What is the best way to handle electrodialysis desalination when the atmospheric and vacuum distillation unit is shut down without draining oil?
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What is the best way to handle the electrodialysis desalination tank after the atmospheric and vacuum distillation unit stops operating due to lack of oil flow?
How long will it stop? What is the latitude?
Three months of shutdown, crude oil dew point 50℃
Do I need to perform maintenance? If no maintenance is carried out, it is still recommended to replace the oil with one of low freezing point, or to circulate the oil within the system!
Circulating the unit is not recommended during prolonged shutdowns. The electrodialysis tank has a large capacity; how much oil would be needed to replace it with low-freezing-point oil? It’s such a waste
How can operations commence if low-viscosity oils are not used for replacement? Afraid that the oil will solidify inside at that time? If it’s not made, it will definitely solidify inside, and once it’s solidified, there’s no way to deal with it!
To save money, use water instead of oil – no waste.
If the production is halted for three months without draining the oil, it is likely that there will be enough oil for use when production resumes. Three months from now it will be November, and winter will set in, leading to oil solidification in the pipelines and heat exchangers. Cleaning such pipes will require significantly more effort than normal cleaning procedures, so it is not recommended to halt production without draining the oil.
With a crude oil freezing point as high as 50, you must have stopped production and replaced it with residue oil; diluting it with crude oil of lower freezing point will prevent it from freezing