화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.20, No.2, 179-188, June, 2014
Export Citation
제올라이트 3A, 4A, 5A, 13X 펠렛의 탈착 압력에 따른 이산화탄소 흡.탈착 파과특성
Effect of Desorption Pressure on Adsorption and Desorprtion Breakthrough Behaviors of Carbon Dioxide with Zeolite 3A, 4A, 5A, and 13X Pellets
심중보, 노영경1, 박영철2, 김현욱2, 류호정2, 조철희†, 문종호2, †
  • 충남대학교 에너지과학기술 대학원･에너지과학기술학과, 305-764 대전광역시 유성구 궁동 220
  • 1연세대학교 화공생명공학과, 120-749 서울특별시 서대문구 연세로 50
  • 2한국에너지기술연구원, 305-343 대전광역시 유성구 가정로 152
Jungbo Sim, Young-Kyoung Noh1, Young Cheol Park2, Hyunuk Kim2, Ho-Jung Ryu2, Churl-Hee Cho†, and Jong-Ho Moon2, †
  • The Department of Energy Science and Technology, Graduate School of Energy Science and Technology, 220 Gung-dong, yuseong-gu, Daejeon 305-764, Korea
  • 1Graduate School of Chemical & Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749 Korea
  • 2Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Korea
E-mail:,
초록
본 연구에서는 고정탑 반응기(높이 30 cm, 내경 1 cm)에 서로 다른 4종류의 제올라이트(zeolite) 시료를 충전하여, 탈착압력이 CO2 흡착파과 및 탈착파과 거동에 미치는 영향을 연구하였다. 흡착제로는 상용물질인 제올라이트 3A, 4A, 5A, 13X 펠렛(pellet)을 사용하였다. 연속조작(cyclic operation)실험은 흡착-탈착 순으로 5회 반복하여 실험하였으며, 흡착 및 탈착 시간은 각각 80분이었다. 탈착압력이 연속조작거동에 미치는 영향을 살펴보기 위해 탈착 압력(혹은 재생 압력)을 진공(0 bar)에서 3 bar까지 변경하며 실험을 진행하였다. 흡착압력(3 bar), 온도(293 K), 농도(CO2 : N2 = 10 : 90 vol%)와 유량(400 ccm) 조건은 고정하였다. 파과시간(breakthrough time), 포화시간(saturation time), 재생시간(regeneration time), 흡착량 그리고 탑 내 온도변화 등을 측정하였다. 상기 변수 실험을 통하여 연소 후 CO2 포집에 적합한 흡착제 및 운전조건을 찾고자 하였다.
The effect of desorption pressure on CO2 / N2 breakthrough behaviors for 4 different adsorbents was studied at a fixed bed. Zeolite 3A, 4A, 5A, and 13X pellets were used as adsorbents. Cyclic operations were executed with varying desorption pressure from vacuum (0 bar) to 3 bar while other conditions such as adsorption step pressure (3 bar), temperature (293 K), composition (CO2 : N2 = 10 : 90 vol%) and flow rate (400 ccm) were fixed at constant values. Each adsorption and desorption step was set as 80 min, which totaled up to 160 min per a cycle. 5 cycles with adsorption and desorption steps were run overall. After the experiment, breakthrough time, saturation time, and adsorption amount were measured and compared in order to find an optimum adsorbent and a proper operating condition for a post combustion CO2 capture process.
Keywords:Carbon dioxide;Zeolite;Fixed bed;Breakthrough;Adsorption;Desorption
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