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Syngas Combustion Characteristics of Oxygen Carrier Particle in a Pressurized Fluidized Bed Reactor

가압 유동층 반응기에서 산소공여입자의 합성가스 연소 특성

  • 박상수 (충남대학교 녹색에너지기술전문대학원) ;
  • 이동호 (한국에너지기술연구원) ;
  • 최원길 (한국에너지기술연구원) ;
  • 류호정 (한국에너지기술연구원) ;
  • 이영우 (충남대학교 녹색에너지기술전문대학원)
  • Received : 2012.01.02
  • Accepted : 2012.02.24
  • Published : 2012.02.28

Abstract

Syngas combustion characteristics of mass produced oxygen carrier particle (OCN706-1100) were investigated in a pressurized fluidized bed reactor using simulated syngas 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 conditions and no NO emission at oxidation conditions. 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 with temperature. However, fuel conversion and $CO_2$ selectivity increased and CO emission decreased as pressure and gas residence time increased.

Keywords

Chemical-looping combustion;Oxygen carrier;$CO_2$;Syngas;Pressurized fluidized bed

Acknowledgement

Supported by : 한국에너지기술연구원

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