The research on dehydrating of heavy oil by ultrasonic

Routine dehydration can´t be satisfied the practical demand because of the heavier, the higher salinity and the more seriously demulsification of oil. The factors affecting the desalting and dewatering during the ultrasonic pretreatment of crude oil were investigated, including electric field strength, ultrasonic frequency, field temperature, the settlement time, pulse time and working mode, etc. The contrasting results show that sound intensity, radiation time and frequency are the main factors, and the secondary factors are test temperature, working mode and settlement time. Some reasonable operation parameters for ultrasonic demulsification of heavy oil dehydration are determined. The process and technical parameters for the application of heavy oil dehydration by ultrasonic demulsification are provided.