TY - JOUR A2 - Zhu, Zhijie AU - Zhao, Xun AU - Feng, Tao AU - Wang, Ping AU - Liao, Ze PY - 2021 DA - 2021/06/12 TI - Study on the Effect of Soft and Hard Coal Pore Structure on Gas Adsorption Characteristics SP - 1425227 VL - 2021 AB - In order to grasp the effect of soft and hard coal pore structure on gas adsorption characteristics, based on fractal geometry theory, low-temperature nitrogen adsorption and constant temperature adsorption test methods are used to test the pore structure characteristics of soft coal and its influence on gas adsorption characteristics.方位算法测量分形维度 和煤样本微结构分布研究结果显示软煤初始氮吸附能力大于硬煤,软煤吸附歇斯底里循环比硬煤更显眼并吸附曲线快速上升 高相对压力段特定表面积和孔积软煤大于硬煤孔数远大于硬煤具体地说,微粒吸附力场的叠加和介质扩散增强软煤吸附潜力引入吸附居住时间概念后得出的结论是,软煤表面更多吸附点延长软煤表面气体吸附和居住时间软煤表面分形特征比较明显软煤饱和吸附率和饱和吸附率均大于硬煤本手稿的研究成果将为深入分析软煤层中煤层甲烷吸附/解吸机制提供理论基础,并拟制实战煤层甲烷控制措施SN - 1687-8086UR- https://doi.org/101155/2021142527DO-101155/2021145227JF-土木工程PB-HindawiKW-ER