吉木萨尔油页岩热解动力学的实验研究  

Pyrolysis kinetic model of Jimsar oil shale

作　　者：潘妮[1] 吕伟 戴方钦[1] Pan Ni;Lv Wei;Dai Fangqin(The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology)

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室

出　　处：《冶金能源》2018年第6期15-18,28,共5页Energy For Metallurgical Industry

基　　金：武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室项目(FMRU201502)

摘　　要：在升温速率为30℃/min时对吉木萨尔油页岩进行热重实验研究,根据实验所得TG/DTG曲线特点,采用高斯多峰拟合法将油页岩热解过程分解为五个阶段,每个阶段代表油页岩热解过程的不同特征反应。采用峰值分析法对不同特征反应建模并求解动力学参数(活化能E、指前因子A及反应级数n),不同特征反应对油页岩热解过程转化率贡献不同,其权重即为峰值分析中子峰曲线下方面积,采用加权叠加的方法对油页岩热解过程进行模拟,得到了油页岩热解过程动力学模型。结果表明:模拟结果与实验曲线吻合良好。Gravimetric experiments of Jimsar oil shale with a heating rate of 30℃/min were conducted.According to the experimental results of TG/DTG curve and the theory of Gauss multi-peaks fitting method,oil shale pyrolysis process was divided into 5 stages,each stage represents different response characteristics of oil shale pyrolysis process.The peak analysis method was used to determine the kinetic parameters(activation energy E,the pre-exponential factor A and the reaction order n)for each stage.The weight of each stage is different,which is represented by the area of the sub-peak,the oil shale pyrolysis process was simulated by using the method of weighted superposition,and the oil shale pyrolysis kinetic model was obtained finally.It is show that the simulation results and experimental results are in good agreement.

关 键 词：油页岩 热解 高斯多峰拟合 峰值分析法 

分 类 号：TE662[石油与天然气工程—油气加工工程]