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Development of Coalbed Methane and Coal Mine Methane in Chian

机译:中国煤层气和煤矿瓦斯的发展

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摘要

Col resources in China amounted to 5.57 trillion tons in 1997. China is lagest coal producer in the world with annual output of 1.2 billion tons in 1998. About 48 per cent of coal mines in the country are confronted with gas hazards because of high gas contents. It is estiamted that the quantity of coal mine methane from coal mining reached 9 billion m~3 per year in China. To improve he safety conditions, tests on gas drainage were successfully made in Longfeng mine, Fushun in the 1950s. After that, this technique was popularized at many highly gassy mines in this country. Up to 1998, 158 mines were equipped with underground methane drainage systems in China. The amount of methane drained reached 742 million m~3 per year, of which 500 million m~3 were supplied to households for cooking.
机译:1997年,中国的矿资源达5.57万亿吨。中国是世界上最大的煤炭生产国,1998年的年产量为12亿吨。该国约48%的煤矿因高瓦斯含量而面临瓦斯危害。据估计,中国每年从煤矿开采的甲烷量达到90亿立方米。为了改善安全条件,1950年代在抚顺龙凤矿成功进行了瓦斯抽放试验。此后,该技术在该国的许多高瓦斯矿井中得到了普及。截至1998年,中国有158个矿井装备了地下甲烷排放系统。每年排放的甲烷量达到7.42亿立方米3,其中有5亿立方米3被提供给家庭做饭。

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