The objectives of this study were to investigate the characteristics of desulfurization under different experimental conditions and the effects of desulfurization in a fluidized bed combuster installed with the screen. The experimental results were as follows ; First, as the height of fluidized bed combustor becomes higher, the concentrations of SO_2 mainly increased and sulfur retion of paper sludge was higher than that of natural limestone. Second, the desulfurization by natural limestone occurred at in-bed and the desulfurization by paper sludge occurred in the whole of fluidized bed combuster. In additiion, we identified calcium sulfate by the analysis of SEM and XRD. Third, screen at splash region increased sulfur retention 2∼5%, air velocity and anthracite fraction had a little effect on the sulfur retention.

• 조상원(창원기능대학 환경기술학과) | Sang-Won Cho (Department of Environmental Technology, Chang-Won Polytechnic College)
• 이재홍(창원기능대학 환경기술학과) | Jae-Hong Lee (Department of Environmental Technology, Chang-Won Polytechnic College)
• 조기철(부산대학교 환경공학과) | Gi-Cheul Jo (Department of Environmental Engineering, Pusan National University)
• 장상용(부산대학교 환경공학과) | Sang-Yong Jang (Department of Environmental Engineering, Pusan National University)
• 오광중(부산대학교 환경공학과) | Kwang-Joong Oh (Department of Environmental Engineering, Pusan National University)