不同压力及氧环境条件下微生物降解煤层瓦斯实验研究  

Experimental Study on Coal Seam Gas Degradation by Microorganism Under Different Pressure and Oxygen Environment Conditions

作　　者：张瑞林[1,2] 任学清[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454003 [2]河南工程学院安全工程系,河南郑州451191

出　　处：《煤矿安全》2014年第11期1-4,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51174082)

摘　　要：为了保障甲烷氧化细菌生物反应降解煤层瓦斯实验的顺利进行，自主研发了高压气体混合装置，研究了在不同压力及有氧、无氧条件下，甲烷氧化细菌降解煤层瓦斯的规律和对煤吸附瓦斯性能的综合影响。通过对实验前后CH。和CO2的变化量进行检测、对比和分析，发现在1-5 MPa压力范围内，压力越大越有利于甲烷氧化细菌对煤层瓦斯的降解；压力相同时，有氧环境下的CH。减少量明显多于无氧环境下的CH4减少量。Abstract：In order to ensure the experiment ot coal seam gas degradation by methane -oxlOlzmg bacteria smoormy, we deveioped me high pressure gas mixing device, researched the laws of coal seam gas degradation by methane - oxidizing bacteria and the combined effects of coal adsorption gas capacity under different pressures, and aerobic or anaerobic conditions. Through detecting, contrasting and analysis the changes of the amount of CH4 and CO2, we found that the higher pressure is good for coal seam gas degradation by methane - oxidizing bacteria between 1 MPa and 5 MPa pressure range ; under equal pressure condition, the reduction of methane in aerobic environment is more than anaerobic.

关 键 词：甲烷氧化细菌 降解 煤层瓦斯 高压气体混合装置 吸附瓦斯 

分 类 号：TD712[矿业工程—矿井通风与安全]