黑龙江科技大学学报2026，Vol.36Issue(3)：385-390,6.DOI:10.3969/j.issn.2095-7262.2026.03.008
不同升温速率对水浸煤二次氧化过程中CO与CO2生成特性的影响
Effects of different heating rates on generation properties of CO and CO2 during secondary oxidation of water-immersed coal
邢婧 1孔松2
作者信息
- 1. 黑龙江科技大学 安全工程学院,哈尔滨 150022
- 2. 宁波工程学院 安全工程学院,浙江 宁波 315211
- 折叠
摘要
Abstract
This paper aims to investigate the effect of different heating rates on the generation behav-ior of indicator gases during the secondary oxidation of water-immersed coal.By taking the water-im-mersed coal samples as the research object,the study systematically examines the characteristics of O2 consumption and CO and CO2 production during the primary and secondary oxidation processes by tem-perature-programmed oxidation experiments at different heating rates,and,analyzes by stages the appar-ent activation energies of CO and CO2 generation.The results show that compared with the primary oxida-tion,the oxygen consumption rate of the coal samples is reduced during secondary oxidation,whereas the production rates of CO and CO2 become more pronounced in the medium-and high-temperature ranges.In addition,secondary oxidation generally reduces the apparent activation energy for CO2 generation.Nota-bly,under a heating rate of 0.5℃/min,the apparent activation energy for CO2 generation in the 40-110℃range is higher than that observed at other heating rates.These findings reveal the coupled effects of heating rate and oxidation number on the secondary oxidation of water-immersed coal,and provide a theoretical basis for a deeper understanding of the spontaneous combustion mechanism of re-oxidized coal.关键词
煤自燃/氧化阶段/表观活化能/氧化复合反应Key words
coal spontaneous combustion/oxidation stage/apparent activation energy/coal-oxygen complex reaction分类
矿业与冶金引用本文复制引用
邢婧,孔松..不同升温速率对水浸煤二次氧化过程中CO与CO2生成特性的影响[J].黑龙江科技大学学报,2026,36(3):385-390,6.
