Adsorption experiments on CH4 under the conditions of high temperature and pressure and equilibrium water

作者：Liu Gao Feng^*; Zhang Zi Xu; Song Zhi Min; Lang Wei Wei

来源：Journal of China Coal Society, 2012, 37(5): 794-797.

• Adsorption experiment
• Burial depths
• Coal sample
• Coalbeds
• Coking coal
• Combined effect
• Elevated temperature
• High temperature and pressure
• Temperature increase

Under conditions of high temperature and pressure and with equilibrium water, the adsorption experiments on CH4 were carried out with lignite, gas coal, coking coal and anthracite. The experiment results show that the VL of lignite decreases with increasing temperature, but it is in contrast with the situation about coking coal. And the VL of gas coal and anthracite first increases and then decreases with increasing temperature. The coalbed temperature increases with the burial depth increasing, but the elevated temperature causes low adsorption and low moisture content. The adsorption increases because of the elevated moisture content. So, the characteristical results of this adsorption experiments are due to the combined effects of temperature and pressure and water content. The coal samples with equilibrium water corresponding to the simulated temperature shoud be selected to carry out adsorption experiments on deep coalbed.

• 出版日期2012
• 单位Polytechnic university