Characteristics of methane desorption and diffusion in coal within a negative pressure environment

Characteristics of methane desorption and diffusion in coal within a negative pressure environment •Methane desorption and diffusion properties were studied in coal in a negative pressure environment.•Time-dependent desorption, at different negative pressure gradients, takes the form of a Langmuir adsorption isotherm.•Interfacial mass transfer resistance decreases, and the diffusion coefficient and Fourier’s criterion of mass transmission increase.•Increasing negative pressure changes the coal diffusion kinetics and enhances diffusion capacity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fuel Elsevier

Characteristics of methane desorption and diffusion in coal within a negative pressure environment

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0016-2361
D.O.I.
10.1016/j.fuel.2017.12.087
Publisher site
See Article on Publisher Site

Abstract

•Methane desorption and diffusion properties were studied in coal in a negative pressure environment.•Time-dependent desorption, at different negative pressure gradients, takes the form of a Langmuir adsorption isotherm.•Interfacial mass transfer resistance decreases, and the diffusion coefficient and Fourier’s criterion of mass transmission increase.•Increasing negative pressure changes the coal diffusion kinetics and enhances diffusion capacity.

Journal

FuelElsevier

Published: Apr 1, 2018

References

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