Iranian Chemical Engineering Journal

Iranian Chemical Engineering Journal

Investigation and Optimization of Effective Parameters in the Process of Desalination of Crude Oil by Electrostatic Method

Document Type : Original Article

Authors
H. Mehdizadeh 1
Gh. R. Moradi 2
1 Ph. D. Student of Chemical Engineering, Razi University
2 Professor of Chemical Engineering, Kermanshah Razi University
10.22034/ijche.2024.404817.1330
Abstract
The purpose of desalination in production units is to separate salt and water from the flow of crude oil in order to prevent corrosion and damage to facilities. In this study, the effect of effective parameters including temperature, demulsifier injection rate, dilution water injection rate and desalting device voltage on the efficiency of the desalination process of crude oil by electrostatic method to reach optimal conditions (Reaching the amount of salt and water in oil to less than 10 pounds per thousand barrels and 0.1 percent by volume, respectively) has been investigated. An increase in oil temperature causes a decrease in viscosity and accelerates the desalination process, and in this study, the optimum value was obtained at 48 degrees Celsius. Injection of demulsifier at the rate of 40 ppm and diluting water at the rate of 3% by volume of oil is necessary to achieve the highest separation efficiency. By applying 20 Kv of direct current in the desalination plant, the lowest amount of salt and energy consumption can be achieved.
Keywords
Crude Oil
Desalination
Electrostatic
Demulsifier
Subjects
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Iranian Chemical Engineering Journal
Volume 23, Issue 136
January and February 2025
Pages 22-34