Analysis on Influence of Water Infusion by Adding Surfactant upon Gas Desorption
CHEN Shaojie
JIN Longzhe
CHEN Xuexi
SUN Chengkun
Abstract：With the self-designed adsorption and water infusion and desorption device, the experiments of the influence of water infusion upon gas desorption of coal samples were done by injecting the pure water and the water added with surfactant solution. The results showed that the gas desorption amount of coal sample injected with the pure water was larger than that of coal sample injected with the water added with surfactant solution in the same desorption time. With the increase of water infusion pressure and the addition of surfactant solution into the water, the pressure water can enter the smaller pores of coal, the moisture played a more remarkable blocking role to the gas and the gas desorption amount of coal samples decreased. Adding surfactant solution into water can greatly reduce the surface tension of pure water and improve the wetting effect of coal body, so the water infusion by adding surfactant solution has obvious effect on gas desorption of coal.
Keywords：surfactantwater infusion in seamgas desorptionsurface tension
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 12-14 )