COMBUSTION OF WASTE SLUDGE WITH OXYGEN AND CARBON DIOXIDE AT A CIRCULATING FLUIDIZED BED
Cold bed and pilot bed tests using circulating fluidized bed (CFB) were conducted to apply oxy-fuel technology for waste sludge combustion as a carbon capture and storage technology.In preliminary, the hydrodynamics of circulating fluidized bed was observed in the cold-bed setup to simulate the 30KWth CFB oxy-fuel pilot test bed, in which the superficial velocity for fast fluidization was determined over than 2.5m/s.The minimum fluidization velocity (Umf) was estimated as 0.104 m/s.In the pilot test, air and oxy-fuel combustion experiments for waste sludge and biomass were conducted with a flue-gas recirculation unit.The oxygen injection rate for oxy-fuel combustion was optimized from 21% to 25%.In 15% of flue-gas recirculation rate, carbon dioxide concentration in flue-gas was achieved over 90% of purity, which verified the possibility of oxy-fuel technology as CCS ready technology in a CFB combustion system for burning waste sludge and biomass.
Ha-Na Jang Hang-Seok Choi Seung-Ki Back Jin-Ho Sung Jeong-Hun Kim Yong-Chil Seo
Dept.of Environmental Engineering,Yonsei University,Wonju 220-710 National Institute of Environmental Research,Inchon 404-708
国际会议
The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)
北京
英文
643-648
2014-05-14（万方平台首次上网日期，不代表论文的发表时间）