全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

床料对生物质流化床燃烧黏结特性的影响

DOI: 10.13334/j.0258-8013.pcsee.2014.26.010, PP. 4515-4520

Keywords: 生物质,流化床,黏结,床料,控制

Full-Text   Cite this paper   Add to My Lib

Abstract:

在5kW鼓泡流化床实验装置上,以循环流化床燃煤灰渣、煤矸石灰渣作为床料,进行了麦秆成型燃料燃烧黏结特性研究。实验表明:900℃工况下,相对于石英砂床料,以上两种床料均能够有效地控制生物质流化床燃烧过程中的黏结现象。结合SEM-EDX分析结果与多相平衡反应计算分析,应用流化床燃煤炉渣、煤矸石灰渣为床料控制麦秆流化床燃烧黏结现象的机理相似。相对于石英砂,两种床料中均含有较高含量的硫元素、较高含量的铝元素,在麦秆燃烧过程中,床料中的铝元素、硫元素会与麦秆灰中高含量的钾元素形成高熔点的物质,有利于减轻麦秆流化床燃烧黏结现象;另外,黏结物中相对高含量的碱土金属元素使得黏结物的熔点提高,有利于控制麦秆流化床燃烧黏结现象。

References

[1]  陈亮,苏毅,陈祎,等.两段式秸秆气化炉中当量比对气化特性的影响[J].中国电机工程学报,2009,29(29):102-107.Chen Liang,Su Yi,Chen Yi,et al.Effect of equivalence ratio on gasification characteristics in a rice straw two-stage gasifier[J].Proceedings of the CSEE,2009,29(29):102-107(in Chinese).
[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.Pu Ge,Zhang Li,Xin Mingdao.Experimental study on pyrolysis and combustion characteristic of king grass[J].Proceedings of the CSEE,2006,26(11):65-69(in Chinese).
[3]  滕海鹏,李诗媛,吕清刚.小麦秸秆流态化燃烧黏结特性实验研究[J].工程热物理学报,2010,31(3):311-314.Teng Haipeng,Li Shiyuan,Lü Qinggang.Experimental study on the characteristics of agglomeration and defluidization of biomass combustion in fluidized bed[J].Journal of Engineering Thermophysics,2010,31(3):311-314(in Chinese).
[4]  沈国章,鲁许鳌,钟振成,等.流化床燃烧麦秸床料团聚结渣研究[J].中国电机工程学报.2011,31(23):14-19.Shen Guozhang,Lu Xuao,Zhong Zhencheng,et al.Research on bed agglomeration formed during fluidized bed combustion of wheat straw[J].Proceedings of the CSEE,2011,31(23):14-19(in Chinese).
[5]  Öhman M,Nordin A,Skrifvars B J.Bed agglomeration characteristics during ?uidized bed combustion of biomass fuels[J].Energy Fuels,2000,14(1):169-178.
[6]  Malte B,Lin Weigang,John N.Agglomeration in fluidized beds at high temperatures:Mechanisms,detection and prevention[J].Progress in Energy and Combustion Science,2008,34(5):633-666.
[7]  宁新宇,李诗媛,吕清刚,等.秸秆类生物质与石煤在流化床中的混烧与黏结机理[J].中国电机工程学报.2008,28(29):105-110.Ning Xinyu,Li Shiyuan,Lü Qinggang,et al.Study on co-firing and agglomeration mechanism of stalk biomass and stone coal in fluidized bed[J].Proceedings of the CSEE,2008,28(29):105-110(in Chinese).
[8]  李诗媛,矫维红,吕清刚.不同床料流化床生物质燃烧黏结机理研究[J].工程热物理学报,2010,30(5):869-872.Li Shiyuan,Jiao Weihong,Lü Qinggang.Mechanisms of reducing bed agglomeration during fluidized-bed combustion of bio-fuels pellet with four kinds of bed material[J].Journal of Engineering Thermophysics,2010,30(5):869-872(in Chinese).
[9]  Fernandez Llorente M J , Escalada Cuadrado R,Murillo Laplaza J M,et al.Combustion in bubbling fluidized bed with bed material of limestone to reduce the biomass ash agglomeration and sintering[J].Fuel,2006,85(14-15):2081-2092.
[10]  别如山,杨励丹,周定.焚烧有机废液添加剂对流化床床料烧结的影响[J].化工学报,2002,3(12):1253-1259.Bie RuShan,Yang Lidan,Zhou Ding.Influence of additives on bed sintering in fluidized bed incinerator treating waste salty liquid[J].Journal of Chemical Industry and Engineering,2002,3(12):1253-1259(in Chinese).
[11]  Olofsson G,Ye Zhicheng,Bjerle I.Bed agglomeration problems in fluidized-bed biomass combustion,Industrial & Engineering Chmeistry Research,2002,41(12):2888-2894.
[12]  滕海鹏.生物质流态化燃烧黏结失流特性研究[D].北京:中国科学院工程热物理研究所,2010.Teng Haipeng.Experimental study on the characteristics of agglomeration and defluidization of biomass combustion in fluidized bed[D].Beijing:Institute of Engineering Thermophysics,Chinese Academy of Sciences,2010(in Chinese).
[13]  LI Hanxu,Yoshihiko Ninomiya,Dong Zhongbing,et al.Application of the FactSage to predict the ash melting behavior in reducing conditions[J].Chinese Journal of Chemical Engeering,2006,14(6):784-789.
[14]  Öhman M,Nordin A.The role of kaolin in prevention of bed agglomeration during fluidized bed combustion of biomass fuels[J].Energy and Fuels,2000,14(3):618-624.
[15]  Werther J,Saenger M,Hartge E U,et al.Combustion of agricultural residues[J].Progress in Energy Combustion Science,2000,26(1):1-27.
[16]  Vuthaluru H B,Zhang D K.Effect of Ca-and Mg-bearing minerals on particle agglomeration defluidisation during fluidised-bed combustion of a South Australian lignite[J].Fuel Processing Technology,2001,69(1):13-27.
[17]  Vuthaluru H B,Zhang D K.Remediation of ash problems in fluidised-bed combustors[J].Fuel,2001,80(4):583-598.
[18]  Stelios A,Peter A J,Kim D J.Simultaneous thermal analysis (STA) on ash from high alkali biomass[J].Energy and Fuels,2004,18(4):1066-1076.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133