Experimental Research on Low-Temperature Oxidation Characteristics of Lignite in Inner Mongolia
In this paper, characteristics of gaseous products and temperature rise of Inner Mongolia lignite in low-temperature oxidation experiment are studied by three experimental methods. They are normal temperature oxidation, program heat oxidation and adiabatic oxidation. The results indicated that tested coal samples can be oxidated and produce CO on normal temperature condition. The relation between CO concentration and oxidation time is single increasingly; it basically according to three cubed power law equation. CO concentration increase during oxidation and reach maximum at last. In programmed heat oxidation experiment, it produces CO when coal temperature higher than 40℃. CO concentration increase whit coal sample temperature according with index relation before 180℃. After 200℃, oxidation of coal samples comes into vigorous oxidation stage, and emits lots of heat. In adiabatic oxidation experiment, temperature of coal sample increase from 50℃ to 120℃ in 48 hours. The coal sample temperature rise is according to fourth power law equation. In this stage, emitting heat quantity is 6948.9J per one gram coal of sample 1.
lignite normal temperature oxidation programmed heat oxidation adiabatic oxidation
YANG Hongmin WANG Zhaofeng
School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454001, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
1914-1920
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）