煤矿瓦斯利用的低碳与经济效益初步研究

Study on low-carbon and economic benefits of colliery gas utilization

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。

After analyzing the colliery gas emission during underground mining, the formula of evaluating colliery methane emission amount was concluded in combination with major emission procedures, and the formulae of calculating carbon emission amount at gas direct emission and gas combustion were established. By evaluating the carbon emission amount at various gas utilization ratio per 10 000 m3, it was concluded that the gas utilization ratio was inversely proportional to the carbon emission. Based on carbon emission right, the method of evaluating the economic benefits of gas utilization was established, and the economic benefits at various gas utilization ratio per 10 000 m3 were predicted. The study results showed： while the gas utilization ratio per 10 000 m3 enhanced from 0 to 100%, the carbon emission amount reduced from 167.50 to 18.43 t, and the economic benefits increased from -16 750 to 1 757.5 RMB.