采矿与安全工程学报2012，Vol.29Issue(4)：591-595,5.
高温高压平衡水分条件下变形煤的吸附-解吸特性
Adsorption-Desorption Characteristic on Deformed Coal Under the Conditions of High Temperature and Pressure and Equilibrium Water
摘要
Abstract
Under the conditions of high temperature and pressure and equilibrium water, the adsorp-tion-desorption experiments on CH4 were carried out with four destructive type of coal samples in No. 12 Mine of Pingdingshan. The experiment results show that the equilibrium moisture of coal sam-ples increase with the increasing extent of the coal damage in the conditions of 50 ℃. There are some new features on the adsorption-desorption of deformed coal, Langmuir volume of the VL (ash-free basis) first decreases and then increases, and decreases finally. Therefore, the characteristic of results of this adsorption-desorption experiments are due to the combined effects of the unique pore structure of de-formed coal and water content. The adsorption-desorption isotherms of deformed coal are irreversible, and this irreversible degree increases with increasing extent of the damage of coal. The data selected by adsorption experiments should not be straightforward used in the desorption experiments on a coal, es-pecially deformed coal.关键词
变形煤/吸附/解吸/高温高压/平衡水分Key words
deformed coal/ adsorption/ desorption/ high temperature and pressure/ equilibrium moisture分类
矿业与冶金引用本文复制引用
宋志敏,刘高峰,杨晓娜,张子戌..高温高压平衡水分条件下变形煤的吸附-解吸特性[J].采矿与安全工程学报,2012,29(4):591-595,5.基金项目
国家自然科学基金项目(41072114) （41072114）
高等学校博士学科点专项科研基金项目(20104116110002) （20104116110002）
河南省生物遗迹与成矿过程重点实验室开放基金项目(OTMP0905) （OTMP0905）
