摘要
流化床燃烧/气化是生物质高效规模化能源利用的主要方式之一,由于生物质在较低温度下燃烧/气化时就容易发生床料烧结,影响了系统安全稳定运行,阻碍了能源利用效率的提高。系统地归纳了不同生物质在不同种类床料状态下燃烧/气化时烧结所需的特征温度,分析了生物质种类、碱金属含量、反应气氛与烧结温度之间的联系,结合相关研究,对生物质的烧结机理进行了分析和总结,对烧结温度预测方法和模型的优缺点进行了剖析和比较,对生物质燃烧/气化烧结机理进一步研究、预测模型的优化等提出了积极的建议,以期为相关研究的深入开展和生物质能规模化利用水平的提高提供有意义的参考。
Fluidized bed combustion/gasification is one of the main means of biomass utilization in a efficient and extending scale way. Due to the fact that biomass is easy to form sintering at relatively low temperature, so it affect the safe ＆ stable operation of system and the improvement of the utilization efficient of energy. This paper systematically conclude the combustion/gasification sintering characteristic temperature of different biomass with different bed materials, analyse the internal connection between biomass species, alkali metals content, reaction atmosphere and sintering temperature , combined with related research to analyze and summarize the mechanism of sintering ,and to analyze and compare theadvantages and disadvantages of the prediction models of sintering temperature, In the end, the paper put forward active suggestions for further research on combustion/ gasification sintering mechanism and control techniques, optimization of prediction models, hoping to provide meaningful reference for relative deep research and for the improving of the extending scale utilization level of biomass energy.
出处
《锅炉技术》
北大核心
2009年第4期76-80,共5页
Boiler Technology
关键词
生物质
碱金属
流化床
烧结
温度
biomass
alkali metals
fluidized bed
sintering
temperature
