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J4  2011, Vol. 45 Issue (11): 2020-2025    DOI: 10.3785/j.issn.1008-973X.2011.11.022
能源工程     
贵州无烟煤的燃烧特性和NOx排放特性试验
陈瑶姬,周志军,周宁,杨卫娟,刘建忠,周俊虎,岑可法
浙江大学 能源洁净利用国家重点实验室,浙江 杭州 310027
The experimental study of combustion and NOx emission
characteristics of Guizhou anthracite
CHEN Yao-ji, ZHOU Zhi-jun, ZHOU Ning, YANG Wei-juan,
LIU Jian-zhong, ZHOU Jun-hu, CEN Ke-fa
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, Zhejiang Province, China
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摘要:

为了探究氧量及温度对贵州无烟煤的燃烧特性及NOx排放特性的影响,选用粒径为58~75 μm的贵州无烟煤,利用一维沉降炉进行相关试验.研究结果发现,贵州无烟煤NOx排放量随着氧气量的增加而增加,当过量空气系数大于0.9后增幅趋缓;随着燃烧温度的上升,NOx生成量增加,在达到1 400 ℃后,由于生成大量热力型NOx,NOx排放量呈指数型大幅增长;氧量主要影响贵州无烟煤在燃烧过程的0.2 s之前以及2.0 s之后的NOx生成量,对于0.2~2.0 s的主燃烧区域的NOx生成量影响不大.研究认为氧量是影响贵州无烟煤NOx排放及燃烧的最主要因素,燃料型NOx对温度并不十分敏感.

Abstract:

Influence of oxygen concentration and temperature on combustion and NOx emission characteristics of Guizhou anthracite was investigated in a subsiding furnace, adopting pulverized coal of 58-75 μm. Discharge amount of NOx increases with increasing of oxygen concentration, and the rate of increase decreases when excess air ratio is above 0.9; the raise of temperature increases discharge amount of NOx, and above 1 400 ℃, the rate of increase becomes bigger due to large amount of thermal NOx formation; NOx formation before 0.2 s and after 2.0 s of combustion is sensitive to oxygen concentration, which has less influence to NOx formation in main combustion section (0.2-2.0 s). Oxygen concentration is the key factor to NOx emission and combustion of Guizhou anthracite, but fuel-NOx is not sensitive to temperature.

出版日期: 2011-12-08
:  TK 16  
基金资助:

国家“863”高技术研究发展计划资助项目(2008AA05Z304).

通讯作者: 周志军(1969-),男,副教授,     E-mail: zhouzj@zju.edu.cn
作者简介: 陈瑶姬(1970-),女,博士生,从事无烟煤低氮燃烧研究.E-mail: 02rncyj@zju.edu.cn
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引用本文:

陈瑶姬,周志军,周宁,杨卫娟,刘建忠,周俊虎,岑可法. 贵州无烟煤的燃烧特性和NOx排放特性试验[J]. J4, 2011, 45(11): 2020-2025.

CHEN Yao-ji, ZHOU Zhi-jun, ZHOU Ning, YANG Wei-juan, LIU Jian-zhong, ZHOU Jun-hu. The experimental study of combustion and NOx emission
characteristics of Guizhou anthracite. J4, 2011, 45(11): 2020-2025.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.11.022        https://www.zjujournals.com/eng/CN/Y2011/V45/I11/2020

[1] 杨震,庄恩如,张建文,等.大型电站锅炉采用切向燃烧方式燃用无烟煤的研究[J].动力工程,2006,26(6):765-772.
YANG Zhen, ZHUANG Enru, ZHANG Jianwen, et al. Research on tangential firing of anthracite in large capacity station boilers [J]. Journal of Power Engineering, 2006, 26(6): 765-772.
[2] 付兴方,焦颖.浅析我国稀缺品种煤炭资源的可持续利用[J].地质技术经济管理,1999,(21): 5-6.
FU Xingfang, JIAO Ying. Analysis of sustainable utilization of Chinas rare kinds of coal resources [J]. Gelological Technoeconomic Management, 1999, (21): 5-6.
[3] 方立军,高正阳,阎维平,等. 低挥发分煤燃烧NOx排放特性的试验研究[J]. 中国电机工程学报,2003,23(8):211-214.
FANG Lijun, GAO Zhengyang, YAN Weiping, et al. Experimental study on performance of NOx emission for low volatilization coals [J]. Proceedings of the CSEE, 2003, 23(8): 211-214.
[4] 许传凯,许云松. 我国低挥发分煤燃烧技术的发展[J]. 热力发电,2001,(5):2-6.
XU Chuankai, XU Yunsong. Development of combustion technology for low volatile coals in China [J]. Thermal Power Generation, 2001, (5): 2-6.
[5] BRETEK K, BRATEK W, GERUSPIASECKA L, et al. Properties and structure of different rank anthracites [J]. Fuel, 2002, 81(1):97-108.
[6] LEE J M, KIM J S, KIM J J. Comminution characteristics of korean anthracite in a CFB reactor[J]. Fuel, 2003,(82):1349-1357.
[7] ZONDLO J W, VELEZ M R. Development of surface area and pore structure for activation of anthracite coal[J]. Fuel Processing Technology, 2007, (88):369-374.
[8] 张保生,刘建忠,程军,等. 微分差热法确定沉降炉试验中低挥发分混煤的着火点[J]. 浙江大学学报:工学版,2008,42(5):839-842.
ZHANG Baosheng, LIU Jianzhong, CHENG Jun, et al. Derivative differential thermal method for determining igniting point of lowvolatile blending coals in subsiding furnace [J]. Journal of Zhejiang University:Engineering Science, 2008, 42(5): 839-842.
[9] 曹欣玉,牛志刚,应凌俏,等. 无烟煤燃料氮的热解析出规律[J]. 燃料化学学报. 2003,31(6):538-542.
CAO Xinyu, NIU Zhigang, YING Lingqiao, et al. Releasing of fuelnitrogen during blind coal pyrolysis[J]. Journal of Fuel Chemistry and Technology, 2003, 31(6): 538-542.
[10] 曹欣玉,董洪彬,牛志刚,等. 无烟煤挥发分和焦炭独立燃烧过程中NO生成规律[J]. 燃料化学学报. 2005,33(2):140-145.
CAO Xinyu, DONG Hongbin, NIU Zhigang, et al. Characteristics of NO release for the combustion of chars and volatiles of anthracite[J]. Journal of Fuel Chemistry and Technology, 2005, 33(2): 140-145.
[11] 杨卫娟,周俊虎,杨亮,等. 醋酸镁在NO生成过程中的还原作用机理[J]. 浙江大学学报:工学版,2007,41(2):342-346.
YANG Weijuan, ZHOU Junhu, YANG Liang, et al. Reduction mechanism of magnesium acetate in NO production process[J]. Journal of Zhejiang University:Engineering Science, 2007, 41(2):342-346.
[12] 刘茂省. 空气分级和煤粉再燃技术机理及工程应用研究[D]. 杭州:浙江大学,2009:32-35,57-58.
LIU Maosheng. Mechanism and engineering study on airstage and reburn technology for coal combustion [D]. Hangzhou: Zhejiang University, 2009: 32-35, 57-58.
[13] THOMAS K M. The release of nitrogen oxides during char combustion [J]. Fuel, 1997, 76(6):457-473.
[14] OHTSUKA Y, WU Z H. Nitrogen release during fixedbed gasification of several coals with CO2:factors controlling formation of N2[J]. Fuel, 1999, 78(12):521-527.
[15] 岑可法,姚强,骆仲泱. 高等燃烧学[M]. 杭州:浙江大学出版社,2000: 585-587.
[16] 翁卫国,周俊虎,杨卫娟,等. 220t/h水煤浆锅炉NOx排放特性的研究[J]. 浙江大学学报:工学版,2006,40(8):1439-1442.
WEN Weiguo, ZHOU Junhu, YANG Weijuan, et al. Research on characteristics of NOx emission for 220t/h CWS fired utility boiler [J]. Journal of Zhejiang University: Engineering Science, 2006, 40(8): 1439-1442.
[17] HILL S C, DOUGLAS L. Smoot. Modeling of nitrogen oxides formation and destruction in combustion systems [J]. Progress in Energy and Combustion Science, 2000,26(4/6):417-458.
[18] CHAIKLANGMUANG S, JONES J M, MPURKASHANIAN M, et al. Conversion of volatilenitrogen and charnitrogen to NO during combustion[J]. Fuel, 2002, 81(18): 2363-2369.
[19]MEREB J B, WENDT J O L. Air staging and reburning mechanisms for NOx abatement in a laboratory coal combustor [J]. Fuel, 1994, 73(7): 1020-1026.
[20] TADAAKI SHIMIZU, Y

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