Recent progress on laser-induced breakdown spectroscopy for the monitoring of coal quality and unburned carbon in fly ash

Our recent progress on developments of laser-induced breakdown spectroscopy （L[BS） based equipments for on-line monitoring of pulverized coal and unburned carbon （UC） level of fly ash are reviewed. A fully software-controlled LIBS equipment comprising a self-cleaning device for on-line coal quality...

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Bibliographic Details
Published in:Frontiers of physics 2012-12, Vol.7 (6), p.690-700
Main Author: 张雷 胡志裕 尹王保 黄丹 马维光 董磊 武红鹏 李志新 肖连团 贾锁堂
Format: Article
Language:English
Subjects:
Aluminum
Astronomy
Astrophysics and Cosmology
Atomic
Carbon
Coal
Condensed Matter Physics
Control equipment
Data processing
Fly ash
Iron
Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy (LIBS)
Magnesium
Molecular
Monitoring
multivariate inverse regression
on-line coal quality analysis
Optical and Plasma Physics
organic oxygen
Particle and Nuclear Physics
Physics
Physics and Astronomy
Power plants
proximate analysis
Pulverized coal
Review Article
Spectroscopy
unburned carbon
光谱监测
击穿
数据处理方法
未燃碳
激光诱导
煤炭质量
自动取样装置
飞灰
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Summary:Our recent progress on developments of laser-induced breakdown spectroscopy （L[BS） based equipments for on-line monitoring of pulverized coal and unburned carbon （UC） level of fly ash are reviewed. A fully software-controlled LIBS equipment comprising a self-cleaning device for on-line coal quality monitoring in power plants is developed. The system features an automated sampling device, which is capable of elemental （C, Ca, Mg, Ti, Si, H, Al, Fe, S, and organic oxygen） and proximate analysis （Qad and Aad） through optimal data processing methods. An automated prototype LIBS apparatus has been developed for possible application to power plants for on-line analysis of UC level in fly ash. New data processing methods are proposed to correct spectral interference and matrix effects, with the accuracy for UC level analysis estimated to be 0.26%.
ISSN:2095-0462
2095-0470
DOI:10.1007/s11467-012-0259-7