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J. Korean Ceram. Soc. > Volume 51(6); 2014 > Article
Journal of the Korean Ceramic Society 2014;51(6): 575.
doi: https://doi.org/10.4191/kcers.2014.51.6.575
제철 산업부산물인 석회석 슬러지의 배연탈황 공정 적용에 관한 연구
서성관, 추용식, 심광보1, 이종규, 송훈, 윤영민
한국세라믹기술원 에너지환경소재본부
1한양대학교 신소재공학과
A Study on the Application Limestone Sludge to the Flue Gas Desulfurization Process
Sung Kwan Seo, Yong Sik Chu, Kwang Bo Shim1, Jong Kyu Lee, Hun Song, Young Min Yun
Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology
1Division of Materials Science and Engineering, Hanyang University
The flue gas desulfurization (FGD) process is currently the most effective process utilized to remove sulfur dioxide from stack gases of coal-fired plants. However, FGD systems use a lot of limestone as desulfurizing agent. In this study, we use limestone sludge, which is a by-product of the steel industry, to replace the desulfurizing agent of the FGD system. The limestone particle size is found to be unrelated to the desulfurizing rate; the gypsum purity, however, is related. Limestone sludge mixes with limestone slurry delivered at a constant rate in a desulfurizing agent with organic acid are expected to lead to a high desulfurization efficiency and high quality by-product (gypsum).
Key words: FGD systems, Desulfurizing agent, Limestone sludge, Organic acid, Gypsum
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