以水平回转式干馏炉为研究对象,采用离散单元法(discrete element method,DEM)建立颗粒运动模型,接触模型采用Hertz无滑动接触模型,分别对在其内设置不同形式抄板(直角抄板﹑弯抄板和直抄板)的混合效果和混合规律进行了数值研究。将大...以水平回转式干馏炉为研究对象,采用离散单元法(discrete element method,DEM)建立颗粒运动模型,接触模型采用Hertz无滑动接触模型,分别对在其内设置不同形式抄板(直角抄板﹑弯抄板和直抄板)的混合效果和混合规律进行了数值研究。将大小颗粒间接触数与颗粒间接触总数之比定义为混合质量,并以此来衡量混合程度,同时分析抄板形式及转速对混合质量的影响。研究结果表明,干馏炉内设抄板时,混合趋于稳定的时间较短,抄板形式对混合质量的影响较小;随着转速的降低,混合质量曲线越平缓,波动幅度越小。研究结果对干馏炉的设计和优化具有一定的指导作用。展开更多
Seeking ways to diminish Egypt’s dependency on foreign oil imports, we had to look for the obvious resources to exploit. Oil shale is one of Egypt’s resources that are left abandoned and not used. This project is ai...Seeking ways to diminish Egypt’s dependency on foreign oil imports, we had to look for the obvious resources to exploit. Oil shale is one of Egypt’s resources that are left abandoned and not used. This project is aiming at introducing both experimental analysis for oil shale in Egypt and the best production technique for it. This study is about experimentally analyzing different samples of potential oil shale fields in Egypt. Samples that are analyzed in this project are from two locations in Egypt: Quseir-Safaga and Abu-Tartur Western Desert, and they are compared to one of the best oil shale fields in the world, which is from Green River Formation Colorado. The experiments were done using AUC lab retort to experimentally determine the critical temperature that will lead to the maximum production using sudden and gradual change in temperatures, which turned out to be sudden change at 500°C. Thereafter, the degree of API gravity was calculated for each run. Then the oil samples were determined for impurities and liquid chromatography results in the Egyptian Petroleum Research Institute. Part two of the study plan has been included to determine the ultimate ways of producing efficiently, ecologically and economically.展开更多
文摘以水平回转式干馏炉为研究对象,采用离散单元法(discrete element method,DEM)建立颗粒运动模型,接触模型采用Hertz无滑动接触模型,分别对在其内设置不同形式抄板(直角抄板﹑弯抄板和直抄板)的混合效果和混合规律进行了数值研究。将大小颗粒间接触数与颗粒间接触总数之比定义为混合质量,并以此来衡量混合程度,同时分析抄板形式及转速对混合质量的影响。研究结果表明,干馏炉内设抄板时,混合趋于稳定的时间较短,抄板形式对混合质量的影响较小;随着转速的降低,混合质量曲线越平缓,波动幅度越小。研究结果对干馏炉的设计和优化具有一定的指导作用。
文摘Seeking ways to diminish Egypt’s dependency on foreign oil imports, we had to look for the obvious resources to exploit. Oil shale is one of Egypt’s resources that are left abandoned and not used. This project is aiming at introducing both experimental analysis for oil shale in Egypt and the best production technique for it. This study is about experimentally analyzing different samples of potential oil shale fields in Egypt. Samples that are analyzed in this project are from two locations in Egypt: Quseir-Safaga and Abu-Tartur Western Desert, and they are compared to one of the best oil shale fields in the world, which is from Green River Formation Colorado. The experiments were done using AUC lab retort to experimentally determine the critical temperature that will lead to the maximum production using sudden and gradual change in temperatures, which turned out to be sudden change at 500°C. Thereafter, the degree of API gravity was calculated for each run. Then the oil samples were determined for impurities and liquid chromatography results in the Egyptian Petroleum Research Institute. Part two of the study plan has been included to determine the ultimate ways of producing efficiently, ecologically and economically.
