Ezperiment study of model compound ozidation on spontaneous combustion of coal
Spontaneous combustion is one of the severest accidents in the process of coal production and transportation. Therefore it is significant to study the mechanism of coal spontaneous combustion. Based on theoretical analysis, 7 kinds of model compounds have been chosen in this paper, which are hyacinthin, anisole, diphenylmethane, phenetole, benzyl alcohol, benzhydrol, and α-phenylpropanol. And they contain respectively active groups such as aldehyde group, methoxyl group, hypomethyl bond, hypomethylether bond, hypomethyl bond of α-carbon atom with hydroxyl, hypoalkyl bond of α-carbon atom with hydroxyl, and so on. According to the theory of free radical reactions, taking the model compound of coal above as research object, chemical reaction kinetic parameters, thermodynamic parameters, and products from normal temperature to 150℃ have been quantitatively studied by oxidation device and analytical instrument, then the oxidation course can be deduced. The results show that all the model compounds consumed oxygen and produced CO and CO2 at different degrees after temperature programmed to 150℃. The oxidation characteristic of the active groups in coal and the effect of them on spontaneous combustion can be recognized, and spontaneous combustion mechanism can be exposited systematically in chemistry by means of studying the oxidation of model compound.
coal spontaneous combustion model compound active group ozygen consumption rate
Li Zeng-hua Wang Ya-li Song Na Yang Yong-liang Yang Yu-jing
School of Safety Engineering, China University of Mining & Technology, Xuzhou 221008, China
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-7
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）