Effect of the Chemical Composition of Coals on Surface Wettability and Filtration Properties
- Authors: Patrakov Y.F.1, Semenova S.A.1, Yarkova A.V.1
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Affiliations:
- Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
- Issue: No 4 (2023)
- Pages: 16-22
- Section: Articles
- URL: https://journals.rcsi.science/0023-1177/article/view/140033
- DOI: https://doi.org/10.31857/S0023117723040096
- EDN: https://elibrary.ru/OMVYYI
- ID: 140033
Cite item
Abstract
The method of liquid filtration through a layer of coal powder was used for a comprehensive characterization of surface wettability in conjunction with the determination of the contact angle. The effect of the degree of chemical maturity (metamorphism) of coal on the filtration characteristics of a layer with fractured porous properties was evaluated. Different activity of coal surfaces to water wettability upon a change from the native state to the surface-oxidized one was established. It was shown that the wetting and filtration properties of the coal surfaces increased from native to surface-oxidized coals and decreased as the degree of metamorphism increased from low to medium metamorphosed coals.
Keywords
About the authors
Yu. F. Patrakov
Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
Email: yupat52@gmail.com
Kemerovo, 650065 Russia
S. A. Semenova
Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
Email: semlight@mail.ru
Kemerovo, 650065 Russia
A. V. Yarkova
Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: nas.yarkova1998@yandex.ru
Kemerovo, 650065 Russia
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