Yuanping Cheng

TL;DR: The impact of coal mine methane emissions in China has been drawing attention as coal production has powered its economic development as discussed by the authors, however, Chinese methane emission from coal production accounts for only a very small proportion on the environmental impact when compared to emissions of carbon dioxide from fossil fuel consumption.

TL;DR: In this article, molecular structural properties of five MHRC samples using X-ray diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy were investigated.

TL;DR: A review of the state of the art on the gas diffusion in coal particles from the aspects of definition, mathematical models, experimental methods, and applications in environment, energy and mining safety areas is presented in this paper.

TL;DR: In this article, the pore structure, adsorption, diffusion, permeability and geomechanical properties of tectonic coal are reviewed in detail and compared with those of the intact coal, as these properties are important for gas drainage.

TL;DR: In this paper, a model for gas migration and mechanical processes during excavation is established for gas desorption on outburst initiation, and the results obtained consider the deformation and mechanical changes and are compared with those obtained with consideration of only free gas.