EFFECT OF COAL ADDITION ON DEPOSITION IN A BIOMASS FIRED CIRCULATING FLUIDIZED-BED BOILER

摘要：

　　To investigate the effects of coal blending on the migration of alkali metals during biomass combustion, experiments were performed in a CFB biomass boiler.The deposits were derived from high-temperature superheater and were analyzed using scanning electron microscope (SEM), X-ray powder diffraction (XRD) and other analytical approaches.The results indicate that coal addition significantly enhanced the formation of potassium sulfate and potassium aluminosilicates, reduced or removed potassium chloride in the deposits, thus reducing the corrosion risks.Overall, the results from this work suggest that coal can be an effective additive to minimize the possible ash deposition and corrosion problems in CFB biomass boiler.Coal addition can significantly enhance the operation of a fluidized bed fired with biomass.

作者: Chen Chen Chunjiang Yu Zifeng Tang Leiyun Zeng Zhongyang Luo

作者单位: State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,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: 661-666

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）