화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.18, No.2, 220-227, March, 2001
DOI10.1007/BF02698463  Export Citation
CO2 Recovery from Flue Gas by PSA Process using Activated Carbon
Byung-Ki Na†, Kee-Kahb Koo1, Hee-Moon Eum2, Hwaung Lee, and Hyung Keun Song
  • Clean Technology Research Center, KIST, P.O.Box 131, Cheongryang, Seoul 130-650, Korea
  • 1Department of Chemical Rngineering, Sogang University, Seoul 121-742, Korea
  • 2Power Generation Research Lab, KEPRI, Yusong-ku, Taejon 305-380, Korea
E-mail:
An experimental study was performed for the recovery of CO2 from flue gas of the electric power plant by pressure swing adsorption process. Activated carbon was used as an adsorbent. The equilibrium adsorption isotherms of pure component and breakthrough curves of their mixture (CO2 :N2 :O2=17 : 79 : 4 vol%) were measured. Pressure equalization step and product purge step were added to basic 4-step PSA for the recovery of strong adsorbates. Through investigation of the effects of each step and total feed rate, highly concentrated CO2 could be obtained by increasing the adsorption time, product purge time, and evacuation time simultaneously with full pressure-equalization. Based on the basic results, the 3-bed, 8-step PSA cycle with the pressure equalization and product purge step was organized. Maximum product purity of CO2 was 99.8% and recovery was 34%.
Keywords:CO2;PSA;Adsorption;Recovery;Activated Carbon
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