scholarly journals Practical Modification of Tannic Acid Polyether Demulsifier and Its Highly Efficient Demulsification for Water-in-Aging Crude Oil Emulsions

ACS Omega ◽  
2019 ◽  
Vol 4 (24) ◽  
pp. 20697-20707 ◽  
Author(s):  
Zhongwei Li ◽  
Shuguo An ◽  
Yafan Liu ◽  
Zhao Hua ◽  
Fujun Li ◽  
...  
Keyword(s):  
Crude Oil ◽  
Tannic Acid ◽  
Highly Efficient ◽  
Oil Emulsions

Noval tannic acid-based polyether as an effective demulsifier for water-in-aging crude oil emulsions

2018 ◽  
Vol 354 ◽  
pp. 1110-1119 ◽  
Author(s):  
Zhongwei Li ◽  
Hongkun Geng ◽  
Xiujun Wang ◽  
Bo Jing ◽  
Yafan Liu ◽  
...  
Keyword(s):  
Crude Oil ◽  
Tannic Acid ◽  
Oil Emulsions

Demulsification of a Water-in-crude Oil Emulsion with a Corn Oil BasedDemulsifier using the Response Surface Methodology: Modelling and Optimization

2021 ◽  
Vol 14 ◽  
Author(s):  
Abed Saad ◽  
Nour Abdurahman ◽  
Rosli Mohd Yunus
Keyword(s):  
Response Surface Methodology ◽  
Crude Oil ◽  
Water Content ◽  
Response Surface ◽  
Separation Efficiency ◽  
Corn Oil ◽  
Oil Emulsion ◽  
Optimal Values ◽  
Input Variables ◽  
Oil Emulsions

: In this study, the Sany-glass test was used to evaluate the performance of a new surfactant prepared from corn oil as a demulsifier for crude oil emulsions. Central composite design (CCD), based on the response surface methodology (RSM), was used to investigate the effect of four variables, including demulsifier dosage, water content, temperature, and pH, on the efficiency of water removal from the emulsion. As well, analysis of variance was applied to examine the precision of the CCD mathematical model. The results indicate that demulsifier dose and emulsion pH are two significant parameters determining demulsification. The maximum separation efficiency of 96% was attained at an alkaline pH and with 3500 ppm demulsifier. According to the RSM analysis, the optimal values for the input variables are 40% water content, 3500 ppm demulsifier, 60 °C, and pH 8.

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