Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation study
The filtration and dewatering of fine clean coal not only ensure industrial water recycle in coal washing plant, but also reduce the moisture of coal product in order to meet the requirements of combustion or coking industry. Fine clean coal is mainly composed by organic matter, and the property dif...
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doaj-385baea8c1224192a90300feff6632f72021-02-27T04:38:09ZengElsevierInternational Journal of Mining Science and Technology2095-26862021-03-01312233240Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation studyAn Ping0Wencheng Xia1Yaoli Peng2Guangyuan Xie3School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, ChinaCorresponding authors.; School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, ChinaCorresponding authors.; School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, ChinaSchool of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, ChinaThe filtration and dewatering of fine clean coal not only ensure industrial water recycle in coal washing plant, but also reduce the moisture of coal product in order to meet the requirements of combustion or coking industry. Fine clean coal is mainly composed by organic matter, and the property difference of different organic matter determines the filtration and dewatering behavior. In this investigation, vitrinite and inertinite were separated from a clean bituminous coal, and the comparative filtration and dewatering behavior of vitrinite and inertinite were conducted. The results showed that inertinite has lower dewatering rate and higher filter cake moisture than vitrinite. The analysis of filter cake structure showed that inertinite particle is easier to be broken into small particles due to the difference of mechanical properties, thus forming more compact filter cake than vitrinite. The analysis of particle surface properties showed that vitrinite is more hydrophobic than inertinite, which makes water easier drained from filter cake. The simulation study showed that the structure of inertinite is more porous than that of vitrinite, and the interaction between inertinite and water is stronger than that between vitrinite and water. This study provides a theoretical basis for improving coal dewatering by selectively improving coal maceral hydrophobicity.http://www.sciencedirect.com/science/article/pii/S2095268620309605Coal maceral groupsFiltrationDewateringSimulation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
An Ping Wencheng Xia Yaoli Peng Guangyuan Xie |
spellingShingle |
An Ping Wencheng Xia Yaoli Peng Guangyuan Xie Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation study International Journal of Mining Science and Technology Coal maceral groups Filtration Dewatering Simulation |
author_facet |
An Ping Wencheng Xia Yaoli Peng Guangyuan Xie |
author_sort |
An Ping |
title |
Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation study |
title_short |
Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation study |
title_full |
Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation study |
title_fullStr |
Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation study |
title_full_unstemmed |
Comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: Experiment and simulation study |
title_sort |
comparative filtration and dewatering behavior of vitrinite and inertinite of bituminous coal: experiment and simulation study |
publisher |
Elsevier |
series |
International Journal of Mining Science and Technology |
issn |
2095-2686 |
publishDate |
2021-03-01 |
description |
The filtration and dewatering of fine clean coal not only ensure industrial water recycle in coal washing plant, but also reduce the moisture of coal product in order to meet the requirements of combustion or coking industry. Fine clean coal is mainly composed by organic matter, and the property difference of different organic matter determines the filtration and dewatering behavior. In this investigation, vitrinite and inertinite were separated from a clean bituminous coal, and the comparative filtration and dewatering behavior of vitrinite and inertinite were conducted. The results showed that inertinite has lower dewatering rate and higher filter cake moisture than vitrinite. The analysis of filter cake structure showed that inertinite particle is easier to be broken into small particles due to the difference of mechanical properties, thus forming more compact filter cake than vitrinite. The analysis of particle surface properties showed that vitrinite is more hydrophobic than inertinite, which makes water easier drained from filter cake. The simulation study showed that the structure of inertinite is more porous than that of vitrinite, and the interaction between inertinite and water is stronger than that between vitrinite and water. This study provides a theoretical basis for improving coal dewatering by selectively improving coal maceral hydrophobicity. |
topic |
Coal maceral groups Filtration Dewatering Simulation |
url |
http://www.sciencedirect.com/science/article/pii/S2095268620309605 |
work_keys_str_mv |
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