In the absence of boric acid, the tubular Ti-MWW zeolite membranes are prepared with dual organic template agents and potassium carbonate by secondary hydrothermal synthesis. The 12MR super cage and 10 MR of the MWW topology structure is oriented and stabilized from TMAdaOH and HMI in this work,...

Bedding structure has affected gas flow in coal seam greatly, which also controls gas permeation direction and gas extraction results, and finally it has tremendous influence on prevention and control of gas disaster accidents. Combined with engineering practice of gas disaster prevention and...

Coal and gas outburst disasters in coal seams are becoming more serious as coal mines extend deeper underground in China. To aid gas control in high-gas outburst coal seam group, this study performed research based on the geological conditions of the Xinzhuangzi coal mine in the Huainan...

China's coal resources are being mined gradually deeper. Compared with the shallow part, the content and the emission of gas are significantly increased in the deep coal seam. In the mining of the highly-gassy coal seam, strengthening gas drainage in the goaf and fissure zone can improve the...