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A Study on Two-interconnected Fluidized Beds System for Selective Solid Circulation  

Ryu, Ho-Jung (Greenhouse Gas Research Center, Korea Institute of Energy Research)
Jang, Myoung-Su (Greenhouse Gas Research Center, Korea Institute of Energy Research)
Kim, Hong-Ki (Greenhouse Gas Research Center, Korea Institute of Energy Research)
Lee, Dong-Kyu (Department of Industrial Engineering Chemistry, Chungbuk National University)
Publication Information
Korean Chemical Engineering Research / v.47, no.3, 2009 , pp. 337-343 More about this Journal
Abstract
To apply to novel two-interconnected fluidized beds system for selective solid circulation, a solid separator and a solid circulation system were developed. The solid separation rate increased as the gas velocity through the solid injection nozzle, solid height, and diameter of solid injection nozzle increased. However, the effect of the fluidization velocity was negligible. Coarse($212{\sim}300{\mu}m$) and fine($63{\sim}106{\mu}m$) particles were separated using the solid separator and the solid separation rate was ranged from 66 to 453 g/min. The solid circulation rate increased as the gas velocity through the solid injection nozzle, solid height, and the number of solid intake holes increased. However, the effect of the fluidization velocity was negligible. Fine particle was circulated using the solid circulation system and the solid circulation rate was ranged from 65 to 390 g/min. We also proposed two interconnenced fluidized beds system for selective solid circulation equipped with the developed solid separator and the solid circulation system. Long-term operation of continuous solid circulation up to 20 hours has been performed to check feasibility of stable operation. The pressure drop profiles in two beds and the solid separation rate were maintained steadily, and therefore, we could conclude that solid circulation was smooth and stable.
Keywords
Solid Separation; Solid Circulation; Fluidized Bed; SEWGS;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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