特高煤级煤平衡水条件下的吸附实验

傅雪海; 秦勇; 李贵中; 徐磊; 胡超

doi:10.11781/sysydz200202177

特高煤级煤平衡水条件下的吸附实验

doi: 10.11781/sysydz200202177

中国矿业大学, 资源与地球科学学院, 江苏, 徐州, 221008

基金项目: 国家自然科学基金(49772131).

详细信息

作者简介:
傅雪海(1966- ),湖南衡阳县人,博士、高级工程师,专业方向为地球探测与信息技术.

中图分类号: TE135
计量
- 文章访问数: 691
- HTML全文浏览量: 55
- PDF下载量: 535
- 被引次数: 0
出版历程
- 收稿日期: 2001-01-11
- 刊出日期: 2002-03-25

ADSORPTION EXPERIMENT OF EXTRA-HIGH RANK COAL UNDER THE CONDITION OF EQUILIBRIUM MOISTURE CONTENT

College of Mineral Resource and Environment Sciences, CUMT, Xuzhou, Jiangsu 221008, China

摘要

摘要: 鉴于国内外对镜质组最大反射率R_o(max)大于4.0%的特高煤级煤的吸附特性研究的空白,作者系统地采集了12个R_o(max)>4.0%的煤样进行了平衡水条件下的高压等温吸附实验,分析了特高煤级煤样的朗格缪尔常数与R_o(max)、显微煤岩组分、比孔容和比表面积的关系,发现了煤的朗格缪尔体积随煤级变化的拐点是在R_o(max)为4.5%左右。在上述研究的基础上,文中探讨了煤的吸附特征及机理。
- 平衡水分 /
- 显微组分 /
- 等温吸附 /
- 特高煤级煤
Abstract: In view of the gaps existing in the adsorptive characteristics research of extra high rank coal whose vitrinite has the maximum reflectance(R_o(max))of more than 4.0%,twelve coal samples(R_o(max)>4.0%)were collected systematically and conducted a high pressure and isothermal adsorption experiment under the condition of equilibrium moisture content,and the relationships between the Longmuir constant of extra high rank coal samples and R_o(max),maceral,specific pore volume or specific surface area were analyzed.It was found that inflection point on the curve of Longmuir volume vs.coal rank is around R_o(max)=4.5%.On the basis of above research,the adsorptive characteristics and mechanism of coal were discussed.
- equilibrium moisture content /
- maceral /
- isothermal adsorption /
- extra-high rank coal

HTML全文

参考文献(13)

[1]	张新民,张燧安,钟玲文,等.中国煤层甲烷[M].西安:陕西科学技术出版社,1991.47-63.
[2]	张群,杨锡禄.平衡水条件下煤对甲烷的等温吸附特性研究[J].煤炭学报,1999,24(6):565-570.
[3]	秦勇.中国高煤级煤的显微岩石学特征及结构演化[M].徐州:中国矿业大学出版社,1994.48-108.
[4]	陈昌国.煤的物理化学结构和吸附(解吸)甲烷机理的研究[D].重庆:重庆大学,1995.
[5]	孙培德.煤层气流的固气耦合理论及其计算机模拟研究[D].重庆:重庆大学,1998.
[6]	Gray I.Reservoir engineering in coal seams:part Ⅰ-the physical process of gas storage and movement in coal seams[J].SPE Reservoir Engineering,1987,(2):28-34.
[7]	Mavor M J,Owen L B,Pratt T J.Measurement and evaluation of coal sorption isotherm data[A].SPE 20728[C].SPE 65th Annual Technical Conference and Exhibition,New Orleans,LA,September,1990.23-26.
[8]	ASTM D1412-93.Standard test method for moisture in the analysis sample of coal and coke[S].
[9]	Gan H,Nandi S P,Walker P L.Nature of the porosity in American coals[J].Fuel,1972,51:272-277.
[10]	Qin Y,Jiang B.Coalification jumps,stages and mechanism of high-rank coals in China[A].Yang Qi.Proc 30th Int Geol Congr[C].Netherlands:Int Sci Publishers,1997.99-122.
[11]	吴俊.中国煤成烃基本理论与实验[M].北京:煤炭工业出版社,1994.121-154.
[12]	钟玲文,张新民.煤的吸附能力与煤化程度和煤岩组成的关系[J].煤田地质与勘探,1990,18(4):29-35.
[13]	秦勇,姜波,曾勇,等.中国高煤级煤EPR阶跃式演化及地球化学意义[J].中国科学(D辑),1997a,27(6):499-502.