Effect of temperature changing on desorption of coalbed methane

Using the absorption and desorption experiments of No.3 coalbed of the Sihe coal mining,discuss how the temperature changes affect desorption of coalbed methane,and reach three important conclusions:①With increasing temperature,the desorption rate has increased,and the desorption will be inhibited when the temperature reduces;②During the step-down desorption process,desorption volume are larger at low-pressure phase;③From 22 ℃ to 38 ℃,the desorption rate has increased by4.5%/3 ℃,the effect of temperature rise on desorption is much more sensitive than pressure reduces.