期刊文献+

小麦秸秆流态化燃烧粘结特性实验研究 被引量:4

EXPERIMENTAL STUDIES ON AGGLOMERATION CHARACTERISTICS OF WHEAT STALK COMBUSTION IN FLUIDIZED BED
原文传递
导出
摘要 在5 kW鼓泡流化床实验装置上,利用床层压差和温度的变化作为判断床层粘结失流的依据,以小麦秸秆成型颗粒作为研究对象,进行了燃烧温度、床料粒径和流化风速对失流时间影响的实验研究。实验结果表明:失流时间随着燃烧温度上升而缩短;流化风速增大,失流时间增长;床料粒径对失流时间影响不明显。对粘结物进行了SEM/EDX和XRF分析,分析结果表明,Si和K元素形成的熔融物对床料的粘结起重要的作用。 Wheat stalk was combusted in a 5 kW fluidized bed combustor to investigate the formation of bed agglomeration. Bed defluidization was determined by on-line measured bed temperatures and pressures. Tests under different combustion conditions were made to study the influence of temperature, gas velocity and bed particle size on agglomeration. Scanning electron microscopy/energy-dispersive X-ray spectrometry (SEM/EDX) and X-ray fuorescence (XRF) were applied to identify agglomerates. The temperature is the most important facts on the agglomeration. The defluidization time is decrease with the temperatures increase; the higher gas velocity can extend the defluidization time; the bed particle size has no influence on the defluidization time. The SEM/EDX and XRF analysis shows that K and Si play the most important roles in bed defluidization by forming low melting point compounds.
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2010年第3期511-514,共4页 Journal of Engineering Thermophysics
基金 国家自然科学基金资助项目(No.50706055)
关键词 秸秆 流态化 粘结 失流 straw fuidization agglomeration defluidization
  • 相关文献

参考文献7

  • 1Manzoori A R, Agarwal P K. Agglomeration and Defluidization under Simulated Circulating Fluidized-Bed Combustion Conditions [J]. Fuel, 1994, 73:563-568.
  • 2Lin C L, Wey M Y. The Effect of Mineral Compositions of Waste and Operating Conditions on Particle Agglomeration/Defluidization During Incineration [J]. Fuel, 2004, 83(17/18): 2335-2343.
  • 3LIN W G, Dam-Johansen K, Frandsen F. Agglomeration in Bio-fuel Fired Fluidized Bed Combustors [J]. Chemical Engineering Journal, 2003, 96(1-3): 171-185.
  • 4Steenari B M, Lindqvist O. High-Temperature Reactions of Straw Ash and the Anti-Sintering Additives Kaolin and Dolomite [J]. Biomass & Bioenergy, 1998, 14(1): 67-76.
  • 5李诗媛,矫维红,吕清刚.不同床料流化床生物质燃烧粘结机理研究[J].工程热物理学报,2009,30(5):869-872. 被引量:9
  • 6Nijenhuis J, Korbee R, Lensselink J, et al. A Method for Agglomeration Detection and Control in Full-Scale Biomass Fired Fluidized Beds [J]. Chemical Engineering Science, 2007, 62(1/2): 644-654.
  • 7Ohman M, Nordin A. A New Method for Quantification of Fluidized Bed Agglomeration Tendencies: A Sensitivity Analysis [J]. Energy &: Fuels, 1998, 12(1): 90-94.

二级参考文献5

  • 1Yuan Z H, Wu C Z, Ma L L, et al. Utilization Theory and Technology of Biomass Energy. Beijing: Chemical Industry Press, 2005.
  • 2DENLER A, GHALY A E. Agglomeration of Silica Sand in a Fluidized Bed Gasifier Operating on Wheat Straw. Biomass and Bioenergy, 1993, 4(1): 35-47.
  • 3Steenari B M, Lindqvist O. High-Temperature Reaction of Straw Ash and the Anti-Sintering Additives Kaolin and Dolomite. Biomass and Bioenergy, 1998, 14(1): 67-76.
  • 4Fernandez Llorente M J, Escalada Cuadrado R, Murillo Laplaza J M, et al. Combustion in Bubbling Fluidised Bed with Bed Material of Limestone to Reduce the Biomass Ash Agglomeration and Sintering. Fuel, 2006, 85:2081-2092.
  • 5别如山,杨励丹,周定.焚烧含盐有机废液添加剂对流化床床料烧结的影响[J].化工学报,2002,53(12):1253-1259. 被引量:17

共引文献8

同被引文献40

  • 1李寒旭,二宫善彦,董众兵,张明旭.利用FactSage热力学软件预测还原性气氛下煤灰熔融行为特征的研究[J].Chinese Journal of Chemical Engineering,2006,14(6):784-789. 被引量:34
  • 2蒲舸,张力,辛明道.王草的热解与燃烧特性实验研究[J].中国电机工程学报,2006,26(11):65-69. 被引量:51
  • 3叶贻杰,陈汉平,王贤华,杨海平,赵向富,张世红.生物质流化床燃烧过程中的结渣特性[J].可再生能源,2007,25(3):50-53. 被引量:15
  • 4郎芳,马晓茜,王晶晶.秸秆灰特性的研究[J].可再生能源,2007,25(4):25-28. 被引量:30
  • 5E BRUS,M OHMAN,A NORDIN.Mechanisms of bed agglomeration during fluidized-bed combustion of biomass fuels[J]. Energy and Fuels, 2005,19 (3) : 825 -832.
  • 6ZEVENHOVEN-ONDERWATER M,BACKMAN R, SKRIFVARS B J,et al. The ash chemistry in fluidised bed gasification of biomass fuels. Part I: Predicting the chemistry of melting ashes and ash-bed material interaction [J]. Fuel,2001,80(10):1489-1502.
  • 7F SCALA,R CHIRONE.An SEM/EDX study of bed ag- glomerates formed during fluidized bed combustion of three biomass fuels [J]. Biomass and Bioenergy, 2008,32 (3) : 252-266.
  • 8M J F LLORENTE,J M MURILLO LAPLAZA,R ES- CALADA CUADRADO,et al. Ash behaviour of lignocellulosic biomass in bubbling fluidised bed combustion [J]. Fuel, 2006,85 (9) : 1157-1165.
  • 9XIONG S J,BURVALL J,ORBERG H,et al.Slagging characteristics during combustion of corn stovers with and without kaolin and calcite [J]. Energy & Fuels, 2008,22 (5) : 3465-3470.
  • 10STEENARI B M,LINDQVIST O.High-temperature reaction of straw ash and the anti-sintering additives kaolin and dolomite [J]. Biomass and Bioenergy, 1998,14 ( 1 ) : 67-76.

引证文献4

二级引证文献11

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部