Study on primal CO gas generation and emission of coal seam  

作　　者：Zhu Hongqing Chang Mingran Wang Haiyan 

机构地区：[1]College of Resource and Safety Engineering, China University of Mining & Technology, Beijing, Beijing 100083, China [2]China Coal Research Institute, Beijing 100013, China

出　　处：《International Journal of Mining Science and Technology》2017年第6期973-979,共7页矿业科学技术学报（英文版）

基　　金：provided by the National Natural Science Foundation of China(No.U1261214)

摘　　要：The main method of casting coal spontaneous combustion is prediction of index gases, with carbon monoxide(CO) commonly used as an index gas. However, coal spontaneous combustion is not the sole source of CO evolution; primal CO is generated through coalification, which can lead to forecasting mistakes. Through theoretical analysis, primal CO generation and emission from coal seams was determined.In this study, six coal samples were analyzed under six different experimental conditions. The results demonstrated the change in coal seam primal gas and concentration as functions of time, different coal samples, occurrence, various gas types and composition concentration, which are in agreement with the previous study on primal CO generation. Air charging impacts on primal gas emission. Analysis of the experimental data with SPSS demonstrates that the relationship between primal CO concentration and time shows a power exponent distribution.The main method of casting coal spontaneous combustion is prediction of index gases, with carbon monoxide(CO) commonly used as an index gas. However, coal spontaneous combustion is not the sole source of CO evolution; primal CO is generated through coalification, which can lead to forecasting mistakes. Through theoretical analysis, primal CO generation and emission from coal seams was determined.In this study, six coal samples were analyzed under six different experimental conditions. The results demonstrated the change in coal seam primal gas and concentration as functions of time, different coal samples, occurrence, various gas types and composition concentration, which are in agreement with the previous study on primal CO generation. Air charging impacts on primal gas emission. Analysis of the experimental data with SPSS demonstrates that the relationship between primal CO concentration and time shows a power exponent distribution.

关 键 词：Primal CO Prediction of SPONTANEOUS COMBUSTION EMISSION REGULARITY CO generation mechanism Index gas 

分 类 号：TD752.2[矿业工程—矿井通风与安全]