工矿自动化2026，Vol.52Issue(1)：154-160,7.DOI:10.13272/j.issn.1671-251x.2025100039
硫含量对无烟煤自燃特性影响实验研究
Effect of sulfur content on spontaneous combustion characteristics of anthracite
摘要
Abstract
The spontaneous combustion process of coal is influenced by multiple factors.Existing studies mainly investigate coal spontaneous combustion characteristics from aspects such as coal metamorphic degree,oxygen concentration,air supply rate,air humidity,particle size,and moisture content rate.However,the sulfur content in coal is also one of the important factors affecting coal spontaneous combustion.To investigate the effects of sulfur content on the spontaneous combustion characteristics and oxidation kinetic parameters of anthracite,oxidation processes of five coal samples with different sulfur contents were tested using a programmed temperature-rise experiment system with a tube furnace.The effects of different sulfur contents on CO and CO2 gas release characteristics and characteristic temperatures of spontaneous combustion during the low-temperature oxidation process of coal were quantitatively analyzed.By calculating the oxygen consumption rates of coal samples with different sulfur contents under different temperature conditions,the variation pattern of the oxygen consumption rate with temperature was quantitatively examined.Based on chemical reaction kinetics,the apparent activation energies of coal samples under different sulfur contents were calculated,and the variation pattern of apparent activation energy with sulfur content was quantitatively analyzed.The results showed that when the sulfur content remained constant,the concentrations of CO and CO2 and the oxygen consumption rate increased exponentially with increasing temperature,while the apparent activation energy gradually decreased.With increasing sulfur content,the concentrations of CO and CO2 and the oxygen consumption rate at each temperature point first increased and then decreased,reaching maximum values at a sulfur content of 5.14％.In contrast,the characteristic temperature of spontaneous combustion and the apparent activation energy showed opposite trends and reached minimum values at a sulfur content of 5.14％,at which point the coal sample exhibited the strongest spontaneous combustion tendency.Therefore,the critical sulfur content affecting the spontaneous combustion tendency of anthracite was 5.14％.关键词
无烟煤/高硫煤/煤自燃特性/硫含量/耗氧速率/表观活化能Key words
anthracite/high-sulfur coal/spontaneous combustion characteristics of coal/sulfur content/oxygen consumption rate/apparent activation energy分类
矿业与冶金引用本文复制引用
周露函,姜延航,白刚,高振勇,刘泽畅,罗根华,郝慧颖..硫含量对无烟煤自燃特性影响实验研究[J].工矿自动化,2026,52(1):154-160,7.基金项目
贵州省科技计划项目(课题)(黔科合平台JSZX[2025]019) （课题）
毕节市科学技术局联合基金项目([2025]96号) （[2025]96号）
辽宁省自然科学基金优秀青年基金项目(2024JH3/10200042). （2024JH3/10200042）
