Effect of Ultrasonic Treatment on the Properties of Petroleum Coke Oil Slurry

摘要

Two types of petroleum coke and paraffine oil slurries were prepared without additives at 50℃, with the effect of ultrasonic treatment on apparent viscosity and static stability being investigated. Experimental results indicated that ultrasonic treatment decreased the apparent viscosity of both slurries but improved their static stability markedly with little effect on the rheological behavior. The effectiveness of ultrasonic irradiation on the apparent viscosity and on the static stability was more remarkable with an increased petroleum coke concentration. Furthermore, it was found that the apparent viscosity was decreased and static stability was improved as the duration of treatment increased. Under the experimental conditions, a duration of 4 min of ultrasonic treatment was an optimum value in decreasing apparent viscosity and improving static stability.