超声波处理对减压渣油黏度的影响

Impact of ultrasonic treatment on variations of vacuum residual viscosity

以超声功率、超声时间和超声温度为影响因素,考察不同处理条件下超声波对渣油黏度的影响,并通过正交实验法、极差分析法和方差分析法来确定以渣油黏度为指标的最佳超声波处理条件。结果表明,3个影响因素中,超声波处理时间对减压渣油黏度的影响最显著,而对实验误差产生的影响不显著。在实验设计条件范围内,为使渣油降黏率达最大,最佳超声波处理条件是:超声时间70 min,超声功率750 W,超声温度70℃。

The impacts of ultrasonication on the vacuum residual viscosity were studied at different treatment conditions. The optimized treatment conditions with the vacuum residual viscosity as index were determined by the orthogonal experiments,range analysis and variance analysis. The result showed that the impact of ultrasonic treatment time on the vacuum residual viscosity is the most significant in the three factors and has little impact on the experimental errors. Within the experimental design conditions,the ultrasonic treatment conditions of ultrasonic time of 70 minutes,ultrasonic power of 750 W and ultrasonic temperature of 70 ℃ are optimal for the maximum vacuum residual viscosity reduction.