纪括,鄢晓忠,江焯烨,叶兆青,刘凯杰
JI Kuo,YAN Xiao-zhong,JIANG Zhuo-ye,YE Zhao-qing,LIU Kai-jie(Institute of Energy Source and Power Engineering

• 1:长沙理工大学能源与动力工程学院

摘要(Abstract)：

选取典型生物质及煤,基于冷态CFB实验系统进行二组分混合物流化特性实验研究。结果表明:单一生物质颗粒不能达到良好的流化效果,但流化效果可以通过在生物质中加入煤改善,随煤量的增加流化效果变好。生物质和煤二组分混合颗粒的比率小于6∶4时,可以达到较好的流化状态,混合颗粒的最小流化速度随生物质质量分数的增加而减小,料层高度对混合颗粒的流化特性影响不大。生物质与煤混合流化时的最小流化速度和计算预测值较为接近。
Selected meagre coal and typical biomass,such as tree branch and sawdust as research objects,with the aid of CFB boiler cold test system,researched their fluidization characteristics.The results show that,the fluidization properties of single biomass are poor,while add some meagre coal,the properties get better,and the more the better.When the mass ratio of biomass and meagre coal is 6 ∶4,the fluidized effect is the best.The minimium fluidization velocity of mixture decrease with the increase of biomass mass fraction,it's very similar to the predictive value.The material layer height has little effect on the fluidization characteristics of mixture.

关键词(KeyWords)： 流化床;生物质;贫煤颗粒;流化特性
fluidized bed;biomass;meagre coal;fluidization characteristics

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 纪括,鄢晓忠,江焯烨,叶兆青,刘凯杰
JI Kuo,YAN Xiao-zhong,JIANG Zhuo-ye,YE Zhao-qing,LIU Kai-jie(Institute of Energy Source and Power Engineering

DOI: 10.13226/j.issn.1006-6772.2013.02.002

参考文献(References)：

• [1]郭庆杰,张锴,张济宇,等.生物质和惰性颗粒二组分混合物的最小流化速度[J].煤炭转化,1999,22(1):92-95.
• [2]刘晓娟.国内外生物质能开发利用的研究进展[J].洁净煤技术,2008,14(4):7-9.
• [3]Czernik S,Bridgwater A V.Overview of applications of bi-omass fastpyrolysis oil[J].Energy&Fuels,2004,18(2):590-598.
• [4]Rao T R,Ram J V,Bheemarasetti.Minimum fluidizationvelocities of mixtures of biomass and sands[J].Energy,2001,26(6):633-644.
• [5]涂峰,张永奇.生物质焦与煤焦混合物的共流化实验研究[J].煤炭转化,2010,33(3):82-86.
• [6]徐春霞,徐振刚,步学朋,等.生物质气化及生物质与煤共气化技术的研发与应用[J].洁净煤技术,2008,14(2):37-40.
• [7]宋新朝,王志锋.生物质与煤混合颗粒流化特性的实验研究[J].煤炭转化,2005(1):74-77.
• [8]朱锡锋,陆强,郑冀鲁.木粉和稻壳流化特性[J].太阳能学报,2006,27(4):345-348.
• [9]王立群,宋旭.双组分颗粒系统流化特性的试验[J].江苏大学学报:自然科学版,2007,28(3):232-236.
• [10]Sjostrom K,Chen G,Yu Q,et al.Promoted Reaetivity ofCharinCo-Gasifieation of Biomassand Coal:Synergies inthe Thormoehemieal Proeess[J].Fuel,1999,78(10):1189-1194.