煤矿安全2019，Vol.50Issue(9)：34-37,4.DOI:10.13347/j.cnki.mkaq.2019.09.010
基于瓦斯解吸率的煤中瓦斯含量测定新方法
A New Method for Gas Content Determination Based on Gas Desorption Ratio
摘要
Abstract
To measure gas content in coal seam efficiently and conveniently, a method using gas desorption ratio was presented in this paper. Results of the gas desorption experiments showed that gas diffusion coefficient values and their variations of a sample with different adsorption equilibrium pressures were similar, and the adsorption equilibrium pressure had tiny effect on gas desorption ratio in initial stage. Based on this, a method using the uniformity of gas desorption ratio in initial stage was established for gas content determination. The new method does not need to choose a desorption model and measure the residual gas content on ground. In the same place underground, the new method was compared with the gas content direct determination method and the result indicated that the new method could be used in engineering.关键词
瓦斯含量/瓦斯解吸/扩散系数/解吸率/瓦斯压力Key words
gas content/gas desorption/diffusion coefficient/desorption ratio/gas pressure分类
矿业与冶金引用本文复制引用
安丰华,袁宇,陈向军..基于瓦斯解吸率的煤中瓦斯含量测定新方法[J].煤矿安全,2019,50(9):34-37,4.基金项目
国家自然科学基金青年科学基金资助项目(51504084) （51504084）
河南省高校科技创新团队支持计划资助项目(17IRTSTHN030) （17IRTSTHN030）
河南省基础与前沿技术研究资助项目(162300410038) （162300410038）
