Study on Description of Empirical Formula on Gas Desorption of Coal Particles in Low Temperature Environment

There are many studies on empirical formula for gas desorption of coal particles in domestic and international, but they are the descriptions under the room temperature and high temperature. Low temperature can inhibit gas desorption, improve the accuracy of gas content. Based on this, a high-low temperature adsorption-desorption experiment system is used to test gas desorption in low temperature. The results showed that the lower of the temperature is, the shorter of the desorption time is, and the significant effect of the empirical formula on gas desorption of coal particles is. The descriptions of gas desorption from Winter and WANG You′an are accurate in low temperature environment.