Review of methodological and experimental LIBStechniques for coal analysis and their application in power plants in China
Review of methodological and experimental LIBS techniques for coal analysis and their application in power plants in China作者机构：State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy Shanxi University Taiyuan 030006 China Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan 030006 China School of Electric Power South China University of Technology Guangzhou 510640 China
出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)
年 卷 期：2016年第11卷第6期
页 面：217-230页
核心收录：
基 金：the State Key Laboratory of Power System 国家自然科学基金 国家教育部长江学者与创新团队发展计划 国家973计划 the Shanxi Scholarship Council of China 国家自然科学基金
主 题：Laser-induced breakdown spectroscopy (LIBS) coal quality elemental analysis proximate analysis calibration model
摘 要：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 C-2, 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.
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