Experimental Research on Structural Characteristics of Microscopic Pores of Coal Particles
DAI Linchao
NIE Baisheng
Abstract： In this paper,experimental research was made on the adsorption isotherm of coal particles ( the different sizes of the same coal) and analysis was carried out on the characteristic parameters of microstructure - the specific surface area,pore volume and average pore diameter with Quantachrome Autosorb-iQ specific surface area and pore size analyzer in order to further analyze the structural characteristics of pores in the coal body. Research showed that the adsorption isotherm of coal particles with different sizes presented a similar variation trend. With the increase of particle size,the specific surface area and total pore volume of coal particles decreased gradually,but the average pore size of it increased. The results can provide a certain theoretical basis for studying the gas adsorption,desorption and seepage flow mechanism of coal.
Keywords：coal particleporemicroscopic structureadsorption isotherm
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：4( 4-7 )