Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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A Review of Desulfurization Technology using Limestone in Circulating Fluidized Bed Boiler Type Power Plant

유동층보일러형 화력발전소의 석회석 활용 탈황기술 연구동향

  • Baek, Chul-Seoung (R&D Department, Korea Institute of Limestone and Advanced Materials) ;
  • Seo, Jun-Hoyung (R&D Department, Korea Institute of Limestone and Advanced Materials) ;
  • Ahn, Ji-Whan (Korea Institute of Geoscience and Mineral Resources) ;
  • Han, Chon (Department of Chemical Engineering, Kwangwoon University) ;
  • Cho, Kae-Hong (R&D Department, Korea Institute of Limestone and Advanced Materials)
  • Received : 2015.07.17
  • Accepted : 2015.08.24
  • Published : 2015.10.30
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Abstract

This study investigated that status of domestic and international furnace desulfurization and desulfurization characteristics of limestone for fluidized bed use depending on the technology for CFBC one of the CCPs. Limestone-based desulfurizing agent is one of the superior elements which are optimal at around $850-950^{\circ}C$ on high temperature desulfurization. And effectiveness of desulfurization process can be determined by the desulfurization experiment method such as diffusion reaction of the diaphragm of the absorber surface, the size of the particles, the pores of the quantity, size and structure. And, desulfurization efficiency depending on geological and crystallographic properties and calcination process of limestone needs additional research in the future.

청정석탄발전기술 중 하나인 순환유동층보일러(CFBC) 기술의 고도화에 따라 국내외 로내탈황 기술개발 현황과 국내외 유동층보일러용 석회석의 탈황특성 연구현황을 조사하였다. 석회석계 탈황제는 고온탈황특성이 우수한 원소 중 하나로 $850-950^{\circ}C$ 내외에서 최적의 탈황특성을 가지고 있다. 그리고, 탈황시험방법에 따라 흡수제 표면의 격막의 확산반응, 입자의 크기, 기공의 수량, 크기 및 구조에 의한 탈황공정의 효율성을 결정할 수 있다. 2015년 이후 대형 순환유동층형발전소의 본격적인 가동에 따라 석회석의 광상학적, 결정학적 특성 및 소성특성과 연계된 추가적인 연구가 필요한 것으로 사료된다.

Keywords

References

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