Change of Pore-Fracture Structure of Anthracite Modified by Electrochemical Treatment Using Micro-CT
Joint Authors
Kang, Tianhe
Kong, Xianfa
Guo, Junqing
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-21
Country of Publication
Egypt
No. of Pages
9
Abstract EN
The electrochemical method can strengthen gas desorption and seepage from coal.
The study on change of the pore-fracture structure of coal after electrochemical modification can help to reveal the mechanism.
Anthracite was modified by the electrochemical method using our own self-developed experiment apparatus.
The pore-fracture structure of modified samples was measured by micro-CT.
Combined with the Matlab software, its characteristics such as pore number, porosity, and average pore diameter were analyzed.
The results show that (1) the number of fractures in modified coal samples increases.
The shape of new fractures in samples in the anodic and cathodic zones was irregular voids and striola, respectively.
The effect of electrochemical treatment on the section of samples close to the electrode is relatively obvious.
(2) With increasing pore size, the number of pores in samples changes according to negative exponential rules.
After electrochemical modification, the porosity of modified samples in the anodic zone increases from 11.88% to 31.65%, and the porosity of modified samples in the cathodic zone increases from 12.13% to 36.71%.
(3) The main reason for the increase in the number of pores of coal samples in the anodic and cathodic zones is the treatment of electrolytic dissolution of minerals and electrophoretic migration of charged particles, respectively.
American Psychological Association (APA)
Kong, Xianfa& Guo, Junqing& Kang, Tianhe. 2018. Change of Pore-Fracture Structure of Anthracite Modified by Electrochemical Treatment Using Micro-CT. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1120146
Modern Language Association (MLA)
Kong, Xianfa…[et al.]. Change of Pore-Fracture Structure of Anthracite Modified by Electrochemical Treatment Using Micro-CT. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1120146
American Medical Association (AMA)
Kong, Xianfa& Guo, Junqing& Kang, Tianhe. Change of Pore-Fracture Structure of Anthracite Modified by Electrochemical Treatment Using Micro-CT. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1120146
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120146