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柳林矿区不同煤岩类型煤的孔隙特征 被引量:14

Pore Characteristics of Different Coal Types by Lustre in Liulin Mining Area
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摘要 为系统表征不同煤岩类型的焦煤孔隙发育特征,选取鄂尔多斯盆地东缘柳林矿区太原组8+9号煤层4种不同煤岩类型的煤样,采用低温液氮吸附试验分析方法表征煤样孔隙类型、比表面积、孔体积和孔径之间的关系,结果表明:光亮型煤以一端封闭的圆筒形孔、平行板状孔、楔形孔以及锥形孔为主;半亮型煤和半暗型煤以两端开口圆筒形孔及四边开放的平行板孔为主;暗淡型煤以墨水瓶状孔为主。在阶段比表面积贡献曲线图中,光亮型煤出现小孔、中孔比表面积双峰;半亮型煤、半暗型煤出现微孔比表面积单峰;暗淡型煤出现微孔和小孔比表面积双峰。光亮型煤、半亮型煤、半暗型煤、暗淡型煤分形维数逐渐增加,较高的比表面积对应较高的表面分形维数。
出处 《煤炭科学技术》 CAS 北大核心 2013年第S2期362-366,共5页 Coal Science and Technology
基金 国家自然科学基金资助项目(41272175) 国家科技重大专项资助项目(2011ZX05034 Z011ZX05062-1)
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参考文献16

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