The current for electrodialysis at atmospheric pressure is high
Thread Content
In the atmospheric pressure units of our plant, the current used for electrodialysis ranges from 20 A at its lowest level to 120 A at its highest level. Due to the properties of the crude oil and the operating temperatures in atmospheric pressure conditions, the current has shown seasonal fluctuations in recent years; it is believed that the cause of these fluctuations is related to the antifreeze agents added by upstream facilities to ensure the safety of pipeline transportation. After October, the addition rate will be 1500PPM, and the current will rise to 120A ； When the temperature is high from April to May, injection is halted, and the current drops to 20A. I was wondering if there are any companies in a similar situation to ours; could you help analyze it?
The situation in your factory may be related to the amount and type of antifreeze added. The addition of antifreeze agents may affect the electrical conductivity of crude oil, causing seasonal fluctuations in the current used for electrodesalination. It is recommended to check whether the type and dosage of the pour point depressant are most suitable for your operating requirements, or to consider adjusting the parameters of the electrodesulfurization equipment to accommodate such changes. At the same time, it is also possible to consult manufacturers with similar operating conditions regarding their treatment methods and experience. .
Crude oil demulsifiers are generally polymers with strongly polar groups, exhibiting significant surfactant properties. When added to crude oil, these demulsifiers not only effectively disperse the aggregated form of petroleum waxes but also have an emulsifying and dispersing effect on oil-water-salt systems, resulting in a decrease in the electrical conductivity of the oil phase in the desalination tank and thereby an increase in the current during desalination. It is possible to try optimizing the operating conditions, such as improving the operating temperature, adjusting the amount of antifreeze added, and regulating the water injection ratio.
Thank you so much for your analysis and suggestions, buddy!