PARTITIONING BEHAVIOR OF TRACE ELEMENTS IN A PILOT-SCALE CIRCULATING FLUIDIZED BED COMBUSTOR WITH AN NOVEL IN-BED HEAT EXCHANGER

摘要：

　　Coal combustion was carried out on a 2.5 MWth pilot circulating fluldized bed (CFB) with an In-Bed Heat Exchanger (IBHX) at Southeast University in China.Partitioning behavior of trace elements was evaluated by sampling the solid streams using inductively coupled plasma mass spectroscopy (ICP-MS).Results show that partitioning behaviors of trace elements were different among solid streams and trace elements were mainly recovered in fly ash.Relative enrichment factors increase with the decrease of particle size, except Mn, Cr, and Ba.The enrichment of trace elements of particles slipt from IBHX was influenced by IBHX averaged superficial velocity.

关键词： CFB Fly ash Trace element size distribution

作者: Lunbo Duan Haicheng Sun Yuanqiang Duan Changsui Zhao

作者单位: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,School of Energy and Environment,Southeast University,Nanjing 210096,China

会议类型: 国际会议

会议名称: The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)

会议地点: 北京

会议语种:英文

页码: 601-606

在线出版日期: 2014-05-14（万方平台首次上网日期，不代表论文的发表时间）