화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.24, No.1, 63-69, March, 2018
DOI10.7464/ksct.2018.24.1.063  Export Citation
기포유동층에서 케미컬루핑 연소시스템을 위한 최적 산소전달입자 선정
Selection of the Best Oxygen Carrier for Chemical Looping Combustion in a Bubbling Fluidized Bed Reactor
김하나, 김정환, 윤주영, 이도연, 백점인1, 류호정†
  • 한국에너지기술연구원, 대전광역시 유성구 가정로 152
  • 1한국전력공사 전력연구원, 대전광역시 유성구 문지로 105
Hana Kim, Jung-Hwan Kim, Joo-Young Yoon, Doyeon Lee, Jeom-In Baek1, and Ho-Jung Ryu†
  • Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
  • 1Korea Electric Power Corporation (KEPCO) Research Institute, 105 Munji-ro, Yuseong-gu, Daejeon 34056, Korea
E-mail:
초록
순산소 연소 기술 중 CO2 회수 비용 절감 효과가 가장 우수한 케미컬루핑연소(chemical looping combustion, CLC) 기술의 핵심인 산소전달입자의 선정을 위해 환원반응 특성 및 물리화학적 특성에 대한 연구를 진행하였다. 세 종류의 산소전달입자 (SDN70, N018-R2, N016-R4)를 대상으로 기포유동층 반응기에서 환원반응기체의 농도 및 환원 반응 온도 변화에 따른 산소 전달입자의 연료전화율(fuel conversion)과 CO2 선택도(CO2 selectivity)를 측정 및 비교 분석하였다. 또한 산소전달입자의 마 모손실 정도 및 입자의 표면 특성을 분석하기 위해 내마모도(Attrition Index, AI) 및 BET surface area를 측정하였다. 결과적으로 세 종류의 산소전달입자 모두 케미컬루핑연소 시스템에 활용하기 적합함을 확인하였으며, 가장 우수한 입자는 N016-R4로 판단되었다.
The reduction reaction characteristics and physicochemical properties were studied for the selection of oxygen carrier, which is the core of the chemical looping combustion (CLC) technology. Fuel conversion and CO2 selectivity of oxygen carrier according to the concentration of reducing gas and the reduction temperature using three kinds of oxygen carrier (SDN70, N018-R2, N016-R4) were measured and compared. In addition, Attrition Index (AI) and BET surface area were measured to analyze the attrition resistance and the surface characteristics of the oxygen carrier. As a result, it was confirmed that all three kinds of oxygen carrier were suitable for use in chemical roofing combustion system, and the best particle was determined to be N016-R4.
Keywords:Chemical looping;Oxygen carrier;Fuel conversion;CO2 selectivity;Bubbling fluidized bed
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