摘要：This work investigates the performance of isooctyl glucoside (APG08) as an emulsifier for the preparation of a Karamay heavy crude oil-in-water emulsion to facilitate its pipeline transportation. First, various factors affecting the rheology and stability of prepared emulsions were studied. The results revealed that the viscosity and stability of emulsions increased with increasing oil content, surfactant concentration, mixing speed, mixing time, and pH of the aqueous phase. Emulsion viscosity was initially unchanged with the increase in homogenization temper-ature and then increased while emulsion stability decreased. Meanwhile, the optimal values of key parameters were 75 wt % oil content, 0.5 wt % surfactant concentration, temperature of 30 degrees C, mixing speed of 750 rpm, mixing time of 10 min, and aqueous phase pH of 11.14, resulting in a viscosity reduction of 88.82% and emulsion stability up to 48 h at 96.27%. In addition, a qualitative relationship between the stability and rheology of emulsions was elaborated by analyzing the experimental results. The findings showed that an increase in emulsion stability was accompanied by an increase in emulsion viscosity. Therefore, emulsion viscosity cannot become very high while improving emulsion stability to ensure proper transportation.

ISSN号：2470-1343

卷、期、页： 2022, 7, 42, 37736–37747

发表日期：2022-10-01

影响因子：3.512100

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）

发表期刊名称：ACS OMEGA

通讯作者：董波,秦宗禹,张家辉

第一作者：王逸伟,徐振,刘爱贤,郭绪强

论文类型：期刊论文

论文概要：董波,秦宗禹,王逸伟,张家辉,徐振,刘爱贤,郭绪强，Investigating the Rheology and Stability of Heavy Crude Oil-in- Water Emulsions Using APG08 Emulsifiers，ACS OMEGA，2022， 2022, 7, 42, 37736–37747

论文题目：Investigating the Rheology and Stability of Heavy Crude Oil-in- Water Emulsions Using APG08 Emulsifiers