工程科学学报2018，Vol.40Issue(3)：330-339,10.DOI:10.13374/j.issn2095-9389.2018.03.009
热溶煤的燃烧特性
Combustion characteristics of thermal dissolution coal
摘要
Abstract
Coal is one of the most important energy sources in our society. However, there have been increasing environment concerns regarding coal utilization. The high-value application of low-rank coal has an important significance for broadening the energy pathways, improving energy efficiency, and solving environmental problems. In this study, thermal dissolution coals ( TDCs) , which have low ash and high volatility, were extracted from four types of low-rank coal by N-2-methyl-2-pyrrolidinone ( NMP) . The combustion characteristics of TDCs were investigated by thermogravimetric analysis, and the structure variation law of raw coals and TDCs were compared using Raman spectra. The results show that the ash content and fixed carbon of TDCs significantly decrease, whereas the vol-atile content and high heating valve increase. The H/C atomic ratios of KL, GD, and ZS TDCs are higher than those of raw coals, whereas XB has a lower H/C atomic ratio than that of raw coal. The ratio of peak intensity ( ID/IG ) and peak area ( AD/AG ) values of KL, GD, and ZS TDCs are greater than those of raw coals, indicating that as the ordering degrees of these TDCs decrease, the structure deficiencies and combustion reactivity increase. In contrast, XB coal showed opposite results.关键词
低阶煤/热溶煤/燃烧特性/热萃取/拉曼光谱Key words
low-rank coal/thermal dissolution coal/combustion characteristic/thermal extraction/Raman spectrum分类
化学化工引用本文复制引用
赵骏,左海滨,龙思阳,王静松,薛庆国..热溶煤的燃烧特性[J].工程科学学报,2018,40(3):330-339,10.基金项目
国家自然科学基金资助项目(51574023) （51574023）
国家重点研发计划资助项目(2016YFB0600701) （2016YFB0600701）
