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Experimental Study of the Characteristic Changes of Coal Resistivity during the Gas AdsorptionDesorption Process
Joint Authors
Feng, Zengchao
Wang, Chen
Dong, Dong
Zhao, Dong
Zhou, Dong
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-21
Country of Publication
Egypt
No. of Pages
7
Abstract EN
To study the influence of gas adsorption-desorption on the resistivity of coal, the resistivity changes in conditions of continuous adsorption/desorption and isovolumetric adsorption/desorption were tested by high-precision resistance measurement, and the relationship between coal resistivity and gas content was investigated.
The results show that gas adsorption/desorption has obvious effects on the resistivity of coal.
Similar behavior was observed both in continuous adsorption/desorption and in isovolumetric adsorption/desorption experiments.
The coal resistivity decreased gradually at the very beginning and then tended to stabilize as the gas adsorption capacity increased; in the process of gas desorption, the resistivity demonstrated a linear relationship with gas content.
When comparing resistivities for the different adsorption modes, it was found that, for the same gas content in each mode, the resistivity change in the isovolumetric adsorption experiment was more obvious than in the continuous adsorption experiment.
Also, the coal resistivity in the isovolumetric experiment differed further from the original figure when the desorption ended.
The results are significant for predicting gas content in the coal mining process.
American Psychological Association (APA)
Feng, Zengchao& Wang, Chen& Dong, Dong& Zhao, Dong& Zhou, Dong. 2018. Experimental Study of the Characteristic Changes of Coal Resistivity during the Gas AdsorptionDesorption Process. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1119707
Modern Language Association (MLA)
Feng, Zengchao…[et al.]. Experimental Study of the Characteristic Changes of Coal Resistivity during the Gas AdsorptionDesorption Process. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1119707
American Medical Association (AMA)
Feng, Zengchao& Wang, Chen& Dong, Dong& Zhao, Dong& Zhou, Dong. Experimental Study of the Characteristic Changes of Coal Resistivity during the Gas AdsorptionDesorption Process. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1119707
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119707