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[1]杨宇轩,康建宏,李光华,等.二氧化碳与水预处理煤样对甲烷吸附热效应特性的实验研究[J].中国安全生产科学技术,2018,14(8):61-67.[doi:10.11731/j.issn.1673-193x.2018.08.010]
 YANG Yuxuan,KANG Jianhong,LI Guanghua,et al.Experimental study on thermal effect characteristics of methane adsorption for coal samples pretreated by carbon dioxide and water[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(8):61-67.[doi:10.11731/j.issn.1673-193x.2018.08.010]
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二氧化碳与水预处理煤样对甲烷吸附热效应特性的实验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年8期
页码:
61-67
栏目:
学术论著
出版日期:
2018-08-31

文章信息/Info

Title:
Experimental study on thermal effect characteristics of methane adsorption for coal samples pretreated by carbon dioxide and water
文章编号:
1673-193X(2018)-08-0061-07
作者:
杨宇轩12 康建宏1 李光华1 李海鉴1
(1.中国矿业大学 安全工程学院,江苏 徐州 221116;2. 清华大学 工程物理系 公共安全研究院,北京 100084)
Author(s):
YANG Yuxuan12 KANG Jianhong1 LI Guanghua1 LI Haijian1
(1. School of Safety Engineering, China University of Mining and Technology, Xuzhou Jiangsu 221116, China;2. Institute of Public Safety Research, Department of Engineering Physics, Tsinghua University, Beijing 100084, China)
关键词:
二氧化碳预处理水预处理煤体甲烷吸附热吸附量
Keywords:
carbon dioxide pretreatment water pretreatment coal methane adsorption heat adsorption capacity
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.08.010
文献标志码:
A
摘要:
研究煤体吸附甲烷的热效应对于深入揭示煤层气在煤表面的吸附机理有重要意义。通过C80微量量热仪测试了无烟煤、焦煤、褐煤在二氧化碳与水预处理前后的甲烷吸附热力学参数,得到甲烷的等温吸附曲线和吸附热曲线,并建立了甲烷吸附量—吸附热定量模型,从能量角度解释了煤样预处理前后对甲烷的吸附特性。研究结果表明:经二氧化碳与水预处理后,煤样对甲烷的吸附量以及吸附过程产生的微量吸附热均有所增加,且预处理对煤体造成的影响主要体现在能增大其表面孔隙结构。
Abstract:
The study on the thermal effect of coal methane adsorption has important significance for deeply revealing the adsorption mechanism of coalbed methane on coal surface. The thermodynamic parameters of methane adsorption for the anthracite, coking coal and lignite before and after the carbon dioxide and water pretreatment were tested by using the C80 micro calorimeter. The isothermal adsorption curves and adsorption heat curves of methane were obtained, and a quantitative model of the adsorption capacity and adsorption heat of methane was established, then the characteristics of methane adsorption of the coal samples before and after the pretreatment were explained from the perspective of energy. The results showed that both the methane adsorption capacity and the micro adsorption heat produced in the adsorption process of the coal samples increased after the carbon dioxide and water pretreatment, and the influence of the pretreatment on the coal mainly reflected in increasing its surface pore structure.

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备注/Memo

备注/Memo:
国家重点研发计划重点专项项目(2018YFC0808100);国家自然科学基金-青年科学基金项目(11402293);国家自然科学基金-国家重大科研仪器研制项目(51427804);中国矿业大学大学生创新创业基金立项大学生创新项目(201602)
更新日期/Last Update: 2018-09-03