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Gang Zhou,Cunmin Wang,Qi Wang,Yixin Xu,Zhanyi Xing,Baoyong Zhang,Cuicui Xu 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.108 No.-
In the process of coal seam water injection, the components of different fracturing fluids have differenteffects on coal. To analyze the effect of water injection fracturing fluid on the physical and chemical propertiesof coal, we studied the relationship between guar-based fracturing fluid and cationic clean fracturingfluid (C-VES). Microscopic experiments show that guar-based fracturing fluid has a certain viscosityeffect on coal, while C-VES can adsorb and capture the primary coal dust in coal. FTIR analysis shows thatC-VES has a great change on the content of coal functional groups, and guar-based fracturing fluid haslittle effect on coal. Industrial analysis shows that C-VES can better reduce the ash content of coal andhas a certain impact on the thermal efficiency of coal than guar based fracturing fluid. Combustion characteristicexperiment shows that guar-based fracturing fluid does not affect the combustion effect of coal,and C-VES can expand the exothermic temperature range of coal but has little effect on the main combustionof coal. Molecular dynamics simulation results show that C-VES has the best wetting effect oncoal. This research provides theoretical guidance for dust prevention and improving the use and conversionefficiency of coal.
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