Ultrasonic viscosity-reduction vacuum residue oil

Abstract With the rapid development of economy, the demand for energy is increasing rapidly. And the output and processing amount of vacuum residue oil are also increasing year by year. The processing of vacuum residue oil is always a difficult problem in petrochemical industry. The high viscosity is the significant characteristic of vacuum residue oil. It is easy to cause serious influence in residue oil processing, such as reactor blockage. With the development of ultrasonic technology, ultrasonic viscosity reduction has become the focus of research. Its potential role in petrochemical industry has attracted more and more attention. Ultrasonic viscosity reducing vacuum residue oil is a new viscosity reducing process. Compared with the traditional viscosity reduction method, it has good viscosity reduction effect. The research progress of ultrasonic viscosity reducing vacuum residue oil is reviewed. In this paper, the mechanism of ultrasonic action, physical and chemical effects, ultrasonic viscosity reduction treatment conditions, viscosity reduction residue oil system influence and viscosity recovery, ultrasonic sound field simulation are reviewed and analyzed. In addition, ultrasound has a synergistic effect. Ultrasonic synergistic physicochemical methods (microwave; hydrogen donor) also has remarkable effects. Ultrasonic treatment technology is adopted on the basis of traditional microwave viscosity reduction and residue oil hydrogenation donor. This kind of ultrasonic collaborative method has excellent application prospect. But there are problems with this technology. The research direction of ultrasonic viscosity reduction residue oil in the future is also suggested. It can provide reference for related research.