한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제22권2호
  • /
  • Pages.213-222
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  • 2011
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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열중량분석기에서 석탄과 산소공여입자의 반응 특성

Reaction Characteristics of Coal and Oxygen Carrier Particle in a Thermogravimetric Analyzer

  • 투고 : 2011.02.15
  • 심사 : 2011.04.22
  • 발행 : 2011.04.30
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초록

To check adaptability of low ash coal(hyper coal) to chemical looping combustion, reaction characteristics of two coals (Roto and Hyper coal) with two oxygen carriers (NiO/bentonite, OCN703-1100) have been investigated in a thermogravimetric analyzer. Hyper coal represented low combustion rate and high ignition temperature, high volatile content and high devolatilization rate, and therefore, showed worse oxygen transfer during successive 10 cycle reduction-oxidation test than Roto coal. Finally we selected Roto coal as the candidate coal for chemical looping combustion. For Roto coal, OCN703-1100 particle showed better oxygen transfer than NiO/bentonite particle. During 10 cycle reduction oxidation test, change of the extent of oxidation (Wo) was negligible and we could conclude that both oxygen carriers have sufficient regeneration ability.

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참고문헌

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