Effect of surface roughness of Chinese sub-bituminous coal on the kinetics of three-phase contact formation

Effect of surface roughness of Chinese sub-bituminous coal on the kinetics of three-phase contact... Fuel 216 (2018) 531–537 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel Full Length Article Effect of surface roughness of Chinese sub-bituminous coal on the kinetics of three-phase contact formation Shiwei Wang, Jifeng Guo, Longfei Tang, Huan He, Xiuxiang Tao Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this paper, terminal diameter and expansion velocity of the three-phase contact (TPC) line on the low-rank Low-rank coal coal surfaces with different surface roughness were investigated. To eliminate the heterogeneity effect on the Surface roughness hydrophilic surfaces of low-rank coal particles, experimental samples with low ash content were adopted. Three-phase contact line Moreover, the analysis result of XPS indicated that there were few hydrophilic mineral particles on the low-rank AFM coal surface. Furthermore, from the analyses of SEM and AFM measurements there are many crevices (pillars, SEM protrusions) of different sizes (height and width) in different local areas of low-rank coal surfaces. Therefore, the XPS three-phase contact lines on the low-rank coal surfaces presented different wetting behaviors. It demonstrated that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fuel Elsevier

Effect of surface roughness of Chinese sub-bituminous coal on the kinetics of three-phase contact formation

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0016-2361
D.O.I.
10.1016/j.fuel.2017.12.053
Publisher site
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Abstract

Fuel 216 (2018) 531–537 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel Full Length Article Effect of surface roughness of Chinese sub-bituminous coal on the kinetics of three-phase contact formation Shiwei Wang, Jifeng Guo, Longfei Tang, Huan He, Xiuxiang Tao Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this paper, terminal diameter and expansion velocity of the three-phase contact (TPC) line on the low-rank Low-rank coal coal surfaces with different surface roughness were investigated. To eliminate the heterogeneity effect on the Surface roughness hydrophilic surfaces of low-rank coal particles, experimental samples with low ash content were adopted. Three-phase contact line Moreover, the analysis result of XPS indicated that there were few hydrophilic mineral particles on the low-rank AFM coal surface. Furthermore, from the analyses of SEM and AFM measurements there are many crevices (pillars, SEM protrusions) of different sizes (height and width) in different local areas of low-rank coal surfaces. Therefore, the XPS three-phase contact lines on the low-rank coal surfaces presented different wetting behaviors. It demonstrated that

Journal

FuelElsevier

Published: Mar 15, 2018

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