Experimental on moisture effects on the gas absorption speciality of different kinds of coal

By research of deposit features of moisture of coal,the humidifying devices of coal sample was designed according to the purpose of experiment.At present,evaluating about moisture of coal affects on methane adsorptive capacity,is not considering difference of metamorphic grade.Through large numbers of determination of adsorption isotherm of coal of different metamorphic grade under the different moisture content,combining the data fitting,educed the correction coefficient which moisture of coal affects the methane's adsorptive capacity at last.Comparing it with primary coal sample,the correction coefficient is exact and suitable.