Gas Adsorption Property of Bituminous Coal under Water Influence
In order to study gas absorption under water influence of bituminous coal, it taking Shan'xi Lu'an Wangzhuang coal mine as studying object, to two different metamorphism degree of bituminous coal, gas absorption under different water content were tested, and micro pore structure of coal sample was analyzed by mercury intrusion method, the influence mechanism that water content to coal gas absorption was analyzed from micro perspective, the results showed that coal gas absorption was the largest under dry state, water content has an important influence to gas absorption, under water influence, WZ3 coal sample presented as nonlinear attenuation first-ly faster later slowly, but coal sample WZ15 presented as linear variation, under different hole diameter scope, the pore volume and pore specific surface area of coal sample WZ15 all larger than coal sample WZ3, it illustrated that pore structure more developed of coal sample WZ15 than WZ3, so the coal sample WZ15 presented better absorption under different water content stage than coal sample WZ3.
NETL
NSTL
万方数据
维普
