Structure and behavior of soot in pulverized-coal flame

被引：0
|
作者：
Zhuo, Jian-Kun [1 ]
Li, Shui-Qing [1 ]
Song, Qiang [1 ]
Yao, Qiang [1 ]
机构：
[1] Key Laboratory of Thermal Science and Power Engineering, Tsinghua University, Beijing 100084, China
来源：
Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology | 2009年 / 15卷 / 01期
关键词：
Coal - Nanostructures - Pulverized fuel - Coal dust - High resolution transmission electron microscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, the soot generated from a pilot-scale 25 kW down-fired combustor was extensively investigated by using a nitrogen-aspirated, water-cooling isokinetic probe with two-stage dilution. A 13-stage electric low pressure impactor (ELPI) was used to deposit particles, among which the last six stages were selected for the further analysis by the high-resolution transmission electron microscopy (HRTEM). The result indicates that different experiences of soot particles in coal flames cause different nanostructures of soot, which reflects the complex mechanisms of soot particles in high temperature oxidative ambiences, including the formation of primary particles, graphitization, oxidation and the interaction between soot and metals connected with organic compounds during coal devolatilization.
引用
收藏
页码：74 / 81
相关论文
共 50 条
  • [41] Ignition model of pulverized-coal cloud heated by radiation
    Sheng, Changdong
    Yuan, Jianwei
    Xu, Minghou
    Ma, Yuyi
    Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology, 1996, 2 (01): : 38 - 45
  • [42] ENGINEERING ASSESSMENT OF AN ADVANCED PULVERIZED-COAL POWERPLANT.
    YASENCHAK, G.M.
    LADINO, R.H.
    WALTZ, R.
    POWERS, J.M.
    SLOBODA, A.T.
    CARTER, J.
    1982,
  • [43] Soft technique for the measurement of the concentration of pulverized-coal in a boiler with its pulverized-coal being transported by depleted exhaust gas and the related simulation study
    Jin, L.
    Shen, J.
    Reneng Dongli Gongcheng/Journal of Engineering for Thermal Energy and Power, 2001, 16 (02): : 175 - 178
  • [44] Observation of the detailed structure of a turbulent pulverized coal combustion flame
    Hwang, SM
    Oomagari, K
    Akamatsu, FT
    Katsudi, M
    Kurose, R
    Tsuji, H
    Makino, H
    COMBUSTION SCIENCE AND TECHNOLOGY IN ASIA-PACIFIC AREA: TODAY AND TOMORROW, 2003, : 414 - 417
  • [45] Diffusion MILD Combustion of Firing Pulverized-coal at a Pilot Furnace
    Mei, Z.
    Li, P.
    Mi, J.
    Wang, F.
    Zhang, J.
    FLOW TURBULENCE AND COMBUSTION, 2015, 95 (04) : 803 - 829
  • [46] Simultaneous measurements of two-dimensional temperature and particle concentration distribution from the image of the pulverized-coal flame
    Wang, Fei
    Yan, Jianhua
    Cen, Kefa
    Huang, Qunxing
    Liu, Dong
    Chi, Yong
    Ni, Mingjiang
    FUEL, 2010, 89 (01) : 202 - 211
  • [47] Slagging characteristics on refractory materials during pulverized-coal combusting
    He, Jin-Qiao
    Shi, Zhang-Ming
    Chen, Dong-Lin
    Mei, Chi
    Yan, Xiao-Zhong
    Meitan Xuebao/Journal of the China Coal Society, 2009, 34 (05): : 692 - 696
  • [48] Pulverized-coal injection at a blast furnace with a conical charging system
    Filatov S.V.
    Basov V.I.
    Kurunov I.F.
    Steel in Translation, 2015, 45 (07) : 503 - 506
  • [49] Large-Eddy Simulation of Swirling Pulverized-Coal Combustion
    Hu, L. Y.
    Zhou, L. X.
    Luo, Y. H.
    Xu, C. S.
    CLEANER COMBUSTION AND SUSTAINABLE WORLD, 2012, : 42 - 45
  • [50] Modeling soot derived from pulverized coal
    Brown, AL
    Fletcher, TH
    ENERGY & FUELS, 1998, 12 (04) : 745 - 757
12345