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通过对我国地下开采煤矿瓦斯排放现状的分析,结合其排放的主要环节,总结了煤矿甲烷排放的核算公式,并建立了瓦斯排空和瓦斯燃烧利用时的碳排放量计算公式。通过对万立方米瓦斯利用率不同时碳排放量的核算,得到了瓦斯利用率与碳排放量呈负相关性。基于碳排放权建立了瓦斯利用经济效益的核算方法,计算了万立方米瓦斯利用率不同时的经济效益。研究结果表明,万立方米瓦斯利用率由0提高到100%,碳排放量从167.50t减少到18.43t,经济效益从-16750元增加到1757.5元。
Based on the analysis of the status quo of coal mine methane emissions in underground mining in our country and the main aspects of its emissions, the paper formulates the calculation formula of methane emission in coal mine and establishes the formula for calculating carbon emission when using gas drainage and gas combustion. By calculating the carbon emissions at different utilization rates of 10,000 cubic meters, the gas utilization efficiency is negatively correlated with the carbon emission. Based on the carbon emission right, an economic calculation method of gas utilization efficiency was established and the economic benefits of different gas utilization rates of 10,000 cubic meters were calculated. The results show that the gas utilization rate of 10,000 cubic meters is increased from 0 to 100%, the carbon emission is reduced from 167.50t to 18.43t, and the economic benefit is increased from -16750 yuan to 1757.5 yuan.