Issues related to the adsorption and separation unit in aromatic compound combined plants
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This post was last edited by wlf1234 on 2019-8-16 at 14:34. Issues related to the adsorption and separation unit in aromatic hydrocarbons processing plants: Are the top and bottom flushing of the adsorption chamber performed as emergency flushes in both locations? Does nothing else need to be rinsed?
Due to the circulation pump in the adsorption chamber, the flow of material passes through this chamber in all areas. To ensure product purity, prevent backmixing, and eliminate dead zones, PDEB is introduced into each end cap, thereby maintaining a pressure slightly higher than that in the bed layer, which helps to improve product purity
Flushing the head is done to eliminate the dead zone in that area of the head and prevent contamination of the product; we use xylene from the bottom of the tower for flushing. I wasn’t clear on what you meant by \"emergency flushing\"