Experimental Research on Carbon Dioxide Inhibiting the Process of Coal-oxygen Adsorption

摘要：

　　Carbon dioxide molecules are preferentially adsorbed on coal surface,which reduces adsorbing oxygen and inhibits process of coaloxygen adsorption.Through carrying out temperature-programmed experiment,inhibiting effect of carbon dioxide on process of coaloxygen adsorption was studied,concentration values of O2,CO and CH4 produced by coal samples under different concentrations of carbon dioxide were measured,and law of concentration of carbon dioxide affecting consuming rote of oxygen and producing rate of carbon monoxide was analyzed.Results show that 37%-50% concentration of carbon dioxide has obvious inhibiting effect on oxygen consuming rate in process of coals oxidation,and can reduce producing rate of carbon monoxide and methane obviously,which indicate that carbon dioxide can effectively inhibit process of coal-oxygen adsorption and prevent spontaneous combustion of coal.Experimental results could guide the development and application of fire preventing technology relating to carbon dioxide.

关键词： carbon dioxide coal-oxygen adsorption temperature-programmed experiment oxygen consuming rate inhibition

作者: Gao Yu-kun Zhang Ying-hua Huang Zhi-an Hu Chun-li Huang Men-yu

作者单位: State Key Laboratory of High-Efficient Mining and Safety of Metal Mines(University of Science and Technology Beijing), Ministry of Education Beijing 100083, China

会议类型: 国际会议

会议名称: 2012 International Symposium on Safety Science and Engineering in China (2012安全科学与工程国际会议)

会议地点: 北京

会议语种:英文

页码: 221-225

在线出版日期: 2012-11-07（万方平台首次上网日期，不代表论文的发表时间）