Study on the rapid removal of H_2S in underground coal mines
Abstract：Laboratory tests were carried out to select the optimal adsorbent to remove hydrogen sulfide in coal mine by sprinkling it into atmosphere.Characteristics of different adsorbents were investigated.The results show that Sodium carbonate shows a good initial hydrogen sulfide adsorption capability;however,the adsorption tail liquid is unstable that hydrogen sulfide can be readily emitted into atmosphere due to agitation or dilution;hydrogen sulfide is able to be oxidized into sulfur by adding an oxidant(NT) into the adsorption liquid,thus,hydrogen sulfide is removed from atmosphere instantaneously;in order to remove coal adhesive hydrogen sulfide,surfactant is added into absorbent to reduce the surface tension of absorbent and expand permeation radius,thus increases the removal efficiency of internal hydrogen sulfide within coal.
Keywords：hydrogen sulfidecoal minesoxidantsurfactant
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 2065-2069 )