Energy Calculation and Simulation of Methane Adsorbed by Coal with Different Metamorphic Grades

• DOI: 10.1021/acsomega.0c00462
• Publication Date: 2020-06-16T16:40:37Z
• Authors: Xiangchun Li; Xiaolong Chen; Fan Zhang; Mengting Zhang; Qi Zhang; Suye Jia
• Keywords: Isothermal process

The law of specific surface energy variation during the adsorption process is an important basis for studying mechanisms coal gas adsorption. Based on theory energy, eight samples with different ranks were analyzed using isothermal experiment at three temperatures (30, 40, and 50 °C) six pressures (0.1, 0.2, 0.6, 1.0, 1.4, 1.8 MPa). Then, single-layer model multilayer used to calculate process. Just like capacity, it clear that inversely proportional temperature pressure. difference between calculation large. Therefore, was calculated based calorific value, comparative analysis shows can better reflect capacity than model. explored, such as intermolecular force, variation, area. simulated, which indicated affected by both physical properties internal chemical structure.