Preparation and Evaluation of Anti-wax and Anti-scale Emulsion

Yueru Li ； Xiang Chen ； Xiaodong Xu ； Mingjie Lv ； Yu Zhang ； Yali Li

《International Core Journal of Engineering》 8卷9期 (2022/09) Pp. 303-315

https://doi.org/10.6919/ICJE.202209_8(9).0042

摘要

In this paper, SDS and Span80 were used as complex emulsifiers to prepare GY-3/CS integrated emulsion against wax and scale by two-phase emulsification method, and the influences of oil-water ratio, amount of emulsifier, amount of mutual solvent and other factors on the stability of the emulsion were investigated. The results determined that the optimal parameters for the stability of the integrated oil-in-water system. The HLB value is in the range of 10-13, the oil-water ratio is 1:3, the amount of emulsifier and mutual solvent is 7%, the stirring speed of the emulsification reaction is 1000-1200 r/min, and the emulsification temperature is kept at 20-40 ℃. Moreover, the particle size, viscosity, scale inhibition and wax inhibition performance of the integrated emulsion were tested. The results showed that the average particle size of the integrated emulsion was 920 nm, and the scale inhibition rates of CaCO3, CaSO4 and BaSO4 were 86.58%, 82.34% and 76.36%, respectively, under the dosage of 800 mg/L. The average wax inhibiting rate is 80.39%, and the pour point is reduced by 7.5 ℃.

關鍵字

Wax Inhibition ； Scale Inhibition ； Emulsion Stability ； Integrated Emulsion

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