Differences in Pore Structures and Absorptivity between Tectonically Deformed and Undeformed Coals

详细信息   

• 责任者：Wang Xianghao (College of Geoscience and Surveying Engineering ; China University of Mining ＆ Technology ; Beijing 100083 ; China) ; Wang Yanbin
• 刊名：Geological Journal of China Universities
• 出版年：2012
• 卷期：18(3)
• 关键词：构造煤 ; tectono-coal ; 孔隙结构 ; pore structure ; 吸附作用 ; adsorption
• 页码：p.528-532
• 图表：2 illus., 2 tables, 8 refs.
• 分类号：1004
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

摘要

    

Based on the adsorption experiment of the coal samples from the Jincheng and Jiaozuo areas, the difference and geological controls of pore structure and adsorptivity between the tectonically deformed and undeformed coals were comparatively discussed. It was found that the turning point between two liquid nitrogen adsorption stages for the deformed samples move forward comparing to the undeformed samples, indicating the smaller median diameter and the larger volume and specific surface area of total, middle and micro-pores in the deformed samples.