油页岩脱挥发分动力学的分布活化能模型解析  

Kinetic analysis of devolatilization behavior of oil shales by using DAEM

作　　者：孙佰仲[1] 王海刚[2] 关晓辉[2] 王擎[2] 李少华[2] 孙保民[1] 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,北京102206 [2]东北电力大学能源与机械工程学院,吉林吉林132012

出　　处：《化学工程》2007年第12期26-29,共4页Chemical Engineering(China)

基　　金：国家科技部'十五'重点科技公关项目(2004BA907A24);吉林省重大科技攻关项目(20065022)

摘　　要：为了研究矿物质催化对油页岩脱挥发分行为的影响,文中利用热天平对桦甸油页岩脱挥发分行为进行了考察,采用分布活化能模型(DAEM)对其进行了动力学解析,结果发现,桦甸公河第4层和第5层油页岩脱挥发分过程中频率因子的对数lnA和活化能E之间的补偿效应发生了明显分段,活化能的变化趋势发生了改变。通过分析得出结论,矿物质催化作用改变了公河4层和公河5层油页岩脱挥发分过程中的络合物的性质,并使活化能有所降低,络合物性质的不同使补偿效应出现了明显分段,其中矿物质的催化作用对补偿效应影响较大。另外,活化能的变化趋势和补偿效应对判断催化反应具有一定的参考价值,补偿效应的折点是催化反应和非催化反应的分界点。To study the effect of mineral catalysis on devolatilization behavior of oil shale, the devolatilization behavior of Huadian oil shale was investigated by thermal balance, and the kinetics were analyzed by DAEM （distributed activation energy model）. The experimental results indicate that the compensation effect of In A vs E shows obvious subsection during devolatilization of oil shale in Gonghe Siceng and Gonghe Wuceng, and the trend of activation energy curves is changed. The analysis shows that the difference of complex compounds on properties and decrease of activation energy during devolatilization are caused by mineral catalysis. The obvious subsection of the compensation effect is attributed to different properties of complex compounds. The mineral catalysis has great effect on the compensation effect. In addition, a good reference is proposed for decision of catalytic reaction. Turning points of compensation effect are boundary points of catalytic reaction and uncatalytic reaction.

关 键 词：DAEM 动力学 矿物质催化 络合物 

分 类 号：P574[天文地球—矿物学]