When is the waste amine stream from amine solution regeneration used?
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Is it only used when the plant is shut down to drain the lean amine solution and rich amine solution from the towers, vessels, heat exchangers, pumps, and pipes? Do these waste amine liquid pipelines need to be purged with steam, deionized water, or similar substances? Does the material grade required for buried waste amine liquid pipelines need to be as high as that used for amine-rich liquids? O(∩_∩)O Thank you
This post was last edited by ylb913 on 2016-3-15 13:28. Amine removal line? Underground, to the amine solution preparation tank (underground tank); it can also go to the amine solution storage tank and the amine solution circulation tank. Due to the issues with the anti-corrosion coating, steam is generally not allowed to pass through underground wires; washing them with water is usually sufficient.
So, do you use (1) demineralized water or something else to flush the pipes once after discharging waste amine solution? For things like the drain lines of those rich amine liquid pumps, each drain line has either (1) a rigid connection, (2) a hose fitting, or (3) nothing at all – in which case is the connection made through venting or drainage?
It is mainly used for shutting down the process and removing materials; it is flushed with desalinated water, connected directly to the desalinated water pipeline
Is the desalinated water connected at the end of the waste amine liquid main pipe? Is the waste amine solution completely drained before flushing with desalinated water? How can I tell if it’s been rinsed clean?