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Research progress on degradative solvent extraction of low-rank coals [PDF]
Meitan kexue jishu, 2023 The degradative solvent extraction of low rank coal is the use of solvents to extract low rank coal under mild conditions, through the dehydration and multi-stage separation of the raw coal： the extraction products with no water content, no ash content ...
Zhu GUO +9 more
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Study of the Microstructural Characteristics of Low-Rank Coal under Different Degassing Pressures
Energies, 2022 Low-rank coal samples from the Xishanyao Formation in the southern Junggar basin of Xinjiang were processed under different negative pressures in order to examine the microstructural characteristics of low-rank coal reservoirs. The pore structures of low-
Yuanzhen Ma +4 more
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Chemical Engineering Transactions, 2023 East Kalimantan is a province that has the largest coal reserves in Indonesia. One type of coal that is widespread and has low economic value as an energy source is low-rank coal.
Alwathan Sofian +4 more
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Frontiers in Earth Science, 2022 Based on the results of previous research on the fracture systems of reservoirs of middle- and low-rank coal, we took high-rank coal in the southern Qinshui Basin as the study object in this paper and summarize the characteristics of both macro- and ...
Yanhao Liu +4 more
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Kuangchan zonghe liyong, 2022 The energy structure characteristics of "rich coal, poor oil and less gas" in China determine the main energy status of coal resources, but its occurrence conditions are poor.
Zhihong Cheng
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Research Progress on Electro-Chemical Oxidation of Low-Rank Coal to Humic Acid
南方能源建设, 2022 [Introduction] With the vigorous development of renewable energy, clean and efficient utilization of low-rank coal not only improves resource utilization and economic value but also has great social significance.
Ruzhan BAI +6 more
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International Journal of Mining Science and Technology, 2023 The utilization of an appropriate collector or surfactant is crucial for the beneficiation of low-rank coal. However, in previous studies, the selection of surfactants was primarily based on flotation procedures, which hinders the understanding of the ...
Fen Xu +3 more
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Anaerobic bioprocessing of low-rank coals [PDF]
, 1991 The overall goal of this project is to find biological methods to remove carboxylic functionalities from low rank coals under ambient conditions and to assess the properties of these modified coals towards coal liquefaction. The main objectives for this quarter were: (1) enrichment of anaerobic microbial consortia in a coal fed chemostat, (2 ...
Jain, M. K., Narayan, R., Han, O.
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Meikuang Anquan, 2021 The coal-water interaction is of great significance for gas extraction and disaster prevention. Combined with 16 water vapor sorption models and the analysis of physicochemical structure of coal samples, the water adsorption behavior of low-rank and high-
YANG Yapu +5 more
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Influence mechanism of fatty acid unsaturation on the intensification of low-rank coal flotation
工程科学学报, 2023 To study the effect of fatty acid unsaturation on low-rank coal flotation, oleic acid, linoleic acid, and linolenic acid with the same number of carbon atoms but an increasing number of double bonds were selected as flotation collectors and compared with
Meng-di XU +7 more
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