A5088240638- Rock Mechanics and Modeling
- Coal Properties and Utilization
- Structural Response to Dynamic Loads
- Metal-Organic Frameworks: Synthesis and Applications
- Carbon Dioxide Capture Technologies
- Covalent Organic Framework Applications
- Hydrocarbon exploration and reservoir analysis
- Risk and Safety Analysis
- Geoscience and Mining Technology
- Combustion and Detonation Processes
Henan Polytechnic University
2019-2022
Separation of impurities (CO2 and N2) from CH4 is an important issue for natural gas alternatives (such as coalbed gas, biogas, landfill gas) upgrading. It notably challenging to synthesize high N-doped porous carbon with appropriate structure. In this work, N content (14.48 wt %) micropore size 0.52 1.2 nm specific surface area 862 m2 g−1 has been synthesized potassium hydroxide (KOH) activated waste wool upon the urea modification. Pure component adsorption isotherms CO2, CH4, N2 are...
In U‐shaped ventilation working face, different tunnel section shapes are one of the important factors affecting propagation gas explosion shock wave. order to study law wave in numerical simulation was carried out by using Fluent software combined with actual situation #415 face Chenjiashan Coal Mine Shaanxi Province. By constructing a three‐dimensional mathematical and physical model, upper‐corner out. The results described as follows. (1) After propagates 40 m, overpressure peak...
In order to study the pore structure characteristics of high‐rank coals with different bedding, NMR experiments were carried out for bedding angles (0°, 30°, 45°, 60°, and 90°). The results show that distribution T 2 map coal is similar some extent, showing a double peak or triple distribution, first accounts more than 97% total, indicating small holes are developed in while macropores not developed. influence angle on fracture proportion less 0.3%. Compared proportion, effect microhole,...
To investigate the effect of anisotropy coal body on gas extraction cis-borehole, permeability model based structural ratio and flow-solid coupling were established at a working face Zhongmacun mine Henan Province, China, as research object, COMSOL numerical simulation software was used. The results show that considering anisotropy, pressure decreases more faster than without farther away from borehole, smaller difference between them. time logarithmic function effective radius, negative an...