Effect of the Chemical Composition of Coals on Surface Wettability and Filtration Properties

Yu. F. Patrakov; S. A. Semenova; A. V. Yarkova

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Effect of the Chemical Composition of Coals on Surface Wettability and Filtration Properties

机译：Effect of the Chemical Composition of Coals on Surface Wettability and Filtration Properties

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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.

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《Solid fuel chemistry》 |2023年第3期|157-162|共6页
作者
Yu. F. Patrakov; S. A. Semenova; A. V. Yarkova;
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作者单位

Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences;

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原文格式 PDF
正文语种英语
中图分类燃料化学工业（总论）;
关键词
hard coal; laboratory sample preparation; oxidation; wettability; filtration;

Effect of the Chemical Composition of Coals on Surface Wettability and Filtration Properties

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