[1]林海飞,程博,李树刚,等.新疆阜康矿区煤层孔隙结构特征的氮吸附实验研究[J].西安科技大学学报,2015,(06):721-726.[doi:10.13800/j.cnki.xakjdxxb.2015.0608]
 LIN Hai-fei,CHENG Bo,LI Shu-gang,et al.Nitrogen adsorption experimental study on pore structure characteristics of coal seams in Xinjiang Fukang mining area[J].Journal of Xi'an University of Science and Technology,2015,(06):721-726.[doi:10.13800/j.cnki.xakjdxxb.2015.0608]
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新疆阜康矿区煤层孔隙结构特征的氮吸附实验研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年06期
页码:
721-726
栏目:
出版日期:
2015-12-30

文章信息/Info

Title:
Nitrogen adsorption experimental study on pore structure characteristics of coal seams in Xinjiang Fukang mining area
作者:
林海飞1程博1李树刚1曾强2张雪涛3成连华1
1.西安科技大学 能源学院,陕西 西安 710054; 2.新疆煤炭科学研究所,新疆 乌鲁木齐 830091; 3.兖矿新疆矿业有限公司 硫磺沟煤矿,新疆 昌吉 831114
Author(s):
LIN Hai-fei1 CHENG Bo1 LI Shu-gang1 ZENG Qiang2 ZHANG Xue-tao3CHENG Lian-hua1
1.College of Energy Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Xinjiang Coal Research Institute,Urumqi 830091,China; 3.Liuhuanggou Coal Mine,Yankuang Xinjiang Mining Industry Limited Company,Changji 831100,China
关键词:
阜康矿区 氮吸附 吸附孔结构 比表面积 孔隙体积
Keywords:
Fukang mining area nitrogen adsorption adsorption pore structure specific surface pore volume
分类号:
TD 712
DOI:
10.13800/j.cnki.xakjdxxb.2015.0608
文献标志码:
A
摘要:
为研究新疆阜康矿区主采煤层吸附孔孔隙结构特征,选取该矿区四个典型煤样,基于低温氮吸附实验绘制了煤样的吸附解吸等温线,得到煤的孔隙直径,采用BET模型和BJH模型计算了孔隙比表面积和体积等参数,分析了煤样孔隙比表面积及体积分布规律。结果表明:新疆阜康矿区煤的吸附解吸等温线回滞环很小,吸附孔以一段开口的均匀圆筒形孔为主。煤样吸附孔发育程度差别明显,导致各煤层对瓦斯吸附储存能力有所不同。各煤样孔径分布较为均衡,比表面积以过渡孔占比最大,其次为微孔及中孔; 过渡孔和中孔的孔隙体积占比较大,微孔较小。煤样孔隙体积分布规律基本一致,比表面积在过渡孔和中孔范围内分布规律相同,微孔范围内分布差异较大。
Abstract:
To study the adsorption pore structure characteristics of main coal seam in Xinjiang Fukang mining area, four typical coal samples were selected in this mining area. Based on the experimental results of low temperature nitrogen adsorption, the adsorption and desorption isotherms of coal samples were drawn, and the pore diameter is obtained. Using the BET theory and BJH theory, pore specific surface area and volume of coal samples are calculated. The distributions of pore specific surface and volume of coal samples were analyzed. The experimental results show that the adsorption and desorption isotherms of coal in Fukang mining area have very small hysteresis loop, and most of the pores are cylindrical with one end open. The difference of adsorption pore development degree of coal sample is obvious, which causes different storage capacity of gas adsorption of coal seam. The average pore sizes of each coal sample are approximately the same. The specific surface area of transition pores accounted for the largest surface area of adsorption pore, followed by micropore and mesopore; the volume of transition pore and mesopore accounted for the largest volume of adsorption pore, and the microporous accounted for the least. The distribution laws of pore volume of four coal samples are basically the same; the distribution laws of specific surface area are basically similar in mesopore and transition pores, but they are quite different in micropore.

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备注/Memo

备注/Memo:
基金项目:新疆维吾尔自治区科技支撑基金资助项目(201333110) 通讯作者:林海飞(1979-),男,山西天镇人,博士,副教授,E-mail:lhaifei@163.com
更新日期/Last Update: 2015-11-15