抚顺油页岩及其残渣的热解性能  

On the Pyrolytic Properties of Fushun Oil Shale and Its Residue

作　　者：薛向欣[1] 李勇[1] 冯宗玉[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2008年第10期1447-1449,1454,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50674024)

摘　　要：用热重分析法研究了抚顺油页岩及其残渣的热解性质与热解动力学.结果显示,油页岩和油页岩渣的热解反应为两个过程：在常温~200℃,主要是水分的挥发,油页岩及其残渣中水的挥发量分别为2.446%和3.202%;在200~600℃,主要是固定碳的热解,失重率分别为16.048%和6.524%.采用Coats-Redfern方法得到了热解反应两个部分的动力学常数,抚顺油页岩的活化能分别为51.84和28.14 kJ/mol,频率因子分别为62.35和0.003 25 min-1;抚顺油页岩渣的活化能分别为36.62和55.05 kJ/mol,频率因子分别为0.009 76和0.341 min-1.另外油页岩渣中还有6.524%的有机物可进一步利用.A thermogravimetric analysis was made to investigate the pyrolytic properties of the Fushun oil shale and its residue. The results showed that their pyrolytic reaction can be divided into two processes. The first one is mainly the moisture volatilization within the range from room temperature to 200℃, then the moisture volatilization contents in the oil shale and its residue are 2. 446 % and 3. 202%, respectively. The second one is mainly the pyrolysis of fixed carbon between 200 ℃ and 600 ℃, then the rates of weight loss of oil shale and its residue are 16. 048 % and 6. 524 %, respectively. And the Coats-Redfern method is used to get the kinetic constant in pyrolytic reaction. Correspondingly, the activation energies of the kerogen shale are 51.84 and 28.14 kJ/mol, and the frequency factors are 62.35 and 0. 003 25 min ~, respectively. The activation energies of oil shale residue are 36.62 and 55.05 kJ/mol, and the frequency factors are 0.009 76 and 0. 341 min-1, respectively. In addition, there are 6. 524% of organic matters in the residue which can be utilized further.

关 键 词：油页岩 油页岩残渣 热重分析 热解性能 热解动力学 

分 类 号：TQ530.2[化学工程—煤化学工程]