饱和蒸气压对矿物孔隙结构影响的研究

Study on Effect of Hydrothermal Upgrading Parameters on Lignite's Pore Structure

本文研究了饱和蒸气压提质技术的两个参数—温度、压强对矿物表面结构的影响。结果表明在同一温度条件下,随压强增加,饱和蒸气压点吸附总孔容随压强增大,先减小再上升,之后减少并趋于平稳,在不同温度的变化趋势也一致,一定温度范围内,孔容随温度的升高也逐渐增大。

In this paper,the impact of the two parameters of the technology of lignite hydrothermal dewatering upgrading—temperature and pressure on surface structure of lignite was studied.The result showed that the whole single-point adsorption pore volume of lignite increased with pressure,featuring first decreased,then increased,finally decreased and tended to be steady.The change trend of it under different temperature was the same,and within certain temperature range,pore volume increased with raise in temperature.