Experimental Study of Carbon Monoxide Adsorption and Decorption in Different Coal
The paper analyzes the different ranks of coal pore structures and the pattern of carbon monoxide desorption and adsorption. The mercury experiment results show that, the lower degree pore structure of metamorphism coal samples, from Cuijiazhai coal mining companies, is mainly with macroporous, mesopore, and with large pore volume. However, the higher degree of metamorphism coal samples of Jinggezhuang coal mining companies is dominant transition pore structure, which is micropore pore and smaller volume. By scanning electron microscopy, it could be find that lower degree of metamorphism coal pore throat diameter is larger. Connection is strong among the holes. From carbon monoxide adsorption and desorption of coal samples results show that, carbon monoxide adsorption-desorption model in coal seam is generally consistent with Langmuir single-molecule adsorption-desorption model, and its adsorption-desorption process is reversible. With the pressure increasing, the carbon monoxide adsorption-desorption isotherm which from the lower degree metamorphism coal of cuojiazhai coal mining companies, was first increased and then decreased; On the contrast, the carbon monoxide adsorptiondesorption isotherm with the higher degree metamorphism coal of Jinggezhuang and Qianjiaying coal mining companies is more accord with the Langmuir monomolecular adsorption theory. That is the form of CO adsorption-desorption is more consistent with the form of Langmuir adsorption isotherm while the coal of metamorphic grade increasing.
carbon monoxide pore volume adsorption desorption Langmuir
XIAO Cangyan GUO Liwen CHEN Shuzhao HAN Xiuli
College of Light Industry, Hebei Polytechnic University, Tangshan 063020, Hebei, China Mining Develo College of Resource and Environment,Hebei Polytechnic University, Tangshan 063009, Hebei, China Mini School of Mining Engineering, State Key Laboratory of Coal Resources and Mine Safety, China Universi
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1499-1504
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）