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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Effects of Temperature, Pressure, and Gas Residence Time on Methane Combustion Characteristics of Oxygen Carrier Particle in a Pressurized Fluidized Bed Reactor

가압 유동층 반응기에서 산소공여입자의 메탄 연소 특성에 미치는 온도, 압력 및 기체체류시간의 영향

  • 류호정 (한국에너지기술연구원) ;
  • 박상수 (한국에너지기술연구원) ;
  • 문종호 (한국에너지기술연구원) ;
  • 최원길 (한국에너지기술연구원) ;
  • 이영우 (충남대학교 녹색에너지기술전문대학원)
  • Received : 2012.04.13
  • Accepted : 2012.04.27
  • Published : 2012.04.30
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Abstract

Effects of temperature, pressure, and gas residence time on methane combustion characteristics of mass produced oxygen carrier particle (OCN706-1100) were investigated in a pressurized fluidized bed reactor using methane and air as reactants for reduction and oxidation, respectively. The oxygen carrier showed high fuel conversion, high $CO_2$ selectivity, and low CO concentration at reduction condition and very low NO emission at oxidation condition. Moreover OCN706-1100 particle showed good regeneration ability during successive reduction-oxidation cyclic tests up to the 10th cycle. Fuel conversion and $CO_2$ selectivity decreased and CO emission increased as temperature increased. These results can be explained by trend of calculated equilibrium CO concentration. However, $CO_2$ selectivity increased as pressure increased and fuel conversion increased as gas residence time increased.

Keywords

References

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