低浓度煤层气利用技术研究现状及应用展望

Research status of low concentration coal mine methane utilization technology and application prospect

煤矿低浓度煤层气及乏风瓦斯对空排放造成巨大的能源浪费,并造成显著的温室效应趋势,是煤矿最主要的温室气体排放源。按国家煤层气利用的发展规划,在"十三五"阶段将会有煤层气利用技术的广泛推广应用。针对煤层气利用技术,如煤层气深冷液化提纯技术、低浓度煤层气内燃机发电技术等,国内外已有较多科研院所及设备厂家开展了相关技术研究工作,探讨其合理高效利用的途径及实施方式。介绍了低浓度煤层气的主要技术利用途径,对各利用途径的优缺点及适用特点进行了剖析,并对各类技术途径的应用现状进行了阐述,对其应用前景进行了展望。

Emissions of low concentration coal mine methane（ CMM） and ventilation air methane（ VAM） to the atmosphere with huge quantity every year has got great energy dissipation and greenhouse effect,which was the main source of the greenhouse gas in coal mine. According to the CMM utilization plan of China,there would be large number of CMM utilization projects in proceedings in the following years. There were many institutes and factories has been carrying out research on the CMM and VAM utilization technologies,such as CMM liquidization,CMM engine technology,VAM oxidation,and so on. The main use of CMM was introduced,the advantages and disadvantages of the corresponding way was analyzed,and the progress of the main utilization was stated. Finally,application prospect was forecasted.