Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
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Study on the Free CaO Analysis of Coal Ash in the Domestic Circulating Fluidized Bed Combustion using ethylene glycol method

에틸렌글리콜법을 활용한 국내 순환유동층보일러 석탄회의 Free CaO 평가 연구

  • Seo, Jun-Hyung (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Baek, Chul-Seoung (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Kim, Young-Jin (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Choi, Moon-Kwan (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Cho, Kye-Hong (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Ahn, Ji-Whan (Carbon Resource Recycling Appropriate Technology Center, Korea Institute of Geoscience and Mineral Resources)
  • 서준형 (한국석회석신소재연구소 연구개발실) ;
  • 백철승 (한국석회석신소재연구소 연구개발실) ;
  • 김영진 (한국석회석신소재연구소 연구개발실) ;
  • 최문관 (한국석회석신소재연구소 연구개발실) ;
  • 조계홍 (한국석회석신소재연구소 연구개발실) ;
  • 안지환 (한국지질자원연구원 탄소광물화적정기술사업단)
  • Received : 2017.02.01
  • Accepted : 2017.02.17
  • Published : 2017.03.31
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Abstract

This study was carried out to physicochemical properties and free CaO contents of coal ash in domestic circulating fludized bed combustion power plant using ethylene glycol method. Results of physicochemical properties, there are many differences in CaO contents for the region position in CFBC plant. The reason, It is considered to be reflected that regulation of exhaust concentration for oxides of sulfur and other operation characteristics of region position in CFBC plant. Free CaO contents are 1.96 ~ 10.78% of fly ash and 0.07~4.24 % of bottom ash, fly ash is higher than in the bottom ash. besides CaO contents of raw materials, particle distribution have a lot of influence Free CaO contents.

에틸렌글리콜법을 활용하여 국내 순환유동층보일러형 발전소에서 발생되는 석탄회의 물리화학적 특성 및 Free CaO 평가를 수행하였다. 물리화학적 특성결과, 각 발전사마다 많은 CaO 함량 차이를 나타내었는데, 이는 황산화물 배출농도 규제 차이 및 보일러 제작사가 다른 발전소의 운전특성이 복합적으로 반영된 것으로 판단된다. Free CaO의 함량은, 비산재는 1.96 ~ 10.78 %, 바닥재는 0.07 ~ 4.24%로 비산재가 바닥재보다 높게 나타났으며, 원시료의 CaO 함량 이외에 입도 분포에 따라서도 크게 변화되는 것으로 확인되었다.

Keywords

References

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