煤层气等温吸附测试技术研究

Isothermal A dsorpt ion Test Technology of Coalbed Methane

为了解决目前现有等温吸附仪器样品缸在试验过程中煤粒容易带入气路,造成系统污染,甚至造成气路堵塞,影响测试准度等问题,提出了对等温吸附样品缸及实验方法的改进方案。实验结果表明,该方案能有效提高等温吸附实验效率和准确度,过滤系统可拆卸,避免气路污染,易于清理,节约资源,对煤层等温吸附准确测试和煤层气研究评价、开发利用有重要意义。

In the test of the sample cylinder of existing isothermal adsorption instrument,coal particles are easily brought into air channels,causing system contamination and blockage of the the air channels,as well as affecting the test precision.To solve the issues,this paper proposed an improved plan for the isothermal adsorption sample cylinder and experimental methods.Ex-perimental results show that the method can effectively improve the efficiency and accuracy of the isothermal adsorption experiment.The filter system is detachable,w hich could avoid air channel contamination,be easy to clean,and save resources.It is of great significance for the accurate test on the coal seam isotherm adsorption and for the evaluation,development,and utilization of coal bed methane.