杨君文,赵晓慧,郑斌

• 1:西安科技大学材料科学与工程学院
• 2:西安科技大学图书馆

摘要(Abstract)：

构造煤在我国煤炭资源中占比较大，开展构造煤中气体赋存规律研究意义重大。使用分子尺度模拟方法研究煤在机械载荷作用下的微观孔隙结构以及甲烷吸附性能演化规律，结果表明，膨胀变形导致煤体孔隙率和比表面积增大，而压缩变形不利于二者。进一步研究发现，煤体吸附甲烷属于典型的单分子层吸附，膨胀变形会导致煤吸附甲烷性能增强，尤其构造煤内的封闭孔和开放孔尺寸变化对其吸附甲烷性能的影响较大。研究结果对于理解构造煤形成时微观孔隙结构演化以及甲烷气体赋存规律提供一定的理论指导。

关键词(KeyWords)： 煤层气;构造煤;微观结构;分子模拟;甲烷吸附

Abstract:

Keywords:

基金项目(Foundation): 陕西省自然科学基金面上项目（2023-JC-YB-371）

作者(Author): 杨君文,赵晓慧,郑斌

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