Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Desulfurization Efficiency of Limestone Sludge with Particle Size

석회석 슬러지의 입도제어에 따른 배연탈황효율에 관한 연구

  • Seo, Sung Kwan (Energy & Environmental Division, Korea Institute of Ceramic Eng. & Tech.) ;
  • Chu, Yong Sik (Energy & Environmental Division, Korea Institute of Ceramic Eng. & Tech.) ;
  • Shim, Kwang Bo (Division of Materials Science and Engineering, Hanyang University)
  • 서성관 (한국세라믹기술원 에너지환경소재본부) ;
  • 추용식 (한국세라믹기술원 에너지환경소재본부) ;
  • 심광보 (한양대학교 신소재공학과)
  • Received : 2015.07.09
  • Accepted : 2015.11.16
  • Published : 2015.12.30
Download PDF
⟨ Previous Next ⟩

Abstract

Flue gas desulfurization(FGD) is the technique to remove $SO_2$ gas from stack gases of coal-fired plants. Many researcher have studied to replace the desulfurizing agent because FGD systems use a lot of limestone and energy. In this study, we use the limestone sludge which is a by-product of steel industry in order to replace desulfurizing agent of FGD system by control the particle size of limestone sludge. And desulfurization performance test is implemented by investigating $SO_2$ gas removal properties upon the characteristic of the limestone sludge with various particle size.

배연탈황 기술은 화력발전소의 연소가스에서 발생하는 $SO_2$를 제거하는 기술이다. 발전소에서는 주로 석회석을 이용한 습식 배연탈황공정을 적용하고 있으나, 천연자원인 석회석의 고갈 및 높은 운전동력 소비 등의 문제로 석회석을 대체할 수 있는 흡수제 개발에 매진하고 있다. 따라서 본 연구에서는 제철소에서 발생하는 석회석 슬러지를 흡수제로 적용하기 위해 석회석 슬러지의 입도분포에 따른 탈황성능을 검토하고자 하였다. 탈황효율 검토방법으로는 입도에 따른 석회석 슬러지의 물리 화학적 특성 검토 및 $SO_2$가스제거시험 등을 시행하였다.

Keywords

References

  1. Frank, N. W., Miller, G. A., and Reed, D. A., 1987 : Operating and Testing a Combined $SO_2$ and NOx Removal Facility, Environmental Progress, 6, pp. 177-182. https://doi.org/10.1002/ep.670060329
  2. Tu. M. D., and Chang, S. G., 1987 : Chemistry of a Flue Gas Combined NOx and $SO_2$ scrubber Employing Ferrous Cysteine Additives, Environmental Progress, 6, pp. 51-56. https://doi.org/10.1002/ep.670060124
  3. Ukawa N., Takashina T., Shinoda N., and Shimizu T., 1993 : Effects of particle size distribution on limestone dissolution in wet FGD process applications, Environment Prog., 12, pp. 238-242. https://doi.org/10.1002/ep.670120314
  4. Chan. P. K., and Rochelle, G. T., 1982 : Limestone Dissolution: Effects of pH, $CO_2$, and Buffers Models by Mass Transfer, ACS Symposium Ser., 188, pp. 75-79.
  5. J. B. Frandsen, S. Kiil, and J. E. Johnsson, 2001 : Optimization of a wet FGD pilot plant using fine limestone and organic acids, Chemical Engineering Science, 56, pp. 3275-3287. https://doi.org/10.1016/S0009-2509(01)00010-0
  6. Won J. H., 1998 : Investigation of Limestone and Modeling of Semi-dry Absorption Tower for Flue Gas Desulfurization, Pohang Univerty of Science and Technology, Thesis (Master).
  7. Meserole, F. B., Glover, R L., and Stewart, D. A., 1982 : Studies of the Major Factors Affecting Magnesium Limestone Dissolution, ACS sympo. Ser., 188, pp. 99-111.
  8. Kim E. H., Lee J. C., Lee H. K., and Kim I. W., 1998 : Effect of Mixed Organic Acid Additives on $SO_2$ Absorption in Wet Flue Gas Desulfurization Process, Hwahak Konghak, 36, pp. 827-831.