关键词: 印尼油砂油,    , 超声波时间,    ,  焦化柴油掺量,    , 沉降时间,    ,  沉降温度,    , 机械杂质

Abstract: The subject of experiment is oilsandsoil with high mechanical impurity. The study on the enhanced removal of mechanical impurities in oilsandsoil was carried out by ultrasonicsedimentation method. The effect factors including ultrasonic separation time, proportion of coking diesel oil, sedimentation time and sedimentation temperature were studied, respectively. The suitable conditions of demulsification and deimpurity in Indonesia's oilsandsoil were investigated by orthogonal experiment. The experimental results show that compared with the traditional sedimentation method, the removal rate of mechanical impurities in oilsandsoil is increased by more than 10% by ultrasonicsedimentation method. With the increase of the proportion of coking diesel oil, sedimentation time and sedimentation temperature, the proportion of mechanical impurities in oil sands decreased and the removal rate of mechanical impurities gradually increased. The proportion of coking diesel oil was the most important factor on the mechanical impurity proportion of refined oil. The optimum conditions for the removal of mechanical impurities by ultrasonicsedimentation method are as follows: the sedimentation temperature of 80 ℃, sedimentation time of 4.4 h, ultrasonic cleaning time 10.4 min and the mass proportion of coker diesel oil of 30.9%. Under the optimal conditions, the minimum mechanical impurity in the oilsandsoil was 0.26%.

Key words: Indonesian oil sands oil,   ,  Ultrasonic duration,   ,  Coker diesel,   ,  Sedimentation time,   ,  Sedimentation temperature,   ,  Mechanical impurity