化学工业与工程

渣油的饱和分、芳香分、胶质和沥青质4组分的分布直接影响各工艺的产品产率与产品质量,对重质油加工具有十分重要的意义。探索超声波作用对油品4组分含量变化的影响,为进一步探索超声波对重质油4组分的化学作用提供依据。结果表明:超声波作用对重质油4组分的分布有影响,可以促进饱和分和芳香分质量分数的增加,胶质和沥青质质量分数的降低。本试验范围内,超声温度50～60℃,超声时间15 min,超声频率28 kHz,超声功率200 W,与原料油相比,重质油4组分中饱和分和芳香分质量分数增加率分别为5%和4%,胶质和沥青质质量分数分别减少了2.5%和7.5%。

The distributions of Saturates,Aromatics,Resins,and Asphaltenes(SARA) four components in the heavy oils are very important to heavy oil processes because they directly affected the yield and quality of products in processing technologies.To provide a basic data for further exploration of the chemical effects of ultrasound on the four components of heavy oil,the content change of four components with ultrasound was studied.The experiments explored oil temperature,ultrasonic power and ultrasonic frequency which affect the four components of heavy oil.The results showed that the distributions of SARA could be affected by ultrasound,the content of saturates,aromatics could be increased and resin content be decreased.In the experiments,when ultrasonic temperature was 50—60 ℃ for 15 min,ultrasonic frequency 28 kHz,ultrasonic power 200 W,compared with the raw heavy oil,the rates of saturates and aromatics were increased by 5% and 4%,and the resin and asphaltene were reduced by 2.5% and 7.5%,respectively.