西安科技大学学报2017，Vol.37Issue(1)：1-6,6.DOI:10.13800/j.cnki.xakjdxxb.2017.0101
基于热重-傅里叶红外光谱联用的煤矸石自燃特性及微观表征
Spontaneous combustion characteristics and micro characterization of coal gangue based on thermogravimetry-fourier tromsform infrared spectrometer
摘要
Abstract
Spontaneous combustion of coal gangue ( CG ) causes serious environmental and ecological problems. The oxidation characteristics of coal gangue,such as mass loss rate,gas production rate and functional group change were studied using thermogravimetry-fourier transform infrared spectrometer ( TG-FTIR) technique and temperature programming experiment. FTIR spectrums indicated that coal gangue contained analogous hydroxyl, aliphatic, functional group, and aromatic compounds. Mean-while, the results showed that the total weight loss ratio of CG was about 30. 30% in the oxidation process;the CG spontaneous combustion process was divided into four phases,the weight loss at each stage was 1. 05%,3. 27%,20. 36%, and 5. 31%, respectively. The calculated fuel ratio of CG was 0. 88 and the integrated combustion characteristic index ( S ) was 32. 34 × 10 -11%2 · min-2 · K-3 ,which indicated that the sample of Wuhai CG has good oxidation and spontaneous combustion ignition property. The devolatilization rate is fast and the CG is easy to ignite.关键词
煤矸石/自燃/程序升温/热重-傅里叶红外光谱Key words
coal gangue/spontaneous combustion/temperature programming/TG-FTIR分类
矿业与冶金引用本文复制引用
邓军,李贝,肖旸,马砺,徐启铭..基于热重-傅里叶红外光谱联用的煤矸石自燃特性及微观表征[J].西安科技大学学报,2017,37(1):1-6,6.基金项目
国家自然基金(51134019) （51134019）
国家自然科学基金(51574193) （51574193）
陕西省自然科学基金(2014JM7276) （2014JM7276）
陕西省工业科技攻关(2016GY-191) （2016GY-191）
