Establishment of solvent regeneration
Thread Content
Regarding the establishment of solvent regeneration, should the coking unit have its own separate system for solvent regeneration, or should regeneration be carried out centrally across the entire plant?
Well, it depends on the design of your factory; any of them will work, it depends on the scale of your operation
We use one recycling unit for the entire factory
Looking at the design of the device, those designed together must use the same solvent regeneration system； If the device designed in stages might require another set to be designed based on the load of solvent regeneration ；
Using the same set for solvent regeneration presents some problems; generally, coker rich liquid contains a large amount of gum particles, which causes the feed filter used in solvent regeneration to get clogged frequently, requiring backwashing – a rather troublesome situation； Dirty regenerative trays and wear inside equipment pipelines are all problems.
Both independent and shared designs are available; the choice depends mainly on operational efficiency. However, with a preference for independent design, the relative impact of various factors is **reduced, thus preventing issues arising from a malfunction in one unit from causing problems in multiple other units!
Centralized regeneration can reduce the overall energy consumption of the plant. However, the rich solvent after use in coking is extremely contaminated; likewise, the lean solvent after regeneration is sometimes not very clean, which affects the safe operation of other units
How do you exercise strict control?