Version 1
: Received: 27 July 2020 / Approved: 28 July 2020 / Online: 28 July 2020 (10:34:51 CEST)
How to cite:
Sang, F.; Yan, S.; Wang, G.; Ma, Z.; Li, J. Experimental Investigation of the Wetting Ability of Microemulsion to Different Coal Samples. Preprints2020, 2020070678. https://doi.org/10.20944/preprints202007.0678.v1
Sang, F.; Yan, S.; Wang, G.; Ma, Z.; Li, J. Experimental Investigation of the Wetting Ability of Microemulsion to Different Coal Samples. Preprints 2020, 2020070678. https://doi.org/10.20944/preprints202007.0678.v1
Sang, F.; Yan, S.; Wang, G.; Ma, Z.; Li, J. Experimental Investigation of the Wetting Ability of Microemulsion to Different Coal Samples. Preprints2020, 2020070678. https://doi.org/10.20944/preprints202007.0678.v1
APA Style
Sang, F., Yan, S., Wang, G., Ma, Z., & Li, J. (2020). Experimental Investigation of the Wetting Ability of Microemulsion to Different Coal Samples. Preprints. https://doi.org/10.20944/preprints202007.0678.v1
Chicago/Turabian Style
Sang, F., Zujie Ma and Jinzhou Li. 2020 "Experimental Investigation of the Wetting Ability of Microemulsion to Different Coal Samples" Preprints. https://doi.org/10.20944/preprints202007.0678.v1
Abstract
To improve water injection effect, microemulsions (MEs) were used to wet coal seam compared with water and sodium dodecyl sulfate solution (SDS). Wetting effects were characterized by contact angle, X-ray diffraction, Fourier infrared spectroscopy. The results showed that the microemulsion has better spreadability on coal surface and has stronger wettability for coals of different ranks and different particle sizes than traditional wetting agents. The W/O type microemulsion is more affinity to coal than the O/W type and the bicontinuous type.Oxygen and hydrogen contents contributed to wetting. Different wetting agents have the greatest impact on the oxygen-containing functional group absorption zone of coal, but have little impact on the change of clay mineral composition.As the content of quartz increased, the content of montmorillonite was decreased, and the hydrophilicity of coal was increased. This research proposes new ideas for solving coal dust problems and reducing coal mine disasters.
Keywords
coal wettability; microemulsion; contact angle; functional group; clay mineral
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
