Korean Chemical Engineering Research

  • 제49권1호
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  • Pages.114-119
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  • 2011
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  • 0304-128X(pISSN)
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  • 2233-9558(eISSN)
한국화학공학회 (The Korean Institute of Chemical Engineers)
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저급탄의 열분해 및 촤-$CO_2$ 가스화 반응의 속도론적 연구

Kinetic Studies of Pyrolysis and Char-$CO_2$ Gasification on Low Rank Coals

  • 강석환 (고등기술연구원 플랜트엔지니어링센터) ;
  • 류재홍 (고등기술연구원 플랜트엔지니어링센터) ;
  • 박수남 (고등기술연구원 플랜트엔지니어링센터) ;
  • 변용수 (고등기술연구원 플랜트엔지니어링센터) ;
  • 서석정 (고등기술연구원 플랜트엔지니어링센터) ;
  • 윤용승 (고등기술연구원 플랜트엔지니어링센터) ;
  • 이진욱 (고등기술연구원 플랜트엔지니어링센터) ;
  • 김용전 (SK에너지(주) 기술원) ;
  • 김주회 (SK에너지(주) 기술원) ;
  • 박삼룡 (SK에너지(주) 기술원)
  • Kang, Suk-Hwan (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Ryu, Jae-Hong (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Park, Soo-Nam (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Byun, Yong-Soo (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Seo, Seok-Jung (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Yun, Yong-Seung (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Lee, Jin-Wook (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Kim, Yong-Jeon (SK energy Institute of Technology) ;
  • Kim, Joo-Hoe (SK energy Institute of Technology) ;
  • Park, Sam-Ryong (SK energy Institute of Technology)
  • 발행 : 2011.01.30
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초록

인도네시아 아역청탄인 ABK탄과 중국 갈탄(lignite)과 같은 저급탄에 대한 열분해와 촤-$CO_2$ 가스화반응에 대한 실험을 비등온의 승온 조건에서 열중량분석기(Thermogravimetric analysis, TGA)를 이용하여 수행하였다. 열분해 속도는 2단계, 1차의 열분해 모델(Kissinger 법의 변형)에 의해 잘 모사되었다. 촤의 $CO_2$ 가스화반응은 수축 핵 모델에 적용하여 초기의 활성화 에너지가 ABK탄은 189.1 kJ/mol, lignite는 260.5 kJ/mol의 값을 얻었으며, 수축 핵 모델에 의해 잘 모사되었다. 특히, 촤의 $CO_2$ 가스화반응에서 활성화 에너지는 무연탄의 결과와 유사하였으며, 다른 모델이나 석탄의 종류에 따라 큰 차이를 보였다.

Thermogravimetric analysis(TGA) was carried out for pyrolysis and char-$CO_2$ gasification of low rank Indonesian ABK coal and China lignite. The pyrolysis rate was successfully described by a two-step model adopting the modified Kissinger method. The shrinking core model, when applied to char-$CO_2$ gasification gave initial activation energy of 189.1 kJ/mol and 260.5 kJ/mol for the ABK coal and China lignite, respectively. Thus, the char-$CO_2$ gasification has been successfully simulated by the shrinking core model. In particular, the activation energy of char-$CO_2$ gasification calculated in this work is similar to the results on the anthracite coal, but considerable difference exists when other models or coal types are used.

키워드

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