Fractal Characteristics of Coal Pores and its Change with Temperature

Abstract

The gases transportation and adsorption in the coal are greatly dependent on the pore-crack parameters, such as the porosity, the pore distribution, as well as the number and size of the pores. What's more, the pore parameters of the coal are always changing with the temperature. However, the pore characteristics and their changes are extremely difficult to quantify. in this case, Fractal Theory provides a good tool to address this issue. based on this theory, the pore distribution coupled with the size of the pores can be quantitatively described. in this paper, the equation used to calculate the Fractal Dimension of coal pores was deduced and Mercury Porosimetry was employed to test the pores distributions of coal samples at different temperature. the experimental data excellently verified the Fractal characteristics of coal pores. in addition, the experiments also indicate that the Fractal Dimension of the coal pores linearly increases with the temperature. Copyright © 2012 by SME.

Department(s)

Mathematics and Statistics

Second Department

Mining Engineering

International Standard Book Number (ISBN)

978-162276089-3

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Society for Ming, Metallurgy, and Exploration, All rights reserved.

Publication Date

14 Sep 2012

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