화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.50, No.6, 994-1001, December, 2012
Export Citation
SEWGS 공정용 CO2 흡수제들의 흡수능력에 미치는 조업변수들의 영향
Effects of Operating Variables on Sorption Capacity of CO2 Absorbents for SEWGS Process
류호정1, †, 김효성1, 2, 이승용1, 이동호1, 김재창2
  • 1한국에너지기술연구원 온실가스연구단, 305-343 대전시 유성구 장동 71-2
  • 2경북대학교 화학공학과, 702-701 대구시 북구 산격동 1370
Ho-Jung Ryu1, †, Hyo-Sung Kim1, 2, Seung-Yong Lee1, Dong-Ho Lee1, and Jae-Chang Kim2
  • 1Greenhouse Gas Center, Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Korea
  • 2Department of Chemical Engineering, Kyungpook National University, 1370 Sangyeok-dong, Buk-gu, Daegu 702-701, Korea
E-mail:
초록
SEWGS 공정에 사용하기 위해 개발된 두 종류의 CO2 흡수제(PKM1-SU, P4-600)에 대해 가압 회분식 유동층 반응기를 사용하여 각 흡수제의 반응성에 미치는 조업변수의 영향을 측정 및 해석하였다. PKM1-SU 입자와 P4-600 입자 모두 흡수-재생 반복횟수가 증가함에 따라 흡수능이 감소하는 경향을 나타내었으며 CO2 흡수능력 측면에서는 PKM1-SU 입자가 우수한 성능을 나타내었으나 재생반응온도와 재생반응속도 측면에서는 P4-600 입자가 우수한 것으로 나타났다. PKM1-SU 입자는 스팀농도가 증가함에 따라 CO2 흡수능이 증가하였으나 P4-600 입자의 경우 스팀농도 5%에서 10%로 증가함에 따라 CO2 흡수능이 증가한 후 거의 일정한 경향을 나타내었다. 두 흡수제 모두 최종 재생온도가 증가함에 따라 CO2 흡수능이 증가하는 경향을 나타내었으며 PKM1-SU 입자의 경우 15 bar 이상에서는 압력이 증가함에 따라 CO2 흡수능력이 급격히 증가하는 경향을 나타내었다.
The Effects of operating variables on reactivity of two CO2 absorbents (PKM1-SU and P4-600) for SEWGS process were investigated in a pressurized fluidized bed reactor. For both CO2 absorbents, CO2 sorption capacity decreased as the number of absorption-regeneration cycles increased. PKM1-SU absorbent represented higher CO2 sorption capacity than that of P4-600 absorbent. However, P4-600 absorbent represented better performance than PKM1-SU absorbent from the view points of regeneration temperature and regeneration rate. For PKM1-SU absorbent, CO2 sorption capacity increased as the steam concentration increased. However, CO2 sorption capacity increased initially as the steam concentration increased from 5% to 10%, but maintained thereafter for P4-600 absorbent. For both CO2 absorbents, CO2 sorption capacity increased as the final regeneration temperature increased. For PKM1-SU absorbent, CO2 sorption capacity increased as the pressure increased and the increment tendency was drastic at higher pressure than 15 bar.
Keywords:Precombustion CO2 Capture;SEWGS;CO2 Absorbent;Sorption Capacity
  1. James R, “Clean Coal technology Status: CO2 Capture and Storage,” Technology Briefing for Colorado Rural Electric Association, EPRI (2007)
  2. Ryu HJ, Trans. of the Korean Hydrogen and New Energy Society., 20(2), 168 (2009)
  3. Ryu HJ, Hyun JS, Kim H, Hwang TS, Trans. of the Korean Hydrogen and New Energy Society., 22(4), 465 (2011)
  4. Maurstad O, “An Overview of Coal Based Integrated Gasification Combined Cycle (IGCC) Technology,” MIT report, Publication No. LFEE 2005-002 WP, 1-43 (2008)
  5. IEA report, “Prospects for Hydrogen and Fuel Cells,” IEA Books, 49 (2005)
  6. Lee JB, Eom TH, Choi DH, Park KW, Ryu J, Baek JI, Ryu CK, Ryu HJ, “Study on Hybrid Materials of WGS Cataylst and CO2 Sorbent for SEWGS Process,” International Symposium on Low Carbon & Renewable Energy Technology, Lotte Hotel, Jeju, Korea, 372 (2010)
  7. Lee JM, Min YJ, Lee KB, Jeon SG, Na JG, Ryu HJ, Langmuir, 26(24), 18788 (2010)
  8. Eric D, Stemphane W, Paul C, Rudd B, “Sour SEWGS Applicaion in IGCC,” TCCS-6, Trondheim (2011)
  9. Beavis R, “CACHET: Outline of Project Objectives and Base Case,” CACHET Public Workshop, IFP, Lyon (2008)
  10. Ryu HJ, Lee SY, Park YC, Jo SH, “Selection of WGS Catalyst and CO2 Absorbent for Pre-combustion CO2 Capture,” Fifth International Conference on Clean Coal Technologies, May 8-12, Zaragoza, Spain, available in http://www.cct2011.org (2011)
  11. Ryu HJ, Yi CK, Park YC, Jo SH, “SEWGS Reaction with Mixture of WGS Catalyst and CO2 Absorbent in a Fluidized Bed Reactor,” The 13th Korea-Japan Symposium on Catalysis, May 23-25, Seogwipo, Jeju Island, Korea, 230 (2011)