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我国每年因采煤向大气排放大量的甲烷气体,其中90%由乏风瓦斯排出。煤矿乏风瓦斯技术是将原直接排放到大气中的瓦斯通过乏风甲烷氧化装置进行氧化反应后产生热能,并将其产生的热能综合利用。以2008年为例,我国通过乏风瓦斯排放的纯甲烷量为161亿m~3,其热值相当于1 970万t标准煤。所以,如果能将乏风瓦斯加以利用,节能减排效果将十分显著。根据《国家中长期科学和技术发展规划纲要(2006—2020年)》和“十一五”863计划资源环境技术
Every year, China releases a large amount of methane gas to the atmosphere due to coal mining, of which 90% is discharged by the weak gas. Void gas technology in coal mines uses the methane directly discharged into the atmosphere to produce thermal energy through the oxidation reaction of the methane-depleted methane oxidation unit and comprehensively utilizes the heat energy generated therefrom. Taking 2008 as an example, the amount of pure methane discharged by our country through scarce gas is 16.1 billion m 3, and its calorific value is equivalent to 19.7 million tons of standard coal. Therefore, if we can use the weak gas, energy-saving emission reduction effect will be very significant. According to “National Medium and Long-term Scientific and Technological Development Plan (2006-2020)” and “Eleventh Five-year” 863 Program Resources and Environment Technology