摘要
利用Agrawal近似法从化学动力学角度推导了煤低温氧化耗氧速率方程,得出O2浓度与温度的理论关系式,并利用柴里气煤静态耗氧实验数据,通过最小二乘法得到柴里气煤在各温度阶段的反应级数;由斜率和截距求得各阶段活化能E和指前因子A,并借用Tolman对活化能的定义,解释了柴里气煤低温氧化过程中活化能与温度、反应速率的关系,以及负的活化能的形成。
The oxygen consumption rate equation was established and the theoretical relationship between the oxygen concentration and temperature was deduced by using Agrawal approximate method and according to the chemical kinetics during low-temperature oxidation of coal.Based on static test data of oxygen consumption of Chaili gas coal,the reaction order of this coal at different temperature stage was obtained by the Least Square;the activation energy E and the pre-exponential factor A at different temperature stage were also calculated by slope and intercept.In particular,the relation between activation energy E and temperature T and reaction velocity and the formation of negative activation energy for Chaili gas coal were explained according to Tolman's definition on activation energy E.
出处
《矿业安全与环保》
北大核心
2009年第1期1-3,6,共4页
Mining Safety & Environmental Protection
基金
国家自然科学基金项目(50674090
50534090)
"十一五"国家科技支撑计划重点项目(2006BAK03B05)
