유동층 연소로에서 유, 무연탄 혼합연소시 탈황에 관한 연구 -천연석회석을 이용한 황산화물 제어-

• 영문명: A study on Desuifurization by Anthracite-Bituminous coal blend combustion in a fluidized bed combustor -A desulfurization using natural limestone-
• 발행기관: 한국환경보건학회
• 저자명: 조상원 민병철 정종현 전영화 김대영 정덕영
• 간행물 정보: 『1. 한국환경보건학회지』제23권 제3호, 102~108쪽, 전체 7쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1997.09.30

영문 초록

It has been studied that SO$_2$ removal efficiency of anthracite-bituminous coal blend combustion in a fludized bed coal combustor. The objectives of this study were to investigate SO$_2$ removal characteristics of coal blend combustion with Ca/S, anthracite fraction, bed temperature, and limestone size. The experimental results were presented as follows First, the effect of the desulfurization by the dia size of limestone was great and SO$_2$ removal efficiency was highest in limestone dia 631 $\mu$m. Second, as air velocity increased, the desulfurization rate decreased a little. But the difference of the desulfurization rate according to air velocity was not too large. As the height of fluidized bed combustor increased regardless of air velocity, SO$_2$ concentration tends to increase largely. Third, as Ca/S mole ratio incresed, SO$_2$ desulfurization rate incresed rapidly up to Ca/S mole ratio 3 while the desulfurization rates did not increse too largely in the range of more than the level. Forth, the bed temperature had a great effect on the desulfurization rate and the desulfurization rate tended to increase slightly as anthracite fraction increased.

키워드

Desulfurization Fluidezed bed combustor Limestone Anthracite-bituminous coal blend combustion