• 中文核心期刊
  • 中国科技核心期刊
  • RCCSE中国核心学术期刊

CO2抑制高硫煤自燃的实验研究

兰安畅, 郭春生, 李耀谦, 张吉林, 白刚, 周西华, 王思琪

兰安畅, 郭春生, 李耀谦, 张吉林, 白刚, 周西华, 王思琪. CO2抑制高硫煤自燃的实验研究[J]. 煤矿安全, 2022, 53(1): 44-48,55.
引用本文: 兰安畅, 郭春生, 李耀谦, 张吉林, 白刚, 周西华, 王思琪. CO2抑制高硫煤自燃的实验研究[J]. 煤矿安全, 2022, 53(1): 44-48,55.
LAN Anchang, GUO Chunsheng, LI Yaoqian, ZHANG Jilin, BAI Gang, ZHOU Xihua, WANG Siqi. Experimental research on CO2 inhibiting the spontaneous combustion of high sulfur coal[J]. Safety in Coal Mines, 2022, 53(1): 44-48,55.
Citation: LAN Anchang, GUO Chunsheng, LI Yaoqian, ZHANG Jilin, BAI Gang, ZHOU Xihua, WANG Siqi. Experimental research on CO2 inhibiting the spontaneous combustion of high sulfur coal[J]. Safety in Coal Mines, 2022, 53(1): 44-48,55.

CO2抑制高硫煤自燃的实验研究

Experimental research on CO2 inhibiting the spontaneous combustion of high sulfur coal

  • 摘要: 为了研究CO2对高硫煤自燃的抑制特性,选取阳泉高硫无烟煤,进行不同比例φ(O2)/φ(CO2)气氛下的热重分析实验,从燃烧特性、放热性及活化能角度探究CO2对高硫煤自燃过程的影响。结果表明:随着CO2体积分数增加,高硫煤燃烧的3个阶段温度范围呈“滞后性”,放热量和放热速率逐渐减小;着火温度、燃烧温度、最大失重温度随着CO2的增大而增加,CO2抑制了高硫无烟煤燃烧的过程,在惰性气氛下,高硫煤的燃烧性降低,燃烧所需的能量变大。从燃烧性、放热性的降低和活化能的提高,揭示了CO2对高硫无烟煤自燃过程中的抑制性。
    Abstract: In order to study the inhibitory characteristics of CO2 on the spontaneous combustion of high-sulfur coal, the high-sulfur anthracite from Yangquan was selected to conduct thermogravimetric analysis experiments under different ratios of φ(O2)/φ(CO2), exploring the influence of CO2 on the spontaneous combustion process of high-sulfur coal from the perspective of combustion characteristics, heat release and activation energy. The results show that with the increase of CO2 concentration, the temperature range of the three stages of high-sulfur coal combustion is “hysteresis”, and the heat release and the rate of heat release gradually decrease; the ignition temperature, combustion temperature and maximum weight loss temperature increase with the increase of CO2, which inhibits the combustion process of high-sulfur anthracite. In inert atmosphere, the combustability of high-sulfur coal decreases and the energy required for combustion increases. The inhibitive effect of CO2 on the spontaneous combustion of high sulfur anthracite was revealed from the decrease of combustion and exothermic property and the increase of activation energy.
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  • 发布日期:  2022-01-19

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