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  • 瓦斯气这些你要知道哦!
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煤层气是指储存在煤层中以甲烷为主要成分、以吸附在煤基质颗粒表面为主、部分游离于煤孔隙中或溶解于煤层水中的烃类气体,是煤的伴生矿产资源,属非常规天然气,是近一二十年在国际上崛起的洁净、优质能源和化工原料。俗称“瓦斯”,热值是通用煤的2-5倍,1立方米纯煤层气的热值相当于1.13kg汽油、1.21kg标准煤,其热值与天然气相当,可以与天然气混输混用,而且燃烧后很洁净,[1] 几乎不产生任何废气,是上好的工业、化工、发电和居民生活燃料。

Coalbed gas is stored in coal seam methane as the main component, the hydrocarbon gas adsorbed on the particle surface, the main part of coal matrix free in coal pores or dissolved in the water of the coal seam is, the mineral resources of coal, is a non conventional natural gas, is nearly ten or twenty years the rise in the world clean and high-quality energy and chemical raw materials. Commonly known as the "gas", the calorific value is 2-5 times the common coal, calorific value of 1 cubic meters of pure gas equivalent to the 1.13kg 1.21kg standard gasoline, the calorific value of coal, and natural gas, and natural gas mixture, and burn very clean, [1] almost does not produce any waste gas, is a good industrial and chemical industry power, and the lives of the residents of fuel.

煤层气空气浓度达到5%-16%时,遇明火就会爆炸,这是煤矿瓦斯爆炸事故的根源。煤层气直接排放到大气中,其温室效应约为二氧化碳的21倍,对生态环境破坏性极强。在采煤之前如果先开采煤层气,煤矿瓦斯爆炸率将降低70%到85%。煤层气的开发利用具有一举多得的功效:洁净能源,商业化能产生巨大的经济效益。为战略资源。

When the air concentration of coal bed gas reaches 5%-16%, it will explode when exposed to open flame. Coal bed gas is directly discharged into the atmosphere, the greenhouse effect is about 21 times that of carbon dioxide, and it is very destructive to the ecological environment. Coal mining gas explosion rate will be reduced by 70% to 30% if the coal seam gas is mined before mining. The exploitation and utilization of coalbed methane has the effect of multiple purposes: clean energy, commercial production can produce huge economic benefits. National strategic resources.

煤炭源于陆生高等植物,煤的原始有机物质主要是碳水化合物、木质素,成煤作用由泥炭化和煤化作用2个阶段完成。由植物-泥炭-褐煤-烟煤-无烟煤,是经过未成岩-成岩-变质作用-泥炭化-煤化的全过程。 泥炭化阶段(成岩期前),有机质在低温(<50℃) 和近地表氧化环境中,由于细菌的作用,生成少量甲烷及二氧化碳,呈水溶状态或游离状态而散失。 褐煤阶段已经进入成岩阶段,属煤化作用的未变质阶段。

Coal derived from terrestrial higher plants, the original organic matter in coal is mainly carbohydrates,