andCaO(nCaO, Alrich) at 850C. The cCaO and hCaO sorbents exhibit the excellent CO2 capture capacity of about 400(absorption CO2 mg/g absorbent) as compared with aCaO and nCaO sorbents. It was known by BET that the pore sizes of the CaO-based sorbents were followed by: cCaO>hCaO>aCaO>nCaO. On the other hand, the aCaO sorbent showed low CO2 capture capacity of about 200, in spite of high surface area. From these results, it was concluded that pore size of the sorbent plays on important role in the CO2 cpature capacity due to the effect of CO2 diffusion.
저자 임은지, 김재창, 이수출, 정석용, 조민선, 박용희
소속 경북대
키워드 Carbon dioxide capture; CaO; Sorbent; Absorption
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