摘要
生物质中含有比较活泼的钾氯等无机杂质,在生物质锅炉燃烧利用过程中会进入气相并在受热面表面形成沉积,阻碍受热面传热,引发受热面金属高温腐蚀,威胁燃烧设备正常运行.文章综述了国内外关于生物质锅炉受热面沉积和高温腐蚀的研究进展,阐明了沉积形成、高温腐蚀的机理、实际电厂中的情况以及控制方法.在生物质燃烧技术中,循环流化床燃烧技术具有一定的优势.生物质燃烧沉积和高温腐蚀问题以及减轻和解决的对策仍需要更加全面深入的研究.
Inorganic constituents like relatively active K and Cl in biomass are released during combustion. This may cause deposit formation on heating surface in boilers, which reduces heat transfer and bring about corrosion. These problems may eventually result in unscheduled plant shutdown in order to repair the system. This review article presents the investigations on deposition and high-temperature corrosion. Problems have been identified, mechanisms explained and solutions indicated. Among the technologies that can be applied to biomass combustion, fluidized beds are emerging as the best. Further research and development is needed to study critical problems of deposition and high-temperature corrosion.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2014年第3期189-198,共10页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(51336008)
国际合作基金资助项目(2011DFA61060)
十二五国家科技支撑计划资助项目(2012BAA09B01)
关键词
生物质
燃烧
沉积
高温腐蚀
炉排炉
流化床
biomass
combustion
deposition
high-temperature corrosion
grate furnace
fluidized bed
