摘要
研究了我国15种典型原煤的PL-Raman光谱,提出了3个能代表光谱特性的特征参数,建立了特征参数与水分、挥发分的质量分数以及燃烧着火温度和燃尽温度的定量关联,并提出了基于PL-Raman光谱分析的煤质快速检测方法。结果表明:煤的荧光特性由水分和挥发分的质量分数共同决定,随着水分和挥发分质量分数的增加,荧光特性显著增强;特征参数与煤中的挥发分质量分数、碳氢质量比和燃烧特征温度间存在良好的数学关联,相关系数较高,可用于煤质特性和燃烧特性的快速检测。
PL-Raman spectroscopy of 15 kinds of typical Chinese raw coals was studied and three characteristic parameters were proposed to represent the spectral characteristics.Quantitative relationships between these parameters and moisture content,volatile content,ignition temperature and burnout temperature were set up.Then rapid evaluation method of coal property using PL-Raman spectroscopy was proposed.Results show that the fluorescence characteristics of coal are synthetically determined by moisture and volatile content,and the fluorescence intensity increases significantly with the increase of moisture and volatile content.There are fairly good relationships between characteristic parameters and volatile content,C/H mass ratio and combustion characteristic temperature,whose correlation coefficient is high.This method can be used to evaluate coal property and combustion characteristics.
作者
于鹏峰
苏攀
刘佳薇
钟毓秀
徐俊
苏胜
胡松
向军
YU Pengfeng;SU Pan;LIU Jiawei;ZHONG Yuxiu;XU Jun;SU Sheng;HU Song;XIANG Jun(Huadian Electric Power Research Institute Co.,Ltd.,Hangzhou 310030,China;China State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2022年第3期215-220,共6页
Journal of Chinese Society of Power Engineering
基金
中国华电集团科技资助项目(CHDKJ18-02-66)
国家自然科学基金资助项目(51806073)。
关键词
煤结构
燃烧特性
拉曼光谱
荧光特性
coal structure
combustion characteristics
Raman spectroscopy
fluorescence characteristics
