燃料化学学报2018，Vol.46Issue(1)：1-7,7.
爱沙尼亚油页岩及其热解产物的电子顺磁共振研究
Electron paramagnetic resonance ( EPR) properties of Estonia oil shale and its pyrolysates
摘要
Abstract
In order to describe pyrolysis characterization of Estonia oil shale kerogen, electron paramagnetic resonance ( EPR) was carried out to analyze influence of pyrolysis temperature on free radical concentration, g factors and line width (△H) of Estonia kerogen and its pyrolysates. The results show that range of free radical concentration of Estonia oil shale and its pyrolysis oil, thermal bitumen and semi-coke is between 2. 29×1014 and 9. 16×1014. The free radical concentration and g factor of thermal bitumen is higher than that of semi-coke. The thermal depolymerization of kerogen mainly occurs before 380 ℃ and intermediate thermal bitumen mainly decomposes above 380℃. The line width of the samples shows that△H of shale oil is much higher than that of semi-coke and thermal bitumen at higher pyrolysis temperature. It means that the interaction between spin particles in free radicals and the interaction between the spin particles and environment in liquids are much more severe than solid samples. Below 380 ℃, △H of thermal bitumen and semi-coke increases with rising temperature. The interaction between the spin particles and environment was enhanced with pyrolysis proceeding. Above 380℃,△H of thermal bitumen and semi-coke decrease, indicating that the interaction between the spin particles is weaken with the rising temperature.关键词
油页岩/热解/自由基/热沥青Key words
oil shale/pyrolysis/radical/thermal bitumen分类
天文与地球科学引用本文复制引用
石剑,李术元,马跃..爱沙尼亚油页岩及其热解产物的电子顺磁共振研究[J].燃料化学学报,2018,46(1):1-7,7.基金项目
The project was supported by the National Basic Research Program of China (973 Program, 2014CB744302), "Taishan Scholar" Special Construction Project (ts20120518) and the Scientific Research Foundation of China University of Petroleum (2462015YJRC002).国家重点基础研究发展规划(973 计划,2014CB744302),"泰山学者"建设工程专项(ts20120518)和中国石油大学(北京)科研启动基金(2462015YJRC002)资助 （973 Program, 2014CB744302）
