화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU))
권호 20권 2호
발표분야 환경에너지_포스터
제목 CO2 sorption and regeneration properties of alkali metal-based dry sorbents using SnO2 for post-combustion CO2 capture
초록 Alkali metal-based sorbents using TiO2 or γ-Al2O3 have disadvantages in terms of thermal stability and cyclic CO2 capture of the sorbent. To overcome these problems, novel alkali metal-based sorbents were developed in this study. The new alkali metal-based sorbents were prepared by impregnation of SnO2 as a support with K2CO3 or Na2CO3, and investigated at a low temperature range between 60oC and 200oC. The sodium-based sorbent using SnO2 shows high CO2 capture capacity (113.7mg CO2/g sorbent). However, the CO2 capture capacities of the sodium-based sorbent using SnO2 were decreased by increasing calcination temperatures. On the other hand, the potassium-based sorbent using has good thermal stability, regardless of calcination temperature, as well as high CO2 capture capacity (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, 이수출2, 채호진1, 임은지1, 이중범3, 김재창1
소속 1경북대, 2차세대에너지기술(연), 3한전
키워드 CO2; K2CO3; KHCO3; SnO2; Thermal stability
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