Review of methodological and experimental LIBS techniques for coal analysis and their application in power plants in China

doi:10.1007/s11467-016-0600-7

Front. Phys.

2016, Vol. 11

Issue (6) : 114211 https://doi.org/10.1007/s11467-016-0600-7

REVIEW ARTICLE

Review of methodological and experimental LIBS techniques for coal analysis and their application in power plants in China

Yang Zhao (赵洋)¹,Lei Zhang (张雷)^1,²(

),Shu-Xia Zhao (赵书霞)¹,Yu-Fang Li (李郁芳)¹,Yao Gong (弓瑶)¹,Lei Dong (董磊)^1,²,Wei-Guang Ma (马维光)^1,²,Wang-Bao Yin (尹王保)^1,²(

),Shun-Chun Yao (姚顺春)³,Ji-Dong Lu (陆继东)³,Lian-Tuan Xiao (肖连团)^1,²,Suo-Tang Jia (贾锁堂)^1,²

¹. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
². Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
³. School of Electric Power, South China University of Technology, Guangzhou 510640, China

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Abstract

Laser-induced breakdown spectroscopy (LIBS) is an emerging analytical spectroscopy technique. This review presents the main recent developments in China regarding the implementation of LIBS for coal analysis. The paper mainly focuses on the progress of the past few years in the fundamentals, data pretreatment, calibration model, and experimental issues of LIBS and its application to coal analysis. Many important domestic studies focusing on coal quality analysis have been conducted. For example, a proposed novel hybrid quantification model can provide more reproducible quantitative analytical results; the model obtained the average absolute errors (AREs) of 0.42%, 0.05%, 0.07%, and 0.17% for carbon, hydrogen, volatiles, and ash, respectively, and a heat value of 0.07 MJ/kg. Atomic/ionic emission lines and molecular bands, such as CN and C2, have been employed to generate more accurate analysis results, achieving an ARE of 0.26% and a 0.16% limit of detection (LOD) for the prediction of unburned carbon in fly ashes. Both laboratory and on-line LIBS apparatuses have been developed for field application in coal-fired power plants. We consider that both the accuracy and the repeatability of the elemental and proximate analysis of coal have increased significantly and further efforts will be devoted to realizing large-scale commercialization of coal quality analyzer in China.

Keywords Laser-induced breakdown spectroscopy (LIBS) coal quality elemental analysis proximate analysis calibration model

Corresponding Author(s): Lei Zhang (张雷),Wang-Bao Yin (尹王保)

Issue Date: 17 October 2016

Cite this article:

Yang Zhao (赵洋),Lei Zhang (张雷),Shu-Xia Zhao (赵书霞), et al. Review of methodological and experimental LIBS techniques for coal analysis and their application in power plants in China[J]. Front. Phys. , 2016, 11(6): 114211.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-016-0600-7
https://academic.hep.com.cn/fop/EN/Y2016/V11/I6/114211

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