Can a hydrofinishing unit be equipped with alkali washing and water washing? How should it be done, what is the process? ?
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Our company’s general manager said that the hydroprocessing unit needs to undergo alkali washing and water washing, but we don’t know how to carry out these processes. We’re looking for some help from everyone; this can be considered one of our challenges. Thank you.
Which materials are to be subjected to alkali washing and water washing?
Alkali washing is easy to carry out, right? The main step is mixing alkalis; after that, the alkalis and oil are separated, and then water washing is used to remove the alkalis from the oil
Just get two jars, one for the alkaline solution and one for water
Alkaline wash followed by water wash, sodium hydroxide. It’s very simple
My unit has a light naOH scrubbing tank
Which part should be washed? It’s not much contact – raw materials or products, or quantities from the intermediate processes?
Here, naphtha is washed with lye. Part of the naphtha from the tank area enters the lye mixer, where it mixes with the lye before going into the lye sedimentation tank. The naphtha then exits from the top of the tank, enters the water washing mixer, and subsequently goes into the water washing sedimentation tank. The naphtha is taken out from the top of the tank and sent back to the tank area, with circulation being achieved using two pumps
Same question: is it to perform an alkaline wash on oils with low grades, and then recycle the water from that alkaline wash solution?
If it is for washing low-viscosity oils, use two tanks: one for alkaline washing and another for water washing. Install a static mixer at the inlet of each tank so that washing takes place first with an alkaline solution and then with water. If horizontal tanks are used, a circulation pump is required. At the same time, high values can be effectively separated. For vertical drills, lower at the start and raise at the end.