煤矿煤气俗称瓦斯,是一种留存或吸附在煤层中、基本上未经转移的可燃性气体。主要成分为甲烷。煤矿开采时必须提前将它抽放掉,否则将对采矿人员生命安全构成严重威胁。但煤矿煤气同时又是一种宝贵的清洁能源和重要的化工原料。目前,如何安全、高效和低耗地分离煤矿煤气已成为一个世界性的难题。如果能成功,意味着我国煤矿 Coal gas commonly known as gas, is a retained or adsorbed in the coal seam, basically without the transfer of flammable gas. The main component of methane. Coal mining must be pumped out ahead of schedule, otherwise it will pose a serious threat to the safety of miners. However, coal gas is also a valuable clean energy and an important chemical raw material. At present, how to separate mine gas safely, efficiently and cost-effectively has become a worldwide problem. If successful, means that China’s coal mines