Coalbed gas (CBG) has been widely used as an important energy source. However, its utilization and allocation system is imperfect in mining areas. During the utilization process, a large amount of CBG is discharged into the air, causing environmental pollution. In this study, we proposed a “full spectrum-domain-time” CBG utilization model. In this model, by combining high methane concentration gas power generation, low methane concentration gas purification, and ultra-low methane concentration gas thermal storage and oxidation utilization, we were able to utilize CBG with full-spectrum of methane concentrations. In addition, by establishing CBG transportation and storage system in mining area, we were able to realize CBG supply in the entire network domain. Furthermore, based on the time series prediction algorithm, the CBG demand of different mining areas is predicted and regulatorily met by real time allocation. Through these three steps, an efficient “full spectrum-domain-time” CBG utilization system was formed and practically applied in Yangquan mining area. The application results showed that under the comprehensive control of “full spectrum-domain-time” CBG utilization model, CBG with methane concentration ≥0.2% could be used in the mining area and its utilization rate increased year by year, reaching the highest of 77.15%. Overall, our study provided a reference for the efficient CBG utilization in the mining area.

煤层气（CBG）已被广泛用作重要的能源。但是，其利用和分配系统在矿区并不完善。在利用过程中，大量的CBG排放到空气中，造成环境污染。在这项研究中，我们提出了“全频谱域时” CBG利用模型。在该模型中，通过将高甲烷浓度的气体发电，低甲烷浓度的气体净化以及超低甲烷浓度的气体储热和氧化利用相结合，我们能够利用全光谱甲烷浓度的CBG。此外，通过在矿区建立CBG运输和存储系统，我们能够在整个网络域中实现CBG供应。此外，基于时间序列预测算法，通过实时分配可以预测和规范地满足不同矿区的CBG需求。通过这三个步骤，形成了一套有效的“全谱域时域” CBG利用系统，并在阳泉矿区得到了实际应用。应用结果表明，在“全频域-时域” CBG利用模型的综合控制下，矿区可使用甲烷浓度≥0.2％的CBG，其利用率逐年提高，最高达到77.15。 ％。总体而言，我们的研究为矿区有效利用CBG提供了参考。应用结果表明，在“全频域-时域” CBG利用模型的综合控制下，矿区可使用甲烷浓度≥0.2％的CBG，其利用率逐年提高，最高达到77.15。 ％。总体而言，我们的研究为矿区有效利用CBG提供了参考。应用结果表明，在“全频域-时域” CBG利用模型的综合控制下，矿区可使用甲烷浓度≥0.2％的CBG，其利用率逐年提高，最高达到77.15。 ％。总体而言，我们的研究为矿区有效利用CBG提供了参考。