In order to study the feasibility of the temperature and pressure adsorption test method of coal in the adsorption of coalbed methane,this paper compares the temperature and pressure adsorption test meth-od of coal with the high-pressure isothermal adsorption test method of coal.Take 12,10,8,6 temperature and pressure adsorption test points as four sets of different temperatures and corresponding pressures as the temperature and pressure adsorption test points,denoted as V measured.Use the Temperature Pressure Ab-sorption Equation(TPAE)and convert the equation into a binary linear equation,then perform linear re-gression to calculate the remaining three parameters.Calculate the adsorption capacity of the four parame-ters obtained,denoted as V.The feasibility of the temperature pressure adsorption test method is evaluated by calculating the average relative error and standard deviation between V measurement and V calculation.
Coalbed methanelow-temperature gradienttemperature pressure adsorption test for coalhigh-pressure isothermal adsorption test for coalerror calculation