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Effects of Operating Variables on Separation Rate and Separation Efficiency in Ash Separator for Solid Fuel Chemical Looping Combustor

고체연료 매체순환연소기를 위한 회재분리기에서 분리속도 및 분리효율에 미치는 조업변수들의 영향

  • Received : 2016.02.02
  • Accepted : 2016.04.30
  • Published : 2016.04.30

Abstract

To develop an ash separator for the solid fuel chemical looping combustion system, effects of operating variables such as solid injection nozzle velocity, diameter of solid injection nozzle, gap between solid injection line and vent line, vent line inside diameter, and solid intake height on solid separation rate and solid separation efficiency were measured and discussed using heavy and coarse particle and light and fine particles mixture as bed material in an acrylic fluidized bed apparatus. The solid separation rate increased as the solid injection nozzle velocity and the diameter of solid injection nozzle increased. However, the solid separation rate decreased as the gap between solid injection line and vent line, the vent line inside diameter, and the solid intake height increased. The solid separation efficiency was in inverse proportion to the solid separation rate. In this study, we could get high solid separation rate up to 2.39 kg/hr with 91.6% of solid separation efficiency.

Keywords

Chemical looping combustion;Solid fuel;Ash separator;Solid separation rate;Solid separation efficiency

References

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Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)