温度对极低浓度瓦斯氧化影响的研究

 摘要：本文实验通过配置浓度为0.75%、0.5%和0.25%的极低浓度甲烷来模拟矿井乏风，使三个浓度的甲烷通过高温炉膛，收集炉膛排除的气体，并对收集气体进行测试，以得到矿井乏风高温氧化的条件和规律。实验通过调整炉膛温度以得到不同温度下极低浓度甲烷的氧化情况。结果表明，甲烷浓度越高则氧化所需的温度越低；甲烷浓度越低，氧化所需的温度越高；根据实验研究得出极低浓度甲烷在锅炉炉膛中应该在750℃左右时即开始被氧化，甲烷浓度逐渐降低，且在800℃左右时能被被完全氧化。

Study on Temperature Affected to Oxidation of Ultra Low Concentration Gas

AbstractIn this paper , experimental through deploying extremely low concentrations methane whose concentration are 0.75%、0.5% and 0.25% to imitate coal mine ventilation air methane. Making the three concentration of methane through high temperature furnace, and collect the exclude gases of furnace. Then to detect the collected gas and confirm the conditions and characteristics of coal mine ventilation air methane。The study show； the higher the concentration is, the lower oxidation temperature needs; the lower the concentration is, the higher oxidation temperature needs.；In the simulation experiments, the extremely low concentrations methane can be gradually oxidized in the temperature of 750℃,and be completely oxidized in the temperature of 800℃。